This wild-looking little thing completely puzzled me. At first I was thinking beetle or month larva, until I got a look at the pictures on the computer screen. I made a couple of incorrect guesses before entomologist Greg Courtney pointed me in the right direction with Psychodidae. He suggested a possible genus of Thornburghiella, but could not rule out some other members of the tribe Pericomini.
Swisher and Richards were the first to discover important hatches of this species on a trout stream. They found it in a major Montana river and reported it in Selective Trout.
In 4 records from GBIF, adults of this species have been collected during September (75%) and August (25%).