Heterocerus fenestratus
Family: Heteroceridae
Size: 4.5 mm (3.0 to 4.5 mm)
Origin: Europe
Ecology: Larvae and beetles live in dug tubes on banks of waters
Location: Germany, Bavaria, Upper Franconia, Rudolphstein/Pottiga, Saale river
leg.det. U.Schmidt, 1.V.2000
Photo: U.Schmidt, 2015

Heterocerus fenestratus  (Flickr)