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Photo#668236
Psephenus herricki

Psephenus herricki
Pitman Creek, Pulaski County, Kentucky, USA
June 30, 2012
Size: 5 mm
Scores of these were at the waterline in a shaded area. I'm not sure if they were just feeding on the algae there or if it was a mating aggregation.

I'm assuming P. herricki is the only eastern species?

Psephenus herricki
Nice. Yes, P. herricki is the only eastern species. You have to get down to Texas to pick up a different species. I often find Psephenus falli out here in much the same situation as yours -- right at the waterline. I think the placement also might have something to do with pupation sites as I will often capture both larvae and adults while dipnetting. I usually don't pick up pupae this way, but I suspect they are either wedged into crevices or attached very securely to rocks.

 
Thks Brady

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