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Red underbark rove - Atrecus megacephalus

Red underbark rove - Atrecus megacephalus
Mt. Washington, Coos County, New Hampshire, USA
July 5, 2007
Size: about 6.5 mm
I found a good half-dozen of these rove beetles under bark during my Forest Service-approved search for Py*tho str*ictus. They stood out among the usually dark-colored rove beetles I encountered. Same species as this one.

Moved from Rove Beetles.

Xantholini: Atrecus sp.
I think A. megacephalus, but I would have to refresh my menory by looking in the collection or Smetana's key to be sure.

Tom has posted images of both Atrecus spp.
His appear very dark compared to these roves but if this is that genus, it would be A. megacephalus due to the head being substantially wider than the pronotum.

btw, we have the tribe name spelled Xantholinini. Which spelling is correct?

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