Ohio Stoneflies

= recent collection (since 2010); = earlier collection.

Small Minnow Mayfly Acentrella nadineae, McCafferty, Walsh and Webb, 2009

First collection, most recent collections, locations, collectors:

First
08/29/1996. Monroe Co., Baker Fork, 39.7933, -81.0958, S Odee.
Adams Co.
08/03/2016. Stout Run, 38.69362, -83.379246, MJ Bolton.
Columbiana Co.
07/28/2005. Little Yellow Cr., 40.6196, -80.6771, J Freda.
Monroe Co.
07/13/2015. Brister Fork, 39.7278, -81.1708, L Hughes.
Scioto Co.
08/24/2016. Turkey Cr., 38.7086, -83.135, MJ Bolton.
Washington Co.
07/14/2014. Wilson Run, 39.5581, -81.1656, L Hughes.

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Cat-eye Small Minnow Mayfly Procloeon viridoculare (Berner, 1940)

First collection, most recent collection, location, collector:

First
09/21/1992. Hocking Co., Salt Cr., 39.377416, -82.642254, MJ Bolton.
Adams Co.
08/03/2016. Isaacs Cr., 38.69188, -83.614455, MJ Bolton.
Allen Co.
09/09/2019. Auglaize R., 40.7078, -84.2733, C McKnight.
Ashtabula Co.
09/17/2015. Conneaut Cr., 41-9039, -80.5294, S Macy.
Athens Co.
08/15/2016. Hewett Fk., 39.3175, -82.2781, M Gray.
Auglaize Co.
09/09/2019. Two Mile Cr.., 40.6618, -84.2589, C McKnight.
Belmont Co.
08/20/2012. Spencer Cr., 40.057118, -81.147515, MJ Bolton.
Brown Co.
08/23/2016. Eagle Cr., 38.75, -83.7672, MJ Bolton.
Butler Co.
08/08/17. Buck Run, 39.361088, -84.768625, S Macy.
Carroll Co.
09/19/2016. Long Run, 40.4901, -81.0717, S Macy.
Champaign Co.
08/19/2014. Spring Fk., 40.044182, -83.541933, E Moore.
Clermont Co.
09/09/2014. Bullskin Cr., 38.8008, -84.0586, C McKnight.
Clinton Co.
08/15/2013. E.Fk. Little Miami R., 39.225, -83.8258, E Moore.
Coshocton Co.
09/25/20117. White Eyes Cr., 40.305, -81.75, C McKnight.
Crawford Co.
08/14/2018. Broken Sword Cr., 40.884857, -82.836005, C McKnight.
Cuyahoga Co.
09/07/2017. Chagrin R.., 41.421919, -81.40004, MJ Bolton.
Darke Co.
09/04/2013. Stillwater Cr., 40.165, -84.4416, C McKnight.
Defiance R.
09/07/2016. Maumee R., 41.2867, -84.4381, MJ Bolton.
Delaware Co.
09/01/2016. Olentangy R., 40.257383, -83.06203, MJ Bolton.
Erie Co.
08/25/2016. Huron R., 41.2908, -82.6375, C McKnight.
Fairfield Co.
08/22/2019. Sycamore Cr., 39.8569, -82.7503, MJ Bolton.
Franklin Co.
10/05/2015. Big Walnut Cr.., 39.8678, -82.9317, C McKnight.
Fulton Co.
08/27/2013. Old Bean Cr., 41.6233, -84.2903, MJ Bolton.
Gallia Co.
08/14/2017. Indian Guyan Cr.,318971, C McKnight.
Geauga Co.
09/12/2018. W.Br. Cuyahoga R., 41.560832, -81.156441, E Moore.
Green Co.
09/22/2011. Little Miami R.. 39.6986, -84.0194, M Gray.
Guernsay Co.
09/18/2014. Wills Cr., 40.168242, -81.648628, L Hughes.
Hamilton Co.
10/03/2018. Whitewater R., 39.1831, -84.7928, MJ Bolton.
Hancock Co.
09/14/2017. Brightes Ditch, 41.0049, -83.5546, MJ Bolton.
Hardin Co.
08/18/2011. Taylor Cr., 40.6378, -83.6172, J Freda.
Harrison Co.
09/20/2016. Kirby Run, 40.4317, -81.085, S Macy.
Henry Co.
09/06/2016. Maumee R., 41.3206, -84.2, C McKnight.
Highland Co.
08/22/2012. E.Fk. Little Miami R., 39.2233, -83.8131, E Moore
Huron Co.
08/30/2016. W.Br. Huron R., 41.0211, -82.6667, C McKnight.
Jackson Co.
09/07/2016. Little Racoon Cr., 39.0094, -82.445, M Gray.
Jefferson Co.
08/11/2011. Yellow Cr., 40.5379, 80.725, J Freda.
Lake Co.
09/20/2017. Grand R., 41.7261, -81.2383, MJ Bolton.
Lawrence Co.
09/19/2016. Federal Cr.., 38.541156, -82.307079, C McKnight.
Lorain Co.
09/10/2015. Black R.., 41.379316, -82.107717, MJ Bolton.
Lucas Co.
09/05/2017. Swan Cr.., 41.5336, -83.8069, MJ Bolton.
Madison Co.
08/20/2014. Little Darby Cr., 39.918162, -83.259315, E Moore.
Mahoning Co.
08/19/2013. Meander Cr., 41.0478, -80.8275, A Dripps
Medina Co.
08/08/2017. Wolf Cr., 41.0881, -81.6875, E Moore.
Meigs Co.
08/18/2016. Strongs Run, 39.0703, -82.3028, M Gray.
Miami Co.
08/22/2013. Stillwater R., 39.9644, -84.3242, C McKnight.
Monroe Co.
08/22/2013. Stillwater R., 39.8383, -84.2458, C McKnight.
Montgomery Co.
09/09/2013. Dinner Fk., 39.71471, -81.59328, C McKnight.
Morgan Co.
08/27/2013. Olive Green Cr., 39.586074, -81.652137, C McKnight.
Muskingum Co.
09/25/2014. White Eyes Cr., 40.134658, -81.735982, L Hughes.
Noble Co.
08/29/2014. Buffalo Cr., 39.823781, -81.487171, L Hughes.
Ottawa Co.
09/05/2017. Toussaint Cr., 41.5014, -83.3385, MJ Bolton.
Paulding Co.
07/30/2019. Prairie Cr., 41.1003, -84.3805, C McKnight.
Pickaway Co.
09/08/2016. Scioto R., 39.6014, -82.9553, S Macy.
Pike Co.
07/14/2016. Swift Cr., 39.044281, -82.813272, MJ Bolton.
Portage Co.
08/28/2018. Braekneck Cr. 41.1394, -81.2708, C McKnight.
Putnam Co.
08/05/2019. Jenning Cr., 40.8631, -84.3393, C McKnight.
Ross Co.
09/09/2016. Scioto R., 39.3469, -82.9836, MJ Bolton.
Scioto Co.
09/08/2016. Scioto R., 38.8333, -83.0183, L Hughes.
Stark Co.
08/28/2019, Tuscarawas R., 40.8069, -81.5272, E Moore.
Summit Co.
07/26/2018. Yellow Cr., 41.1606, -81.649. MJ Bolton.
Tumbull Co.
09/10/2013. Mahoning R., 41.2414, -80.8286, A Dripps.
Tuscarawas Co.
09/272017. Tuscarawas R., 40.4833, -81.4389, C McKnight.
Union Co.
09/18/2013. Mill Cr., 40.215508, -83.261239, C McKnight.
Van Wert Co.
08/06/2019. Jennings Cr., 40.8597, -84.3422, C McKnight.
Vinton Co.
09/22/2016. Flat Run. 39.2203, -82.2706, M Gray.
Warren Co.
09/14/2016. Great Miami R., 395631, -84.305 C McKnight.
Washington Co.
09/23/2015. Little Muskingum R., 39.4094, -81.3586, L Hughes.
Wayne Co.
09/13/2017. Sugar Cr., 40.75, -81.6708, C McKnight.
Williams Co.
09/26/2013. St. Joseph R., 41.5192, -84.6975, L Hughes.
Wood Co.
09/05/2017. Toussaint Cr., 41.4623, -83.4923, MJ Bolton.

Rusty Small Minnow Mayfly Baetis rusticans, McDunnough (1925)

First collection, most recent collection, location, collector:

1972 Geauga Co. (Stebbins Gulch); VII-17-1972; Warren Co.; United States Nat. Museum.
Ohio EPA does not recognize this species. It may be listed under Baetis sp. or Baetidae in their database.

Small Minnow Mayfly Heterocloeon (Jubilatum) amplum (Traver, 1932)

First collection, most recent collection, location, collector:

1979. Clermont Co., as Baetis amplus, Moriihara & McCafferty (1979a).
1998. Guernsey Co. (Sugartree Fork), Vinton Co. (Flatlick Run), as Acentrella ampla, Purdue Entomol. Res. Ctr.
2019. Champaign Co. (Cedar Run, 40.0222, -83.8078). DH Dean.
Not listed by species by Ohio EPA. May be as Heterocloeon (H) sp. found in several counties.

Small Minnow Mayfly Iswaeon anoka, (Daggy, 1945)

First collection, most recent collection, location, collector:

First
08/20/1986. Summit Co., Little Cuyahoga R., 41.0558, -81.4231, J Freda.
Carroll Co.
09/04/2010. Sandy Cr., 40.6997, -81.1506, C McKnight.
Champaign Co.
10/03/2011. Mad R., 40.0531, -83.8149, DH Dean.
Clark Co.
08/22/2011. Little Miami R., 39.8325, -83.6944, A Dripps.
Coshocton Co.
07/01/2010. Dutch Run, 40.366959, -82/09656, A Dripps.
Franklin Co.
09/06/2011. Alum Cr., 39.9889.-82.9372. C McKnight.
Greene Co.
08/24/2011. N.Fk. Massoes Cr., 39.770863, -83.77083, A Dripps.
Madison Co.
08/18/2014. Little Darby Cr., 40.1083, -83.4933, E Moore.
Miami Co.
08/19/2013. Greenville Cr., 40.1142, -84.4028, E Moore.
Montgomery Co.
08/12/2013. Stillwater R., 39.8986, -84.2933, E Moore.
Pickaway Co.
08/31/2011. Scioto R., 39.5039, -82.9833, C McKnight.
Pike Co.
08/18/2011. L.Fk. Camp Cr., 38.974573, -83.15837, E Moore.
Portage Co.
08/28/2018. Breakneck Cr., 41.1445, -81.30773, C McKnight.
Preble Co.
10/03/2018. E. Fk. Whitewater R., 39.8439, -84.8053, MJ Bolton.
Ross Co.
09/06/2011. Kinnikinnick Cr., 39.4202, -82.9389, E Moore.
Summitt Co.
09/04/2018. Cuyahoga R., 41.124467, -81.53138, E Moore.
Washington Co.
l08/30/2013. Wolf Cr., 39.541187, -81.6418, E Moore.

Small Minnow Mayfly Baetis armillatus, McCafferty and Waltz (1990)

First collection, most recent collection, location, collector:

1991. Lake Co. (Grand R., RM 6.4, 8.8); OEPA

1994. Lake Co. (Grand R., RM13.6).
Ohio EPA does not recognize this species. It might be under Baetis sp. or Baetidae in their database.

Ringed Small Minnow Mayfly Acentrella parvula (McDunnough, 1932)

First collection, most recent collections, locations, collectors:

First
09/11/1991. Lake Co., Grand R., 41.7136, -81.2269. Ohio EPA Biologist
Ashtabula Co.
08/22/2011. Ashtabula R., 41.8742, -80.7158, MJ Bolton.
08/23/2011. Ashtabula R., 41.8489, -80.6889; 41.8516, -80.7272, MJ Bolton.
Coshocton Co.
08/09/2016. Walhondiing R., 40.2839, -81.8706, S Macy.
Fairfield Co.
08/222011. Scippo Cr., 39.5397, -82.8456, J Freda.
Lake Co.
09/20/2017. Grand R., 41.7261, -81.2383, MJ Bolton.
Ross Co.
08/29/2011. Walnut Cr., 39.330906, -82.8444, J Freda.
09/06/2011. Kinnikinnick Cr. , 39.4292, -82.9389, E Moore.
Washington Co.
08/22/2000. Duck Cr., 39.5569, -81.4163, E Moore. CAshtabula Co.
09/16,23/2015. Little Muskingum R., 39.510461, -81.25029; 39.5631, -812039; 39.4481, -81.3364, L Hughes.

Scraper Small Minnow Mayfly Acentrella rallatoma (Burian & Myers, 2011)

First collection, most recent collections, locations, collectors:

Coshocton Co.
07/01/2010. Darling Run, 40.36363, -82.0492; Dutch Run, 40.36696, -82.0966, A Dripps.
Meigs Co.
07/13/2015. Trib. W. Br. Shade R., 39.16997, -82.0798; W. Br. Shade R., 39.17033, -82.0815 L Hughes, C McKnight.

Orange-backed Small Minnow Mayfly Acentrella turbida (McDunnough, 1924)

First collection, most recent collections, locations, collectors:

First
1985. Guersey Co.; Washington Co.; Hall (1985)
Adams Co.
07/20/2016. Sulphur Cr., 38.63935, -83.32301, MJ Bolton.
Ashtabula Co.
09/08/2015. Conneaut Cr., 41.9271, -80.6043; 41.943632, -89.55057; 41.901902, -80.65283; 41.892737, -806678; 41.9039, -80.5294, S Macy.
Brown Co..
08/22-23/2016. Straight Cr., 38.7986, -83.8889; 38.8561, -83.85, MJ Bolton.
Butler Co.
08/08/2017. Dry Fk. Whitewater R., 39.381319, -84.814, S Macy.
Cochocton Co.
07/01/2010. Honey Run, 40.36404, -82.113052; 08/10/2010. Mill Cr., 40.2969, -81.8722; A Dripps.
Cuyahoga Co.
09/12-13/2017. Cuyahoga R., 41.373264, -81.61479; 41.4178, -81.6417, E Moore.
Erie Co.
08/25/2016. Huron R., 41.2908, -82.6375, C McKnight.
Geauga Co.
09/08/2015. E. Br. Chagrin R., 41.605544, -81.29177; 41.600913, -81.29087, MJ Bolton.
Green Co.
08/30/2011. Caesar Cr., 39.6331, -83.8697, A Dripps
Hamilton Co.
10/03/2018. Whitewater R., 39.1831, -84.7928, MJ Bolton.
Harrison Co.
08/28/2012. Stillwater Cr., 40.195, -81.2156, MJ Bolton.
Highland Co.
08/13-14/2012. Turtle Cr., 39.2406, -83.7803; Dodson Cr., 39.2228, -83. 8128, E Moore.
Huron Co.
08/24/2016. W. Br. Huron R., 41.2456, -82.6914, C McKnight.
Jackson Co.
08/17/2010. Holland Fk., 38.88493, -82.74222, MJ Bolton.
Jefferson Co.
08/11/2011. Yellow Cr., 40.5379, -80.725, J Freda.
Lake Co.
08/24/2016. Symmes Cr., 38.4847, -82.455, E Moore.
Logan Co.
09/08/2015. Little Darby Cr., 40.282375, -83.56415, E Moore.
Monroe Co.
07/23, 28/2015. Town Fork, 39.7089, -81.1553, Biglick Run., 39.6125, -81.1078, L Hughes.
Montgomery Co.
09/13/2016. Great Miami R., 39.6744, -84.2616, E Moore.
Morgan Co.
09/10/2013. Trib. W.Br. Wolf Cr., 39.562023, -81.92876, MJ Bolton;
Pike Co.
08/04/2011. R. Fk. Morgan Cr., 39. 1433, -83.1939, J Freda.
Portage Co.
09/12, 14/2017. Portage Co., Cuyahoga R., 41.245, -81.286; 41.1369, -81.4183, C McKnight, E Moore
Preble Co.
10/03/2018. Preble Co., E. Fk. Whitewater R., 39.8664, -84.7908; 39.8439, -84.8053, MJ Bolton.
Ross Co.
08/29/2011. Walnut Cr., 39.2678, -82.8361, C McKnight.
Scioto Co.
07/01/2010. Rocky Fk. Scioto R., 38.94814, -82.8929, MJ Bolton.
Summit Co.
09/12/2017. Summit Co., Cuyahoga R., 41.1169, -81.525, C McKnight.
Washington Co.
07/23/2015. Eight Mile Cr., 39.4153, -81.3489, C McKnight.

Small Minnow Mayfly, Acerpenna pygmaea, (Hagen, 1861)

First collection, most recent collection, location, collector:

First
1998; Allen Co., (?) Shown on Map [Fig 16] in Randolph & McCafferty, (1998) but not in text.
Adams Co.
08/25/2016. E. Fk. Eagle Cr., 38.7955, -83.6539, MJ Bolton.
Allen Co.
07/16/2019. Pigeon Run, 40.8102, -84.272, C McKnight.
Ashtabula Co.
07/07/2015. Trib. Conneaut Cr., 41.885183, -80.61943, S Macy.
Auglaize Co.
09/09/2019. Auglaize R., 40.6681, -84.2717, C McKnight.
Brown Co.
08/23/2016. Straight Cr., 38.7986, -83.8889, MJ Bolton.
Butler Co.
09/21/2017. Dry Fk. Whitewater R., 39.3269, -84.7486, S Macy.
Champaign Co.
08/07/2014. Little Darby Cr., 40.075, -83.5411, E Moore.
Clark Co.
08/11/2011. N.Fk. Massies Cr., 39.781669, -83.7278, A Dripps.
Clermoont Co.
09/09/2014. W.Br. Bullshin Cr., 38.3858, -84.0517, C McKnight.
Clinton Co.
08/15/2013. E.Fk. Little Miami R., 39.240729, -83.79614, E Moore.
Crawford Co.
09/11/2018. Broken Sword Cr., 40.888957, -82.87771, C McKnight.
Cuyahoga Co.
09/04/2018. Chippewa Cr., 41.317118, -81.5921, C McKnight.
Darke Co.
09/04/2013. Stillwater Cr., 40.1878, -84.55, C McKnight.
Defiance R.
09/07/2016. Maumee R., 41.2867, -84.4381, MJ Bolton.
Delaware Co.
09/01/2016. Olentangy R., 40.257383, -83.06203, MJ Bolton.
Erie Co.
08/25/2016. Huron R., 41.2908, -82.6375, C McKnight.
Fairfield Co.
08/22/2019. Sycamore Cr., 39.8569, -82.7503, MJ Bolton.
Fayette Co.
08/29/2011. Deer Cr., 39.659761, -83.26301, C McKnight.
Franklin Co.
09/15/2015. Olentangy R., 39.971964, -83.02071, MJ Bolton.
Fulton Co.
06/28/2017. AI Cr., 41.5957, -83.9867, MJ Bolton.
Geauga Co.
08/27/2018. W.Br. Cuyahoga R., 41.4506, -81.1589, MJ Bolton.
Green Co.
08/31/2011. Anderson Run. 39.5664, -83.9028, A Dripps.
Hamilton Co.
10/03/2018. Whitewater R., 39.1831, -84.7928, MJ Bolton.
Hancock Co.
09/14/2017. Brightes Ditch, 41.0049, -83.5546, MJ Bolton
Hardin Co.
07.03/2017. Rickenbach Ditch, 40.8325, -83.471, MJ Bolton
Henry Co.
09/06/2016. Maumee R., 41.3206, -84.2, C McKnight.
Highland Co.
08/14/2013. E.Fk. Little Miami R., 39.2233, -83.8131, E Moore
Holmes Co.
07/18/2017. Walnut Cr., 40.5397, -81.6906, S Macy.
Huron Co.
09/21/2016. W.Br. Huron R., 41.2808, -82.6756, C McKnight.
Lake Co.
09/20/2017. Grand R., 41.7261, -81.2383, MJ Bolton.
Lawrence Co.
07/13/2016. Sharps Cr., 38.614549, -82.49545, C McKnight.
Logan Co.
08/06/2014. Big Darby Cr., 40.2694, -83.5517, C McKnight.
Lorain Co.
08/31/2015. Beaver Cr., 41-3811, -82.2403, S Macy.
Lucas Co.
08/22/2018. Tenmile Cr., 41.6883, -83.735, C McKnight
Madison Co.
09/22/2014. Big Darby Cr., 40.0694, -83.2492, MJ Bolton.
Medina Co.
08/20/2012. E.Br. Black R., 41.018564, -82.0943, A Dripps.
Meigs Co.
07.13.2015. Bowman Run, 39.995928, -81.93205, C McKnight.
Mercer Co.
08/13/2018. Beaver Cr., 40.449124, -84.5658, C McKnight.
Miami Co.
08/19/2013. Greenville Cr., 40.1022, -84.43, C McKnight.
Morgan Co.
09/10/2013. Little Wolf Cr., 39.566799, -81.8726, C McKnight.
Noble Co.
09/09/2013. Dinner Fk., 39.71471, -81.59328, C McKnight.
Ottawa Co.
09/07/2017. Cedar Cr/Wards Canal, 41.6128, -83.3969, MJ Bolton.
Paulding Co.
09/26/2017. Middle Cr., 41.017367, -84.42925, S Macy.
Pickaway Co.
09/05/2014. Big Darby Cr., 39.6778, -83.0964, C McKnight.
Pike Co.
09/22/2011. Sunfish Cr., 39.0094, -83.0558, J Freda.
Putnam Co.
08/05/2019. Jenning Cr., 40.8631, -84.3393, C McKnight.
Ross Co.
09/06/2011. Kinnikinnick Cr., 39.4292, -82.9389, E Moore.
Summit Co.
09/06/2018. Furnace Run, 41.201516, -81.57335, C McKnight.
Tumbull Co.
09/09/2013. Mosquito Cr., 41.4619, -80.755, A Dripps.
Tuscarawas Co.
07/25/2017. Lick Run, 40.29, -81.605, C McKnight.
Union Co.
09/25/2014. Big Darby Cr., 40/1353, -83.32, MJ Bolton.
Van Wert Co.
08/06/2019. Jennings Cr., 40.8597, -84.3422, C McKnight.
Warren Co.
07/05/2011. Flat Fork, 39.4739, -84.0461, A Dripps.
Washington Co.
06/26/2013. Turkeyhen Run, 39.415943, -81.57151, C McKnight.
Wayne Co.
08/22/2017. Sugar Cr., 40.7838, -81.7297, C McKnight.
Williams Co.
09/18/2013. Beaver Cr., 41.4589, -84.4383, MJ Bolton.
Wood Co.
09/05/2017. Toussaint Cr., 41.4623, -83.4923, MJ Bolton.

Brown Small Minnow Mayfly Baetis brunneicolor, McDunnough (1925)

First collection, most recent collection, location, collector:

First
08/28/1991. Summit Co., Little Cuyahoga R., 41.054782, -81.40018, J DeShon
Champaign Co.
08/10/2015. Little Darby Cr., 40.070231, -83.54776, MJ Bolton.
Coshocton Co.
04/23/2012. Trib. Wills Cr., 40.167444, -81.69528, MJ Bolton.
Darke Co.
07/30/2013. Mud Cr., 40.0411, -84.6719, C McKnight.
Medina Co.
05/12/2017. Johnson's Cr.,41.2165, -81.7141; Mirror Valley Cr., 41.2211, -81.7054, DH Dean.
Preble Co.
08/02/2017. Rocky Fk. Whitewater R., 39.853354, -84.79894, S Macy.

Small Minnow Mayfly Baetis flavistriga, McDunnough (1921)

First collection, most recent collection, location, collector:

First
1979 Lake Co. (Paine Cr.) Morihara and McCafferty (1979a)
Adams Co.
07/16/2019. Puntenney Run, 38.71226, -83.38903, MJ Bolton.
Allen Co.
09/06/2019. Auglaize R., 40.6458, -84.0719, A Dripps.
Ashtabula Co.
09/17?2015. Conneaut Cr., 41.9039, -80.5294, S Macy.
Athens Co.
09/14.2018. Trib. Carbondale Cr., 39.3836, -82.2753, MJ Bolton.
Auglaize Co.
09/09/2019. Twomile Cr., 40.6618, -84.2589, C McKnight.
Belmont Co.
10/08/2014. Joy Fork, 39.9408, -80.9978, A Dripps.
Brown Co.
08/23/2016. Straight Cr., 38.7986, -83.8889, MJ Bolton.
Butler Co.
07/10/2018. Sater Run, 39.368211, -84.81065, S Macy.
Carroll Co.
09/20/2016. N.Fk. McGuire Cr., 40.5134, -81.0855, S Macy.
Champaign Co.
07/16/2018. Trib. Mosquito Cr., 40.18939, -83.97834, C McKnight.
Clark Co.
08/22/2011. Little Miami R., 39.8056, -83.7811, J Freda.
Clermont Co.
07/30/2018. Trib. O'Bannon Cr., 39.257626, -84.22607, C McKnight.
Clinton Co.
07/27/2018. Trib. Cowan Cr., 39.38591, -83.88057, C McKnight.
Columbiana Co.
08/09/2010. Sandy Cr., 40.735146, -80.95773, D Eicher.
Coshocton Co.
07/06/2017. Morgan Run, 40.276, -81.807, C McKnight.
Crawford Co.
09/11/2018. Broken Sword Cr., 40.888957, -82.87771, C McKnight.
Cuyahoga Co.
07/30/2019. Sagamore Cr., 41.3514, -81.5923, E Moore.
Darke Co.
08/02/2017, E.Fk. Whitewater R., 39.9392, -84.7719, S Macy.
Defiance Co.
08/30/2016. Middle Fk. Gordon Cr., 41.295, -84.7281, E Moore.
Delaware Co.
07/11/2019. Trib. Alum Cr., 40.167692, -82.96025, E Moore.
Erie Co.
08/25/2016. Huron R., 41.3917, -82.6069, C McKnight.
Fairfield Co.
08/23/2019. Sycamore Cr., 39.9292, -82.7242, MJ Bolton.
Fayette Co.
07/20/2011. Duffs Fork, 39.656461, -83.27162, C McKnight.
Franklin Co.
09/12/2018. Rush Run, 40.076164, -83.02741, C McKnight.
Fulton Co.
06/28/2017. AI Cr., 41.5957, -83.8976, MJ Bolton.
Gallia Co.
06/20/2017. Georges Cr., 38.617444, -82.30541, C McKnight.
Geauga Co.
07/18/2019. Trib. Silver Cr., 41.45866, -81.30365, MJ Bolton.
Greene Co.
08/09/2012.. Beaver Cr., 39.6981, -84.0269, A Dripps.
Guernsey Co.
09/12/2014. Birds Run, 40.1692, -81.6481, L Hughes.
Hamilton Co.
08/16/2019. Howard Cr., 39.30483, -84.76289, E Moore.
Hancock Co.
08/15/2017. Buckrun Cr., 40.953795, -83.53061, MJ Bolton.
Hardin Co.
09/14/2017. The Outlet, Blanchard Cr.., 41.0208, -83.4486, MJ Bolton.
Harrison Co.
06/22/2016. Conotton Cr., 40.3576, -80.9751, S Macy.
Henry Co.
09/24/2015. Brubaker Cr., 41.3481, -84.1867, E Moore.
Highland Co.
06/29/2016. Smith Branch, 39.166979, -83.49065, MJ Bolton.
Hocking Co.
09/25/2019. Spruce Run, 39.452569, -82.5993, MJ Bolton.
Holmes Co.
08/12/2019. Trib. Indian Trail Cr., 40.58, -81.7242, E Moore.
Huron Co.
09/21/2016. W.Br. Huron R., 41.2808, -82.6756, C McKnight.
Jackson Co.
07/13/2010. Bucklick Cr., 38.90171, -82.75178, MJ Bolton.
Jefferson Co.
09/03/2015. Trib. Carter Run, 40.514297, -80.6929, L Hughes.
Knox Co.
05/16/2013. Prime. Headwaters Little Jelloway Cr., 40.4645, -82.33771, C McKnight.
Lake Co.
09/20/2017. E.Br. Chagrin R., 41.5897, -81.2994, E Moore.
Lawrence Co.
06/19/2017. Miller Cr., 38.754765, -82.52464, E Moore.
Logan Co.
09/08/2014. Little Darby Cr., 40.282375, -83.59415, E Moore.
Lorain Co.
07/06/2016. Trib. Black R., 41.412851, -82.13741, M Gray.
Lucas Co.
08/22/2018. Tenmile Cr., 41.6769, -83.7564, C McKnight.
Msdison Co.
09/03/2014. Sugar Run, 40.0939, -83.2503, C McKnight.
Mahoning Co.
09/18/2013. Mahoning R., 41.0761, -80.6161, A Dripps
Medina Co.
09/08/2017. Wolf Cr., 41.092107, -81.73559, C McKnight.
Meigs Co.
08/04/2015. Yellowbush Cr., 38.96068, -81.89596, L Hughes.
Mercer Co.
08/15/2018. Beaver Cr., 40.449124, -84.5658, C McKnight.
Miami Co.
10/14/2015. Harris Run, 40.1403, -84.3742, E Moore.
Monroe Co.
09/09/2015. Witten Fork, 39.6311, -81.0528, C McKnight.
Montgomery Co.
09/13/2016. Great Miami R., 39.6744, -84.2617, E Moore.
Morgan Co.
10/01/2013. McPherson Run, 39.51295, -81.86013, E Moore.
Muskingum Co.
07/03/2014. White Eyes Cr., 40.073053, -81.77396, MJ Bolton.
Noble Co.
08/29/2014. S.Fk. Seneca Fork, 39.8433, -81.3175, L Hughes.
Ottawa Co.
09/07/2017. Cedar Creek, 41.6828, -83.3969, MJ Bolton.
Paulding Co.
08/12/2015. South Cr., 41.223092, -84.61036, E Moore.
Pickaway Co.
07/31/2018. Trib. Slate Run, 39.756906, -82.84201, MJ Bolton.
Pike Co.
08/16/2016. Georges Run, 39.05087, -83.19202, MJ Bolton.
Portage Co.
08/07/2019. Trib. W.Br. Mahoning R., 41.1258, -81.1297, MJ Bolton.
Preble Co.
10/03/2018. E. Fk. Whitewater R., 39.849, -84.8053, MJ Bolton.
Putnam Co.
08/05/2019. Jennings Cr., 40.8631, -84.3393, C McKnight.
Richland Co.
07/05/2016. W.Br. Huron R., 40.995, -82.6517, C McKnight.
Ross Co.
09/14/2011. Hickson Run, 39.172398, -82.83582, C McKnight.
Scioto Co.
08/25/2016. Turkey Cr., 38.7086, -83.135, MJ Bolton.
Seneca Co.
06/22/2016. Mud Run, 41.1161, -82.8422, C McKnight.
Shelby Co.
07/02/2015. Turtle Cr., 40.33, -84.2534, A Dripps.
Stark Co.
08/28/2019. Tuscarawas R., 40.8069, -81.5272, C McKnight.
Summit Co.
07/30/2015. Dickerson Run, 41-2184, -81.552, E Moore.
Trumbull Co.
09/11/2013. Mahoning R., 41.1544, -80.7061, A Dripps.
Tuscarawas Co.
09/27/2017. Tusccarawas R., 40.4833, -81.4389, C McKnight.
Union Co.
09/08/2014. Spain Cr., 40.228799, -83.52309, E Moore.
Van Wert Co.
08/06/2019. Jenning Cr., 40.8597, -84.3422, C McKnight.
Vinton Co.
09/22/2016. Flat Run, 39.2203, -82.2708, M Gray.
Warren Co.
08/06/2018. Trib. Muddy Cr., 39.366116, -84.29266, C McKnight.
Washington Co.
08/28/2018. Hog Run, 39.485903, -81.27044, MJ Bolton.
Wayne Co.
09/13/2017. Sugar Cr., 40.75, -81.6709, C McKnight.
Williams Co.
09/16/2013. Nettle Cr., 41.6722, -84.6889, L Hughes.
Wood Co.
09/07/2017. Cedar Cr., 41.589499, -83.47387, MJ Bolton.

Half Brown Small Minnow Mayfly Baetis intercalaris, McDunnough (1921)

First collection, most recent collection, location, collector:

First
08/27/1952. Montgomery Co. (Miami R.); Warren Co. 07/27/1952, AR Gaufin;
Adams Co.
08/24/2016. E.Fk. Eagle Cr., 38.7955, -83.6539, MJ Bolton.
Allen Co.
09/09/2019. Auglaize R., 40.7078, -84.2733. C McKnight.
Ashtabula Co.
09/17/2015. Conneaut Cr., 41.9039, -80.5294, S Macy.
Athens Co.
08/15/2016. Hewett Fork, 39.3175.-82.2781, M Gray.
Auglaize Co.
09/09/2019. Twomile Cr., 40.6618, -84.2589, C McKnight.
Belmont Co.
10/08/2014. Bent Fork, 39.9381, -80.9904, A Dripps.
Brown Co.
08/23/2016. Eagle Cr., 38.75, -83.7672, MJ Bolton.
Butler Co.
09/21/2017. Dry Fk. Whitewater R., 39.3269, -84.7486. S Macy.
Carroll Co.
09/20/2016. N.Fk. McGuire Cr., 41.5134, -81.0955, S Macy.
Champaign Co.
08/10/2015. Little Darby Cr., 40.070231, -83.54776, C McKnight.
Clark Co.
08/22/2011. Little Miami R., 39.8325, -83.6944, A Dripps.
Clermont Co.
07/30/2018. Trib. O'Bannon Cr., 39.257626, -84.22607, C McKnight.
Clinton Co.
07/27/2018. Trib. Cowan Cr., 39.38591, -83.88057, C McKnight.
Columbiana Co.
08/23/2010. Middle Br. Sandy Cr., 40.751572, -81.06938, D Eicher.
Coshocton Co.
09/27/2017. Tuscarawas R., 40.2789, -81.8706, C McKnight.
Crawford Co.
09/11/2018. Broken Sword Cr., 40.888957, -82.87771, C McKnight.
Cuyahoga Co.
07/30/2019. Sagamore Cr., 41.3514, -81.5923, E Moore.
Darke Co.
08/06/2019. Welker Lateral, 39.9531. -84.7049, E Moore.
Defiance Co.
09/07/2016. Maumee R., 41.2864, -84.4381, MJ Bolton.
Delaware Co.
09/12/2018. Barthomew Run, 40.151163, -83.05351, C McKnight.
Erie Co.
08/25/2016. Huron R., 41.2908, -82.6375, C McKnight.
Fairfield Co.
08/23/2019. Sycamore Cr., 39.9292, -82.7242, MJ Bolton.
Fayette Co.
08/29/2011. Deer Cr., 39.659761, -83.26301, C McKnight.
Franklin Co.
09/12/2018. Rush Run. 40.076164, -83.02741, C McKnight.
Fulton Co.
08/26/2015. Bad Cr., 41.530383, -83.98097, C McKnight.
Gallia Co.
08/14/2017. Indian Guyan Cr., 38.597159, -82.31897, C McKnight.
Geauga Co.
09/12/2018. W.Br. Cuyahoga R., 41.560832, -81.15644, E Moore.
Greene Co.
08/09/12. Beaver Cr., 39.6981, -84.0269, A Dripps.
Guernsey Co.
09/26/2014. Trib. Wills Cr., 40.146089, -81.66261, MJ Bolton.
Hamilton Co.
08/06/2019. Howard Cr., 39.30483, -84.76289, E Moore.
Hancock Co.
09/14/2017. The Outlet Blanchard R., 41.0322, -83.5476, MJ Bolton.
Hardin Co.
09/14/2017. The Outlet Blanchard R., 41.0208, -83.4486, MJ Bolton.
Harrison Co.
09/20/2016. Kirby Run, 40.4317, -81.085, S Macy.
Henry Co.
09/06/2016. Maumee R., 41.3206, -84.2, C McKnight.
Highland Co.
06/28/2016. Plum Run, 39.180235, -83.45492, MJ Bolton.
Hocking Co.
27/25/2016. W.Br. Raccoon Cr., 39.4197, -82.4692, M Gray.
Holmes Co.
09/12/2017. Walnut Cr., 40.5614, -81.6747, C McKnight.
Huron Co.
09/21/2016. W.Br. Huron R., 41.2808, -82.6756, C McKnight.
Jackson Co.
08/31/2016. Little Raccoon Cr., 39.1009, -82.4849, M Gray.
Jefferson Co.
08/11/2011. Yellow Cr., 40.5379, -80.725, J Freda.
Lake Co.
09/20/2019. E.Br. Chagrin R., 41.4897, -81.2994, E Moore.
Lawrence Co.
07/03/2017. Little Indian Guyan Cr., 38.581354, -82.37699, C McKnight.
Logan Co.
09/08/2014. Little Darby Cr., 40.282375, -83.59415, E Moore.
Lorain Co.
09/10/2015. Black R., 41.379316, -82.10772, MJ Bolton.
Lucas Co.
10/22/2018. Ottawa R. 41.6769, -83.6603, C McKnight.
Madison Co.
09/22/2014. Big Darby Cr., 40.0694, -83.2492, MJ Bolton.
Mahoning Co.
09/19/2013. Mahoning R., 41.03, -80.5192, A Dripps.
Medina Co.
08/09/2017. Wolf Cr., 41.092107, -81.73559, C McKnight.
Meigs Co.
09/15/2015. Shade R., 39.063378, -81.88176, C McKnight.
Mercer Co.
09/08/2016. St. Marys R., 40.6906, -84.6125, C McKnight.
Miami Co.
10/14/2015. Harris Run, 40.1403, -84.3742, E Moore.
Monroe Co.
09/09/2015. Little Muskingum R., 39.6339, -81.0678, L Hughes.
Montgomery Co.
09/13/2016. Great Miami R., 39.6406, -084.2922, C McKnight.
Morgan Co.
09/19/2013. Bear Run, 39.69218, -81.77122, E Moore.
Muskingum Co.
09/25/2014. White Eyes Cr., 40.134658, -81.73598, L Hughes.
Noble Co.
08/29/2014. Buffalo Cr., 39.823781, -81.48717, L Hughes.
Ottawa Co.
09/07/2017. Cedar Cr., 41.6128, -83.3969, MJ Bolton.
Paulding Co.
09/26/2017. Middle Cr., 41.019367, --84.42925, S Macy.
Pickaway Co.
09/08/2016. Scioto R., 39.6014, -82.9553, S Macy.
Pike Co.
08/15/2016. Bull Run, 30.045009, -83.14701, MJ Bolton.
Portage Co.
08/28/2018. Breakneck Cr., 41.1394, -81.2708, C McKnight.
Preble Co.
10/03/2018. E.Fk. Whitewater R., 39.8439, -84.8053, MJ Bolton.
Putnam Co.
08/05/2019. Jennings Cr., 40.8631, -84.3393, C McKnight.
Richland Co.
07/05/2016. W.Br. Huron R., 40.995, -82.6517, C McKnight.
Ross Co.
09/09/2016, Scioto R., 39.3469, -82.9836, MJ Bolton.
Scioto Co.
09/08/2016. Scioto R., 39.8333, -83.0183, L Hughes.
Seneca Co.
06/12/2016. Mud Run, 41.1161, -82.8422, C McKnight.
Shelby Co.
07/02/2015. Turtle Cr., 40.33, -84.2534, A Dripps.
Stark Co.
08/28/2019. Tuscarawas R., 40.8069, -81.5272, E Moore.
Summit Co.
07/30/2019. Dickerson Run, 41.2184, -81.552, E Moore.
Trumbull Co.
10/01/2013. Mosquito Cr., 41.2506, -80.7633, A Dripps.
Tuscarawas Co.
09/28/2017. Tuscarawas R., 40.6092, -81.4286, C McKnight.
Union Co.
08/13/2015. Town Run, 40.2292, -83.365, MJ Bolton.
Van Wert Co.
08/06/2019. Jenning Cr., 40.8597, -84.3422, C McKnight.
Vinton Co.
07/31/2017. Hewett Fork, 39.304465, -82.32265, C McKnight.
Warren Co.
09/14/2016. Great Miami R., 39.5631, -84.305, C McKnight.
Washington Co.
08/28/2018. Hog Run, 39.485903, -8127044, MJ Bolton.
Wayne Co.
08/22/2017. Sugar Cr., 40.76, -81.6911, C McKnight.
Williams Co.
09/26/2013. St. Joseph R., 41.4892, -84.7306, L Hughes.
Wood Co.
09/07/2017. Cedar Cr., 41.589499, -83.47387, MJ Bolton.

Common Small Minnow Mayfly Callibaetis ferrugineus ferrugineus, (Walsh, 1923)

First collection, most recent collection, location, collector:

1985. Guernsey Co., Hall (1985).
1998 Champaign Co. (Cedar Bog); Green Co.; Seneca Co. (Beaver Cr. Reservoir); Trumbull Co. (Mosquito Cr.); Ohio Biol. Survey.
Ohio EPA does not carry identification of Callibaetis beyond genus. Reported from several counties.

Common Small Minnow Mayfly Callibaetis fluctuans, (Walsh, 1923)

First collection, most recent collection, location, collector:

1993. Adams Co. (Beech Fork), BC Kondratieff, Colorado State Univ.; Adams Co. (Cassell Run), BC Kondratieff (adults), Adams Co. (Turkey Run), BC Kondratieff (adults), Athens Co. (Margaret Cr at TR 31 off US 50, VI-29-1993) Ohio Biol. Survey; Green co. (S. Br Caesar Cr. at Jasper Rd. ESE Xenia, VII-29-1993), Armitage (adults); 1995. Ottawa Co. (L. Erie, Sandusky Bay at Winous Point Shooting Club Site #1, marsh), VIII-31-1995 (adults), Ohio Biol. Survey.
Ohio EPA does not carry identification of Callibaetis beyond genus. Reported from several counties.

Common Small Minnow Mayfly Centroptilum alamance, (Traver, 1932)

First collection, most recent collection, location, collector:

1935. Lake Co., as Neocloeon alamance, Traver (1935).
1985. Guernsey Co., Noble Co. (Yoker Run), as Cloeon alamance. Hall (1985).
1998. Wayne Co. (Shade Cr.), Ohio EPA.
Ohio EPA lists this as "Centroptillum sp. or Procloeon sp. (formerly in Cloeon)" as found in several counties.

Hagen's Small Minnow Mayfly Diphetor hageni, (Eaton, 1885)

First collection, most recent collection, location, collector:
08/26/1991. Summit Co., Little Cuyahoga R., 40.054782, -81.440184, J DeShon.
Adams Co.
07/16/2019. Puntenney Run, 38.71226, -83.38903, MJ Bolton.
Ashland Co.
09/06/2018. Trib. Clear Fk. Mohican R., 40.610831, -82.31829. S Macy.
Ashtabula Co.
08/07/2018. Trib. Shenango R., 41.56049, -80.52975, S Macy.
Athens Co.
09/14/2018. Trib. Carbondale Cr., 39.3836, -82.2753, MJ Bolton.
Auglaize Co.
07/09/2019. Blackhoof Cr., 40.585, -84.098, C McKnight.
Belmont Co.
06/15/2016. Salt Fk. Wills Cr., 40.00074, -81.22005, MJ Bolton.
Brown Co.
07/27/2016. Fishing Gut Cr., 38.6578, -83.7436, MJ Bolton.
Butler Co.
07/29/2013. M.Fk. Paddys Run, 39.3569, -84.72101, C McKnight.
Carroll Co.
09/19/2016. Long Run, 40.4901, -81.0717, S Macy.
Champaign Co.
2013. Mad R., 40.2295. -83.7628, DH Dean.
Clermont Co.
07/26/2018. Trib. E.Fk. Miami R., 39.01003, -84.14143, C McKnight.
Coshocton Co.
08/06/2010. Beaver Run, 40.355993, -82.02122, A Dripps.
Cuyahoga Co.
08/26/2014. Chagrin R., 41.434753, -81.38593, MJ Bolton
Darke Co.
07/31/2018. Brinley Fork, 39.891716, -84.75044, S Macy.
Delaware Co.
09/06/2018. Slate Run, 40.311577, -82.94475, C McKnight.
Franklin Co.
06/24/2014. Smith Ditch, 39.8663, -83.2191, E Moore.
Gallia Co.
09/22/2016. Big Creek, 38.603102, -82.27016, C McKnight.
Geauga Co.
07/18/2019. Trib. Silver Cr., 41.45866, -81.30365, MJ Bolton.
Green Co.
07/21/2011. Yellow Spring Cr., 39.7861, -83.8778, A Dripps.
Guernsey Co.
04/16/2015. Trib. Salt Fork, 40.0049, -81.2316, MJ Bolton.
Hamilton Co.
08/06/2019. Howard Cr., 39.30483, -84.76289, E Moore.
Harrison Co.
07/17/2012. Trib. Stillwater Cr., 40.389736, -81.2568, MJ Bolton.
Highland Co.
07/18/2018. Trib. Rattlesnake Cr., 39.27337, -83.41993, MJ Bolton.
Hocking Co.
08/02/2018. Trib. Queer Cr., 39.434047, -92.54918, MJ Bolton.
Huron Co.
08/30/2016. W.Br. Huron R., 41.0211, -82.6667, C McKnight.
Jefferson Co.
09/03/2015. Trib Carter Run, 40.514297, -80.6929, L Hughes.
Knox Co.
05/16/2013. Prim. Headwaters Little Jelloway Cr., 40.4645, -82.33771, C McKnight.
Lawrence Co.
08/03/2010. Little Storms Cr., 38.59228, -82.62298, MJ Bolton.
Logan Co.
09/08/2014. Little Darby Cr., 40.282375, 83.59415, E Moore.
Mahoning Co.
08/19/2013. Meander Cr., 41.0478, -80.8275, A Dripps.
Medina Co.
01/26/2018. Johnson's Cr., 41.2165, -81.7141, DH Dean
Meigs Co.
08/18/2016. Strongs Cr., 39.0703. -82.3028, M Gray.
Miami Co.
08/05/2013. Mill Cr., 39.9225, -84.275, E Moore.
Monroe Co.
08/20/2015. Dismal Cr., 39.6664, -81.0489, L Hughes.
Montgomery Co.
08/06/2013. Trib. Stillwater R., 39.848173, -84.23807, E Moore.
Morgan Co.
06/30/2014. Trib. Bell Cr., 39.651993, -81.83424, MJ Bolton.
Muskingum
07/03/2014. White Eyes Cr., 40.073053, -81.77396, MJ Bolton.
Noble Co.
08/29/2014. S. Fk. Seneca Fork, 39.8433, -81.3175, L Hughes.
Pickaway Co.
07/31/2018. Trib. Slate Run, 39.756906, -82.84201, MJ Bolton.
Pike Co.
09/09/2011. Moore Run, 39.169782, -82.89735, J Freda.
Portage Co.
08/13/2018. Potter Cr., 41.0418, -81.2958, C McKnight.
Preble Co.
08/21/2018. Trib. Fourmile Cr., 39.57328, -84,75609, MJ Bolton.
Richland Co.
07/05/2016. W.Br. Huron R., 40.995, -82.6517, C McKnight.
Ross Co.
07/18/2018. Trib. Paint Cr., 39.26901, -83.38474, MJ Bolton.
Scioto Co.
09/12/2018. Trib. Odell Cr., 38.73588, -83.1174, MJ Bolton.
Stark Co.
09/11/2017. Sugar Cr., 40.7136, -81.6361, C McKnight.
Summit Co.
07/30/2019. Dickerson Run, 41.2184, -81.552, E Moore.
Tuscawaras Co.
06/27/2017. Beaverdam Cr., 40.4597, -81.4014, C McKnight.
Union Co.
08/20/2014. Treacle Cr., 40.123859, -83.49402, C McKnight.
Washington Co.
08/28/2018. Hog Run, 39.485903, -81.27044, MJ Bolton.
Wayne Co.
08/22/2017. Sugar Cr., 40.76, -81.6911, C McKnight.
Williams Co.
08/12/2013. Clear Fork, 41.6953, -84.6311, L Hughes.

Small Minnow Mayfly Heterocloeon (Jubilatum) sp. B (McCafferty et al, 2017)

First collection, most recent collection, location, collector:

No county specified

Small Minnow Mayfly Heterocloeon (Jubilatum) sp. D (McCafferty et al, 2017)

First collection, most recent collection, location, collector:

Hamilton Co.
05/07/2014. Trib. Great Miami R., 39.25041, -83.68828, MJ Bolton.

Small Minnow Mayfly Heterocloeon frivolium (McDunnough, 1925)

First collection, most recent collection, location, collector:

1992 Ross Co. (Scioto R., down stream from Salt Cr., RM 50.9; Randolph and McCafferty (1998)as from Ohio EPA; however, Ohio EPA now carries the taxonomy of Heterocloeon only to genus (see Heterocloeon sp above). Ohio EPA records give the following:
Ross Co.
10/08/1992. Scioto R. 0.36 mi Dws Salt Cr., 39.1872, -82.83, J DeShon.

Small Minnow Mayfly Labiobaetis dardanus (McDunnough, 2017)

First collection, most recent collection, location, collector:

First
08/16/1995 Lucas Co., Lake Erie, Maumee Bay at Dry Tree Point, 41.735, -83.45114, C McKnight.
Butler Co.
09/07/2010. Great Miami R., 39.3718, -84.5702, C McKnight.
Coshocton Co.
09/27/2017. Tuscarwars R., 40.2798, -81.8706, C McKnight.
Defiance Co.
09/07/2016. Maumee R., 41.2867, -84.4381, MJ Bolton.
Franklin Co.
09/08/2016. Scioto R., 39.9583, -83.0044, MJ Bolton.
Gallia Co.
09/08/2016. Racoon Cr., 38.8736, -82.3561. L Hughes.
Hamilton Co.
09/18/2017. Whitewater R., 39.2489, -84.8197, S Macy.
Montgomery Co.
09/10/2010. Great Miami R., 39.6744, -84.2617, C McKnight.
Paulding Co.
08/21/2012. Maumee R., 41.1839, -84.7325, M Gray.
Pickaway Co.
09/08/2016. Scioto R., 39.6016, -82.9553, S Macy.
Pike Co.
10/11/2011. Scioto R., 39.0264, -83.0433, C McKnight.
Ross Co.
09/09/2016. Scioto R., 39.3469, -82.19836, MJ Bolton.
Scioto Co.
09/08/2016. Scioto R., 39.8333, -83.0183, L Hughes.
Tuscarawas Co.
09/26/2017. Tuscarawas R., 40.2610, -8.6097, C McKnight.

Small Minnow Mayfly Procloeon rivulare (Traver, 1935)

First collection, most recent collection, location, collector:

1935. Lake C. o. Traver (1935).
Not found by Ohio EPA since 1996.

Laprairie Small Minnow Mayfly Labiobaetis frondalis (McDunnough, 2017)

First collection, most recent collection, location, collector:

First
1985 Guernsey Co.; Lawrence Co. (Pine Cr.); Noble Co. (Yoker Run), Hall (1985)

Allen Co.
09/05/2019. Auglaize R., 40.6854, -840132, C McKnight.
Ashtabula Co.
09/17/2015. Conneaut Cr., 41.9039, -80.5294, S Macy.
Athens Co.
07/30/2015. E.Br, Shade R., 39.188976, -81.91266, L Hughes.
Auglaize Co.
08/15/2019. Twomile Cr., 40.659, -84.2417, C McKnight.
Carroll Co.
09/21/2016. Scott Run, 40.4164, -81.1362, S Macy.
Champaign Co.
08/10/2015. Little Darby Cr., 40.070231, -83.53.54776, C McKnight.
Clark Co.
08/22/2011. Little Miami R., 39.8325, -83.6944, A Dripps.
Columbiana Co.
08/10/2010. Muddy Fork, 40.699749, -81.02198, D Eicher.
Coshocton Co.
07/06/2017. Morgan Run, 40.276, -81.807, C McKnight.
Darke Co.
08/27/2013. Greenville Cr., 40.1003, -84.6181, C McKnight.
Delaware Co.
07/11/2014. Prairie Run, 40.32203, -83.16781, C McKnight.
Fayette Co.
07/20/2011. Duffs Fork, 39.656461, -83.27162. C McKnight.
Franklin Co.
09/04/2014. Hellbranch Run, 39.9217, -83.1775, C McKnight.
Fulton Co.
06/28/2017. AI Cr., 39.9217, -83.9365, MJ Bolton.
Gallia Co.
08/14/2017. Indian Guyan Cr., 38.597159, -82.31897, C McKnight.
Geauga Co.
09/12/2018. W.Br. Cuyahoga R., 41.560832, -81.15644, E Moore.
Greene Co.
08/04/2011. S.Fk. Massies Cr., 39.742411, -83.80084, A Dripps.
Guernsey Co.
06/16/2015. Salt Fork Wills Cr., 40.00408, -81.2318, MJ Bolton.
Hancock Co.
08/24/2018. The Outlet (Blanchard R.), 41.0153, -83.4205, S Macy.
Hardin Co.
09/14/2014. The Outlet (Blanchard R.), 41.0208, -83.4486, MJ Bolton.
Harrison Co.
08/02/2016. Rush Run, 40.17639, -81.1354, MJ Bolton.
Henry Co.
08/19/2015. West Cr., 41.2619, -84.0367, C McKnight.
Holmes Co.
08/12/2019. Trib. Indian trail Cr., 40.58, -81.7242, E Moore.
Knox Co.
06/26/2018. Trib N.Br. Kokosing R., 40.51569, -82.58985, C McKnight.
Lucas Co.
06/27/2017. Blue Cr., 41.4956, -83.8653, MJ Bolton.
Madison Co.
09/03/2014, Sugar Run, 40.0939, -83.2503, C McKnight.
Meigs Co.
07/13/2015. W.Br. Shade R., 39.170327, -82.08151, C. McKnight.
Monroe Co.
08/11/2015. Straight Fork, 39.6289, -81.1628, C McKnight.
Morgan Co.
10/01/2013. McPherson Run, 39.51295, -81.86013, E Moore.
Noble Co.
08/14/2014. Glady Run, 39.863874, -81.34462, L Hughes.
Pickaway Co.
06/30/2014. Springwater Run, 39.80832, -83.17214, E Moore.
Portage Co.
08/14/2018. Tinkers Cr., 41.215725, -81.37301, C McKnight.
Preble Co.
10/03/2018. E.Fk. Whitewater R., 39.8439, -84.8053, MJ Bolton.
Putnam Co.
08/09/2017. Cartwright Run, 40.9932, -83.9046, MJ Bolton.
Ross Co.
08/31/2011. Deer Cr., 39.486762, -83.08381, C McKnight.
Stark Co.
08/27/2019. Tuscarawas R., 40.7656, -81.5333, E Moore.
Trumbull Co.
07/18/2013. Duck Cr., 41.195033, -80.90605, A Dripps
Tuscarawas Co.
07/27/2017. Indian Trail Cr., 40.5986, -81.6603, C McKnight.
Union Co.
08/25/2014. Buck Run, 40.159921, -83.39519, C McKnight.
Van Wert Co.
06/30/2014. Kyle Prairie Ditch, 40.928168, -84.50861, S Macy.
Washington Co.
07/23/2015. Bear Run, 39.4731, -81.2822, C McKnight.
Wayne Co.
07/18/2017. N.Fk. Sugar Cr., 40.7167, -81.6639, C McKnight.
Williams Co.
08/13/2013. N.Br. Eagle Cr., 41.6097, -84.7039, L Hughes.
Wood Co.
07/06/2017. Packer Cr., 41.487, -83.513, MJ Bolton.

Small Minnow Mayfly

Neocloeon sp. Traver, 1935

First collection, most recent collection, location, collector:

First
09/21/1992. Hocking Co., Salt Cr., 39.377416, -82.642254, MJ Bolton.
Adams Co.
08/27/2018. Trib. Little East Fork, 38.97396, -83.47791, C McKnight.
Allen Co.
08/25/2010. Little Hog Cr., 40.7678, -83.955, C McKnight.
Ashtabula Co.
08/07/2018. Trib. Senango R., 41.54943, -8052953, MJ Bolton.
Athens Co.
09/14/2018. Trib. Carbondale Cr., 39.3836, -82.2753, MJ Bolton.
Belmont Co.
06/15/2015. Salt Fk. Wills Cr., 40.00074, -81.22005, MJ Bolton.
Brown Co.
08/22/2016. E.Fk. Eagle Cr., 38.7842, -83.6981, MJ Bolton.
Butler Co.
09/21/2017. Dry Fk. Whitewater R., 39.3269, -84.7486, S Macy.
Carroll Co.
09/20/2016. N.Fk. McGuire Cr., 40.5192, -81.0622, S Macy.
Champaign Co.
07/16/2018. Trib. Mosquito Cr., 40.18939, -83.97834, C McKnight.
Clark Co.
08/10/2011. Little Miami R., 39.805, -83.6472, A Dripps.
Clermont Co.
07/25/2018 . Trib. E.Fk. Little Miami R., 39.03328, -84.12769, C McKnight.
Clinton Co.
07/28/2011. Buck Run, 39.5456, -83.9586, A Dripps.
Coshocton Co.
09/25/2017. Evans Cr., 40.29, -81.683, C McKnight.
Crawford Co.
08/18/2016. S.Fk. Loss Cr., 40.850796, -82.79261, M Gray.
Cuyahoga Co.
07/30/2019. Sagamore Cr., 41.3514, -81.5923, E Moore.
Darke Co.
07/03/2017. Middle Fk. E. Fk. Whitewater R., 39.986225, -84.80429, S Macy.
Defiance Co.
08/30/2016. Middle Fk. Gordon Cr., 41.295, -84.7281, E Moore.
Delaware Co.
07/06/2018. Slate Run, 40.311577, -82.94475, C McKnight.
Fairfield Co.
08/-1/2016. Fetters Run, 39.729764, -82.58412, M Gray.
Fayette Co.
07/20/2011. Duffs Fork, 39.656461, -83.27162, C McKnight.
Gallia Co.
08/17/2017. Indian Guyan Cr., 38.597159, -82.31897, C McKnight.
Geauga Co.
05/23/2019. Trib. Silver Cr., 41.4564, -81.328, MJ Bolton.
Green Co.
09/21/2011. Little Miami R., 39.6158, -84.0267, M Gray.
Guernsey Co.
06/16/2015. Salt Fk. Wills Cr., 40.00408, -81.12318, MJ Bolton.
Hamilton Co.
08/23/2018. Trib. Dry Fk. Whitewater R., 39.25272, -84.75945, C McKnight.
Hardin Co.
09/14/2017. The Outlet, Blanchard R., 41.0208, -83.4486, MJ Bolton.
Harrison Co.
09/20/2016. Kirby Run, 40.4317, -81.085, S Macy.
Henry Co.
09/22/2015. Wade Cr., 39.3114, -84.1506, E Moore.
Highland Co.
07/18/2018. Trib. Rattlesnake Cr., 39.27106, -84.41065, MJ Bolton.
Hocking Co.
09/25/2019. Spruce Run, 39.452569, -82.5993, MJ Bolton.
Holmes Co.
08/12/2019. Trib. Indian Trail Cr., 40.58, -8.7242, E Moore.
Huron Co.
08/30/2016. W.Br. Huron R., 41.0211, -82.6667, C McKnight.
Jackson Co.
09/09/2016. Meadow Run, 39.1156, -82.5156, M Gray.
Jefferson Co.
09/03/2015. Carter Run, 40.514283, -80.688, MJ Bolton.
Knox Co.
08/30/2018. Trib. N.Br. Kokosing R., 40.50442, -82.58896, C McKnight.
Lake Co.
08/08/2018. Trib. Arcola Cr., 41.77196, -81.40587, C McKnight.
Lawrence Co.
06/19/2017. Miller Cr., 38.754765, -82.52464, E Moore.
Licking Co.
10/17/2017. Quarry Run, 39.969217, -82.39423, S Macy.
Logan Co.
09/08/2014. Little Darby Cr., 40.282375, -83.59415, E Moore.
Lorain Co.
08/19/2015. Brownhelm Cr., 41.419654, -82.28295, S Macy.
Lucas Co.
08/16/2011. Ottawa R., 41.691025, -83.67374, M Gray.
Madison Co.
08/26/2011. Bradford Cr., 39.748661, -83.32522, C McKnight.
Mahoning Co.
09/03/2013. Mill Cr., 40.8991, -80.6903, A Dripps.
Medina Co.
07/06/2016. Trib. E.Br. Rocky R., 41.207789, -81.71401, S Macy.
Meigs Co.
08/18/2016. Strongs Run, 39.0703, -82.3028, M Gray.
Miami Co.
08/19/2013. Greenville Cr., 40.1142, -84.4028, E Moore.
Monroe Co.
09/09/2015. Little Muskingum R., 39.5936, -81.1547, L Hughes.
Montgomery Co.
08/22/2013. Stillwater R., 39.87405, -84.2915, E Moore.
Morgan Co.
10/02/2013. Peeper Run, 39.678215, -82.00336, MJ Bolton.
Muskingum Co.
09/25/2014. White Eyes Cr., 40.134658, -81.73598, L Hughes.
Noble Co.
08/28/2018. Trib. Wolf Run, 39.8053, -81.5158, MJ Bolton.
Pickaway Co.
09/02/2014. Big Darby Cr., 30.7008, -83.1097, C McKnight.
Pike Co.
08/16/2016. Long Run, 39.038386, -83.24103, MJ Bolton.
Portage Co.
08/28/2018. Breakneck Cr., 41.1394, -81.2708, C McKnight.
Preble Co.
10/03/2018. E.Fk. Whitewater R., 39.8439, -84.8053, MJ Bolton.
Ross Co.
08/29/2011. Walnut Cr., 39.330906, -82.8444, J Freda.
Scioto Co.
09/08/2016. Scioto R., 39.8333, -83.0183, L Hughes.
Stark Co.
08/08/2017. Fox Run, 40.868, -81.611, C McKnight.
Summit Co.
09/06/2018. Furnace Run, 41.201516, -81.57335, C McKnight.
Trumbull Co.
09/10/2013. Mahoning R., 41.2361, -80.8208, A Dripps.
Tuscarawas Co.
07/25/2017. Lick Run, 40.29, -81.605, C McKnight.
Union Co.
09/08/2014. Spain Cr., 40.228799, -83.52309, E Moore.
Vinton Co.
07/31/2017. Hewett Fork, 39.304465, -82.32265, C McKnight.
Warren Co.
09/19/2011. Little Miami R., 39.5247, -84.0878, M Gray.
Washington Co.
08/28/2018. Hog Run, 39.485903, -81.27044, MJ Bolton.
Wayne Co.
07/18/2017. N.Fk. Sugar Cr., 40.7167, -81.6639, C McKnight.
Williams Co.
09/26/2013. St. Joseph R., 41.4892, -84.7306, L Hughes.

Rock Island Small Minnow Mayfly Labiobaetis propinquus (Walsh, 1863)

First collection, most recent collection, location, collector:

First
1985 Hocking Co. (Spruce Run); Scioto Co. (Turkey Cr.); Hall (1985)

1998 Adams Co. (Beech Fork, Cassell Run, Turkey Run); Ross Co. (Ralston Cr.); OEPA.
Ashtabula Co.
09/15/2015. Conneaut Cr., 41.901902, -80.65283, S Macy.
Athen Co.
07/27/2017. Hewett Fk, 39.3175, -82.2781, C McKnight.
Carroll Co.
09/20/2016. Trib to Conotton Cr., 40.4819, -81.2542, S Macy.
Champaign Co.
08/19/2014. Spring Fk., 40.044182, -83.54193, E Moore.
Clermont Co.
08/15/2012. E.Fk. Little Miami R., 39.060052, -84.17874, E Moore.
Columbiana Co.
08/10/2010. Sandy Cr., 40.744433, -81.08156, D Eicher.
Coshocton Co.
09/27/2017. W.Fk. White Eyes Cr., 40.3314, -81.7431, C McKnight.
Cuyahoga Co.
08/26/2014. Chagrin R., 41.440453, -81.37843, MJ Bolton.
Darke Co.
08/02/2017. E.Fk. Whitewater R., 39.9392, -84.7719, S Macy.
Fairfield Co.
06/25/2014. Baldwin Run, 39.71543, -82.58047, MJ Bolton.
Franklin Co.
10/05/2015.Big Walnut Cr., 39.8678, -82.0317, L Hughes.
Fulton Co.
08/25/2015. Bad Cr., 41.617937, -84.04735, C McKnight.
Gallia Co.
08/01/2017. Symmes Cr., 38.7672, -82.4369, E Moore.
Geauga Co.
08/27/2018. Baldwin Run, 39.71543, -82.58047, MJ Bolton.
Greene Co.
06/21/2013. S.Br. Caesar Cr., 39.8678, -82.9317, L Hughes.
Guernsey Co.
09/18/2014. Wills Cr., 40.168242, -81.64863, L Hughes.
Hardin Co.
07/07/2011. Scioto R., 40.6372, -83.5733, J Freda.
Harrison Co.
09/20/2016. Kirby Run, 40.4317, -81.085, S Macy.
Hocking Co.
07/12/2017. W.Br. Raccoon Cr., 39.4197, -82.4692, C McKnight.
Holmes Co.
08/24/2017. Middle Fk. Sugar Cr., 40.6406, -81.6756, C McKnight.
Jackson Co.
09/07/2016. Little Raccoon Cr., 39.0094, -82.445, M Gray.
Jefferson Co.
08/11/2011. Yellow Cr., 40.5379, -80.725, J Freda.
Lake Co.
09/03/2014. Chagrin R., 41.57645, -81.41564, MJ Bolton.
Lawrence Co.
06/20/2017. Buffalo Cr., 38.7508, -82.5575, C McKnight.
Madison Co.
08/19/2014. Spring Fork, 40.4076, -83.4414, E Moore.
Medina Co.
07/28/2015. Chippewa Cr., 41.099, -81.92, MJ Bolton.
Meigs Co.
08/18/2016. Strongs Run, 39.0703, -82.3028, M Gray.
Monroe Co.
09/09/2015. Little Muskingum R., 39.6339, -81.0678, L Hughes.
Morgan Co.
09/12/2013. Perry Run, 39.602973, -81.71626, E Moore.
Muskingum Co.
09/25/2014. White Eyes Cr., 40.134658, -81.73598, L Hughes.
Noble Co.
08/04/2014. S.Fk. Buffalo Cr., 39.812315, -81.46906, L Hughes.
Pickaway Co.
09/05/2014. Big Darby Cr., 39.6778, -83.0964, C McKnight.
Pike Co.
09/21/2011. Scioto R., 39.111, -82.9686, C McKnight.
Portage Co.
09/14/2017. Cuyahoga R., 41.2926, -81.22, MJ Bolton.
Ross Co.
09/19/2011. Scioto R., 39.2122, -82.8647, J Freda.
Scioto Co.
09/08/2016. Scioto R., 38.8333, -83.0183, L Hughes.
Stark Co.
08/28/2019. Tuscarawas R., 40.8069, -81.5272, E Moore.
Trumbull Co.
09/19/2013. Mahoning R., 41.2439, -80.865, A Dripps.
Tuscawaras Co.
09/28/2017. Tuscarawas R., 40.655, -81.4453, MJ Bolton.
Union Co.
08/18/2014. Little Darby Cr., 40.1158, -83.425, E Moore.
Vinton Co.
07/13/2017. Elk Fork, 39.2467, -82.4602, C McKnight.
Washington Co.
09/23/2015. Little Muskingum R., 39.4481, -81.3364, L Hughes.
Wayne Co.
08/08/2017. Chippawa Cr., 40.9325, -81.6853, C McKnight.
Williams Co.
09/26/2013. St. Joseph R., 41.5192, -84.6975, MJ Bolton.
Wood Co.
07/05/2017. Cedar Cr./Wars Canal, 41.525126, -83.53838, MJ Bolton.

Small Minnow Mayfly Paracloeodes fleeki (McCafferty & Lenat, 2003)

First collection, most recent collection, location, collector:

First
08/26/1987. Butler Co. Dicks Cr., 39.39.4736, -84.3667, MJ Bolton.
Butler Co.
09/14/2016. Great Miami R., 39.4814, -84.4428, MJ Bolton.
Clermont Co.
08/23/2012. E.Fk. Little Miami R., 30.0964, -84.0403, J Freda.
Darke Co.
09/03/2013. Swamp Cr., 40.27, -84.4672, C McKnight.
Defiance Co.
09/19/2013. Mud Cr., 41.3503, -84.4381, MJ Bolton.
Franklin Co.
09/01/2010. Walnut Cr., 39.8278, -82.8914, E Moore.
Fulton Co.
08/26/2013. Bean Cr., 41.677867, -84.231875, MJ Bolton.
Gallia Co.
09/07/2016. Rocky Fk. Indian Guyan Cr., 38.643025, -82.28901, C McKnight.
Green Co.
09/13/2011. Caesar Cr., 39.5992, -83.9647, A Dripps.
Hamilton Co.
10/04/2018. Whitewater R., 39.1831, -84.7928, MJ Bolton.
Lawrence Co.
09/26/2016. Watson Cr., 39.591664, -82.379888, C McKnight.
Meigs Co.
09/22/2015. W.Br. Shade R., 39.135599, -81.997241, C McKnight.
Montgomery Co.
09/13/2016. Great Miami R., 39.6744, -84.2617, E Moore.
Ross Co.
09/01/2011. Scioto R., 39.2519, -82.905, C McKnight.
Scioto Co.
08/23/2010. Pine Cr., 38.653378, -82.80239, MJ Bolton.
Tuscarawas Co.
09/12/2017. E.Br.S.Fk. Sugar Cr., 40.5092, -81.6144, C McKnight.
Warren Co.
9/19/2011. Little Miami R., 39.5164, -84.0933, A Dripps.
Williams Co.
09/17/2013. Tiffin R., 41.5728, -84.3372, MJ Bolton.

Small Minnow Mayfly Paracloeodes minutus (Daggy, 1945)

First collection, most recent collection, location, collector:

First
09/21/1992. Vinton Co., Salt Cr., 39.2853, -82.7442, MJ Bolton.
Allen Co.
09/06/2019. Auglaize R., 40.6458, -84.0719, A Dripps.
Athens Co.
09/08/2015. Middle Br. Shade R., 39.196476, -81.97426, C McKnight.
Auglaize Co.
09/09/2019. Auglaize R., 40.66.81, -84.2717, C McKnight.
Butler Co.
09/09/2010. Great Miami R., 39.4814, -84.4428, C McKnight.
Clermont Co.
08/23/2012. E.Fk. Little Miami R., 39.0964, -84.0403, J Freda.
Coshocton Co.
09/27/2017. Tuscarawas R., 40.2989, -81.8706, C McKnight.
Cuyahoga Co.
09/12/2017. Cuyahoga R., 41.3567, -81.5961, C McKnight.
Defiance Co.
09/24/2013. Maumee R., 41.2906, -84.2444, L Hughes.
Fulton Co.
08/27/2013. Bean Cr., 41.6231, -84.2961, MJ Bolton.
Gallia Co.
09/08/2016. Raccoon Cr., 38.9378, -82.3392, MJ Bolton.
Green Co.
09/21/2011. Little Miami R., 39.6157, -84.0292, M Gray.
Hamilton Co.
09/25/2017. Dry Fk Whitewater R., 39.193334, -84.77936, S Macy.
Lawrence Co.
08/24/2016. Indian Guyan Cr., 38.457089, -82.40426, C McKnight.
Madison Co.
08/24/2011. Deer Cr., 39.788661, -83.30162, C McKnight.
Montgomery Co.
09/13/2016. Grat Miami R., 39.6744, -83.2617, E Moore.
Paulding Co.
09?13/2017. Little Auglaize R., 41.4086, -84.3889, MJ Bolton.
Pickaway Co.
09/08/2016. Scioto R., 39.6014, -82.9553
Portage Co.
09/12/2017. Cuyahoga R., 41.1494, -81.3675, C McKnight.
Putnam Co.
09/07/2016. Auglaize R., 41.0208, -83.2889, S Macy.
Ross Co.
09/09/2016. Scioto R., 39.3469, -82.9836, MJ Bolton.
Scioto Co.
09/21/2011. Scioto R., 39.9386, -83.0325, C McKnight.
Summit Co.
09/12/2017. Cuyahoga R., 41.1492, -81.4567, C McKnight.
Tuscawaras Co.
09/28/2017. Tuscarawas R., 40.655, -81.4453, MJ Bolton.
Warren Co.
09/14/2016. Great Miami R., 39.5631, -84.305, C McKnight.
Williams Co.
09/17/2013. Tiffin R.;, 41.546853, -84.39104, MJ Bolton.

Band-Bellied Small Minnow Mayfly Plauditus, cestus (Provonsha & McCafferty, 1982)

First collection, most recent collection, location, collector:

First
09/18/2013. Portage Co., Sand Cr., 41.212, -81.0428, M Gray
Hamilton Co.
09/18,19/2017. Whitwater R., 39.2094, -84.7931; 39.2489, -84.8197; Dry Fk. Whitewater R., 39.234129, -84.76307, S Macy
Washington Co.
09/11/2013. Coal Run, 39.45972, -81.82308, E Moore.

Dubious Small Minnow Mayfly Plauditus, dubius (Walsh, 1862)

First collection, most recent collection, location, collector:

First
09/11/1991. Lake Co., Grand R., 41.7136, -81.2269, Ohio EPA Biologist.
Adams Co.
07/12/2016. Lower Twin Cr., 38.67867, -83.310233, MJ Bolton
Ashtabula Co.
09/17/2015. Conneaut Cr., 41.9039, -80.5294, S Macy.
Butler Co.
09/14/2016. Great Miami R., 39.4814, -84.4428, MJ Bolton.
Coshockton Co.
09/27/2017. Tuscarawas R., 40.2789, -81.7106, C McKnight.
Darke Co.
08/19/2013. Greenville Cr., 40.183, -84.4992, E Moore.
Defiance Co.
09/07/2016. Maumee R., 41.2867, -84.44381, MJ Bolton.
Delaware Co.
09/01/2016. Olentangy R., 40.257383, -83.062031, MJ Bolton.
Erie Co.
08/25/2016. Huron R., 41.2908, -82.6375, C McKnight.
Franklin Co.
09/08/2016. Scioto R., 39.9583, -83.0044, MJ bolton
Gallia Co.
08/31/2016. Raccoon Cr., 38.7839, -82.2819, M Gray.
Hamilton Co.
10/03/2018. Whitewater R., 39.1831, -84.7928, MJ Bolton.
Henry Co.
09/06/2016. Maumee R., 41.3206, -84.2, C McKnight.
Huron Co.
0921/2016. W.Br. Huron R., 41.2867, -82.6428, C McKnight.
Lake Co.
09/20/2017. Grand R., 41.7261, -81.2383, MJ Bolton.
Lawrence Co.
06/20/2017. Buffalo Cr., 38.7508, -82.5575, C McKnight.
Lucas Co.
09/06/2016. Maumee R., 41.5, -83.7128, S Macy.
Meigs Co.
07/13/2015. W.Br. Shade R., 39.170327, -82.081507, C McKnight.
Monroe Co.
07/23/2015. Town Fork, 39.7089, -81.1553, L Hughes.
Montgomery Co.
09/13/2016. Great Miami R., 39.6406, -84.2922, C McKnight.
Pickaway Co.
09/08/2016. Scioto R., 39.6014, -82.9553, S Macy.
Pike Co.
08/16/2016. Long Run, 39.038386, -83.241028, MJ Bolton.
Scioto Co.
09/08/2016. Scioto R., 38.8333, -83.0183, L Hughes.
Tuscarawas Co.
09/28/2017. Tuscarawas R., 40.6092, -81.4286, C McKnight.
Vinton Co.
07/13/2017. Elk Fork, 39.2467, -82.4601, C McKnight.
Warren Co.
09/14/2016. Great Miami R., 39.5631, -84.305, C McKnight.
Washington Co.
07/16/2015. Mill Fork, 39.496505, -81.307797, L Hughes.

Glover's Small Minnow Mayfly Plauditus gloveri (McCafferty Waltz, 1998)

First collection, most recent collection, location, collector:

Listed by Ohio EPA but location not specified. Not in Randolph and McCafferty (1998).

Small Minnow Mayfly Plauditus, veteris (Lugo Ortiz & McCafferty, 1998)

First collection, most recent collection, location, collector:

1985. Guernsey Co., Monroe Co., Washington Co., Hall (1985)
1998. Athens Co., Green Run, Ohio Biol. Survey.
Not reported by Ohio EPA.
Larvae are unknown.

Small Minnow Mayfly Plauditus, virilis (McDunnough, 1923)

First collection, most recent collection, location, collector:

First
05/16/1994. Meigs Co., Leadiing Cr., 39.012878, -82.137967, J DeShon.
Ashtabula Co.
09/15/2015. Conneaut Cr., 41.9271, -80.6043, S Macy.
Fayette Co.
07/20/2011. Duffs Fk., 39.656461, -83.271615, C McKnight.
Hocking Co.
07/12/2017. W.Br. Raccoon Cr., 39.4197, -82.4692, C McKnight.
Meigs Co.
07/13/2015. W.Br. Shade R., 39.170327, -82.081507, C McKnight.
Monroe Co.
07/13,14/2015. Wolfpen Run, 39.68723, -81.14309; Willison Run, 39.71679, -81142563; Rias Run, 39.6419, -812125, L Hughes.

Small Minnow Mayfly Heterocloeon curiosum (McDunnough, 1935)

First collection, most recent collection, location, collector:

Reported from Ohio by Randoph and McCafferty (1998) as from Ohio EPA, 1983, Belmont Co., N.Fk. Captina Cr.; however, Ohio EPA now carries the taxonomy of Heterocloeon only to genus (see Heterocloeon sp above). Ohio EPA records gives the following:
Belmont Co.
09/27/1983. N.Fk. Captina Cr., 39.9339, -81.1069, J Freda.

Small Minnow Mayfly Procloeon rubropictum (McDunnough, 1923)

First collection, most recent collection, location, collector:

1935. Lake Co., Traver (1935)
1985. Guernsey Co., Hall (1985).
1998. Adams Co., Lick Fork Ohio Brush Cr. Ohio Biol. Survey.
Not found by Ohio EPA since 1996.

Small Minnow Mayfly Pseudocentroptiloides usa (Waltz & McCafferty, 1940)

First collection, most recent collection, location, collector:

1993 Green Co. (S. Branch Caesar Cr at Hoop Rd.); Miami Co. (Trib. Honey Cr, E. of Tipp City); VII-29-1993; Armitage, Ohio Biol. Survey (Adults); VII-13-1996; Armitage (Adults)
Not reported by Ohio EPA.

Small Minnow Mayfly Heterocloeon sp. (McCafferty et al, 2017) Data from Ohio EPA files; may be any Heterocloeon in McCafferty et al., 2017.

First collection, most recent collection, location, collector:

First
09/27/1983. Belmont Co. N.Fk. Captina Cr., 39.9339, -81.1069, J Freda.
Clermont Co.
08/16/2012. E.Fk. Little Miami R., 39.118808, -84.20908, E Moore.
Coshocton Co.
08/09/2016. Tuscarawas R., 40.2856, -81.6844, MJ Bolton.
Muskingum Co.
Wakatomika Cr., 40.1311, -82.1461, E Moore.
Ross Co.
08/06/2006. Buckskin Cr., 39.2369, -83.2767, C McKnight.

Small Minnow Mayfly, Anafroptilum minor group sp. 1, (McDunnough, 1926)

First collection, most recent collection, location, collector:

First
06/26/2014. Noble Co., N.Fk. Buffalo Cr., 39.841262, -81.504906, L Hughes.
Athens Co.
08/15/2016. Hewett Fork., 39.31755, -82.2718, M Gray..
Carroll Co.
09/20/2016. N.Fk. McGuire Cr., 40.5134, -81.0855, S Macy.
Gallia Co.
08/14/2017. Indian Guyan Cr., 38.597159, -82.31897, C McKnight.
Geauga Co.
08/27/2018. W.Br., Cuyahoga R., 41.4878, -81.1743, C McKnight.
Guernsey Co.
09/12/2014. Birds Run, 40.1692, -81.6481, C McKnight.
Harrison Co.
09/20/2016. Kirby Run, 40.4317, -81.085, S Macy.
Jackson Co.
08/06/2016. Little Raccoon Cr., 39.0106, -82.45522, M Gray.
Lawrence Co.
07/03/2017. Little Indian Guyan Cr., 38.581354, -82.37699, C McKnight.
Meigs Co.
09/22/2015. W.Br. Shade R., 39.135599, -81.99724, C McKnight.
Monroe Co.
09/09/2015. Clear Fork, 39.6035, -811628, L Hughes.
Noble Co.
08/29/2014. Buffalo Cr., 39.823781, -81.48717, L Hughes.
Scioto Co.
09/08/2016. Scioto R., 38.8333, -83.0183, L Hughes
Vinton Co.
07/31/2017. Hewett Fork, 39.304465, -82.32265, C McKnight.
Washington Co.
09/23/2015. Little Muskingum R., 39.4481, -81.3364, L Hughes.

Small Minnow Mayfly, Anafroptilum minor group sp. 2, Anafroptilum victoriae (McDunnough, 1926)

Most recent collection, location, collector:

Anafroptilum minor group sp. 2 (McDunnough, 1926)
07/12/2016. Adams Co., Lower Twin Cr., 38.648128, -83.273903, MJ Bolton.

Anafroptilum victoriae (McDunnough, 1926)
07/13/2018. Portage Co. Trib. Cuyahoga R., 41.2753, -81.2215, MJ Bolton.