Nashua, Hillsborough County, New Hampshire, USA May 9, 2006 Size: 9.2 mm
Based on descriptions and habitats in American Beetles, I have concluded this is Boris unicolor. The genus is distinguished by a sharply constricted head behind the eyes. Of the two species in the bugguide region, the other lives as larvae primarily in fire-killed conifers, and these individuals were found in conifers that had died from causes other than fire. Moreover, the coloration fits the species name.
I kept waiting for this beetle to grown completely black before posting photos. Ha! I should have refreshed my memory from American Beetles. Borids are supposed to be brown :-)
One more of my original larvae collected March 18, 2006 has pupated. The others have died at various stages, one at the prepupal stage.
Contributed by Jim McClarin on 14 May, 2006 - 7:33pm Last updated 7 September, 2011 - 6:11pm
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