This one was surprisingly straightforward to identify. The lack of a sclerite at the base of the lateral hump narrows the field quite a bit, and the other options followed fairly obvious characteristics to Clostoeca, which only has one species, Clostoeca disjuncta.
Where were these collected - the larvae also look like some of the eastern Pycnopsyche species. Also how large are the larvae? The adult is not a caddis, the antennae are too short for something that size. It is one of the megalotera.
CenCaAngler on Jul 25, 2015July 25th, 2015, 1:17 am EDT
The larvae (approx. 1"-2" with dark brown/black heads and what appeared to be lighter, cream-colored abdomens) were collected from submerged boulders along the banks of the river as well as on rocks positioned between the seams of faster and slower moving water. Any more input or helpful advice and information would be/is greatly appreciated.
Creno on Jul 25, 2015July 25th, 2015, 11:09 am EDT
Sorry, poorly worded question on my part. What Country/State/Province were these collected in? If I presume CA from your response on the Megaloptera The middle larvae doesn't look as burly as the other two so if may be a species of Psychoglypha.