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Photo#460592
Hydrophilidae - Berosus
Copyright © 2010 margarethe brummermann

Hydrophilidae - Berosus
Molino Basin, Pima County, Arizona, USA
September 29, 2010
Size: 6 mm
Contributed by margarethe brummermann on 1 October, 2010 - 11:27am
Last updated 4 October, 2010 - 1:41am

Moved
Moved from ID Request.
… margarethe brummermann, 4 October, 2010 - 1:41am

Berosus
hard to key out without detailed shots of various parts of underside (metasternal plate, terminal abdominal segments). The pronotal markings may be unique for this species, but several have paired dark maculae. In 1963, van Tassell did a key to the AZ species (Coleopterists Bulletin).
… Blaine Mathison, 1 October, 2010 - 1:03pm

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