The larvae of Limnephilus hyalinus, L. moestus, L. ornatus, and L. perpusillus are not clearly distinguished.
1. Pronotum with anterior half brown and posterior half yellow; case of transverse or irregularly arranged plant materials. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Pronutum entirely brown (Fig. 1.2); case of longitudinal plant materials. . . . . . . . . . . . . . . . . 3
2. Dark central stripe of frontoclypeus nearly filling sclerite, without pale spot on anteromesal margin; temporaly and semipermanent woodland ponds and marshes. Limnephilus indivisus
Dark central stripe of frontoclypeus narrower, often with wide pale spot on anteromesal margin; slowly flowing streams that are springfed and overgrown. . . . . . . . . Limnephilus rhombicus
3. Posterior clusters of gills of dorsal and ventral rows each reduced to single filament (Fig. 1.3), with dorsal row continuing to anterior tergum VII; muscle scars of head, thorax, and legs distinct (Fig. 1.4). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Limnephius submonilifer
Posterior clusters of gills of dorsal and venrtral rows mostly double, with dorsal row continuing to anterior tergum VIII; muscle scars of head, thorax and legs indistinct; possibly temporary pools. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Limnephilus sericeus
*Ohio EPS lists the Limnephilus species as L. sp 1 and L. sp 2.
Key to Species of Limnephilus Nymphs*
