Eighty species or so listed in North America.

   Hydropsyche is easily distinguished from it's close relative Ceratopsyche because of it's larger size, and darker color.

   Like all other Hydropsychidae, H. recurvata larva build nets to trap food drifting in the current. Their diet consist of debris, and smaller insects. H recurvata prefer large rivers, the large upper Delaware makes it feel right at home.

   Hydropsyche larvae don't build cases, but build a retreat near their nets camouflaged with small gravel, sand, and plant debris. During the final growth period, or instar they seal themselves inside their retreat where pupation takes place.

   Hydropsyche produce huge evening mating, and egg laying flights, with large clouds of insects. C. morosa may be present during these activities.

   Key to Family - Ocelli absent. Legs - spurs foreleg 2, middle 4, hind 4. One large wart on scutellum. Both male and female maxillary palps are five segmented, segment five is long, flexible, and whip like.

   Key to Genus - Forewings - veins R4 and R5 separateing quickly at their base, crossveins M3+4-Cu1 and Cu1-Cu2 located far apart, veins Cu2 and A of are joined at or before costal margin. Stems of M and Cu veins of hindwing running close together, and parallel throughout their length.

   Key to Species - H. recurvata - Apex of phallic apparatus split or bilobed in dorsal, and ventral view. Sclerites are slender and curved up from the mid line of the phallus. Modified from, F. Schmid - 1998 - The Insects and Arachnids of Canada Part 7 Genera of the Trichoptera of Canada and Ajoining United States.