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Photo#598828
Nocturnal beetle hunting termites - Brachinus favicollis

Nocturnal beetle hunting termites - Brachinus favicollis
San Pedro River crossing at River Road, SE of San Manuel, Pinal County, Arizona, USA
July 6, 2011
Size: approx 12 mm
Colorful nocturnal beetle, appears like a Large Foliage Ground Beetle, or maybe a Brachinus beetle, but unsure; was present in muddy "tidal zone" of semi-permanent water in Sonoran Desert, at time of emergence of many termites.

Images of this individual: tag all
Nocturnal beetle hunting termites - Brachinus favicollis Nocturnal beetle hunting termites - Brachinus favicollis

Brachinus favicollis Erwin --det. T.L. Erwin
Moved from Bombardier Beetle.

Moved
Moved from ID Request.

 
very difficult genus in AZ...
even with specimen in-hand and key...:)

 
AZ is not unique in this respect...
most of them look every bit like the next guy en todo el mundo; back in the old country, there were some 30-40 spp. of this exact habitus [plus maybe a handful of distinctive ones: maculate, or black, or tiny, or huge...]

 
Thanks
your help is wonderful - I miss so many of the (to you) obvious differences. It always surprises me.

Looks like Brachinus to me
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