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Home » Guide » Arthropods (Arthropoda) » Hexapods (Hexapoda) » Insects (Insecta) » Beetles (Coleoptera) » Polyphaga » Series Elateriformia » Byrrhoidea » Water Penny Beetles (Psephenidae)
Photo#1478719
water-penny beetle larva
Copyright © 2017 Adam Schneider

water-penny beetle larva
Middle Fork John Day River, elevation 2800', Grant County, Oregon, USA
August 20, 2017
Found this critter crawling around on a piece of fabric that was submerged along the edge of the stream. Is it Eubrianax edwardsii or Psephenus falli? (Is there even any sure way to tell?)
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Contributed by Adam Schneider on 23 December, 2017 - 12:58pm
Last updated 22 January, 2018 - 6:01am

Moved, water penny
Moved from ID Request.
… Blaine Mathison, 22 January, 2018 - 6:01am login or register to post comments

a shot of the venter would help
general shape looks more like Psephenus
… J. H. Epler, 27 December, 2017 - 9:03am login or register to post comments

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