Morse (1993) listed twenty-six species in North America (Moulton & Johnson 1996).

   Ceratopsyche larvae spin silk into nets not unlike a spider spins a web to collect insects.

   Ceratopsyche feed upon plant particles, smaller insects, and debris collected in their nets from the flowing water.

   Ceratopsyche larvae don't build cases, but build a retreat near their nets camouflaged with small gravel, and plant debris.

   C. morosa produces large hatches from mid May to mid June. During the hatch adults swim, or more like run very quickly to the rivers surface. Time spent floating on the surface is directly related to the weather conditions, cold rainy days delay their flight, but on sunny warm days C. morosa takes flight very quickly. Unlike their close relative C. campyla bad weather doesn't seem to effect either hatching or egg laying activity.

   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 ending separately, but close together. Stems of M and Cu veins of hindwing running close together, and parallel throughout their length.

   Key to Species C. morosa - Male, with C. morosa there may be difficulty determining species. Sclerites can range from small to large. Not protruding below the phallobase or may be protruding a bit below the phallobase. This seems to depend on the size of the sclerites and how the phallus happens to be held at the time of examination. The key here seems to be the shape of the sclerites. Sclerites of C. morosa are flat, and lanceolate. Modified from, Moulton and Johnson - 1996 - Interior Highlands Trichoptera Memoirs of the American Entomological Institute 56.