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small diver - Hydrocanthus

small diver - Hydrocanthus
Bentonville, Benton County, Arkansas, USA
July 16, 2015


Moved from Beetles.

Pretty much has to be Suphisellus bicolor.

I would guess around 4 mm

I am not aquatics specialist tho, for what it's worth

Spoke too soon
At ~4 mm, it's more likely to be Hydrocanthus atripennis. I found this species and S. bicolor in roughly equal numbers during my Arkansas field work. Unfortunately the diagnostic characters can't really be seen in this photo.


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