“Aquatic Caterpillars, Snout Moths”
“Alderflies, Dobsonflies, and Fishflies”
“Dragonflies and Damselflies”
Located in riffles this predatory stonefly whose diet has been well studied, tend to feed off chironomids, hydropsychids, mayflies and black flies. Identification to species as larvae is difficult and several studies have been found to erroneously report findings based on mixed species.
Engulfer / Predator
Widespread (east of the Rocky Mtns.)
Two Tarsal Claws
Glossae Shorter Than Paraglossae
Posterior Spinule Fringe
+ Expanded Character List
Order: Wings developing in wing pads. Mouthparts suitable for chewing. Gills digitiform and located near mouthparts, on neck, sides of thorax, or underside of base of abdomen, never on top or sides of abdomen. Two tarsal claws per leg. Only two tails (cerci).
Family: Glossae much shorter than the paraglossae. Multi-branched, filamentous gills present laterally and ventrally on thorax, but not on abdomen.
Genus: Cerci without a long setal fringe, Three ocelli on the head, Occipital Ridge present, regular set of spinules completely across back of head inserted on ridge,