Ohio Caddisflies

Larvae

1.            Pair of dorsal setae present on abdominal segment 8; ventral pair of medial setae on                 abdominal segment 8 raised on tubercles and only slightly closer together than those on                 segment 9; small acute spines at bases of thoracic setae. . . . . . . Climacia areolarsis

                Pair of dorsal setae absent on abdominal segment 8; pair of ventral medial setae on                 abdominal segment 8 sessile and distinctly closer together than those on segment 9; small                 acute spines at bases of thoracic ssetae absent. . . . . . . . . . . . . . . . . . . . . . . Sisyra sp.

Pupae

1.             Segments of labial palp similar. . . . . . . . . . . . . . . . . . . . . . . . . Climacia areolarsis

                Last palpal segment of labium greatly enlarged and triangular. . . . . . . . . Sisyra sp.

Adults

1.             Rs of fore wing with one fork before pterostigmata; fore wing with brown markings; last                 segment of labial pallp similar in size and shape to other segments. . . . . . . . . . . . . . . . . .                 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Climacia aerolarsis

                Rs of fore wing with more than one fork before pterostigmata; fore wing uniformly brown;                 last segment of labial palp greatly enlarged and triangular in shape. . . . . . . . . Sisyra sp.

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This webpage is created and maintained by Don Dean, Professor Emeritus of Biochemistry and Entomology, The Ohio State University. Please contact me with comments, questions about "Stoneflies of Ohio" or to report new findings. troutman4209@gmail.edu