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Photo#622743
Microporus nigrita

Microporus nigrita
Kennebunk, York County, Maine, USA
March 23, 2012
Size: 4 mm
I found two of these on a sandy road. They seem to be the same as . Maybe this is a better shot.

Moved
Moved from Melanaethus.

I was wrong on this one. In doing some searching, I found that an old world species has become established in North America, Aethus nigritus. First confirmed image for the guide, though I suspect many are already posted and not recognized.

 
great investigative job, man...
amazingly, not recorded in Canada as of 2009(1) -see p.39

 
but see the newer paper I just posted
:)

 
terrific!
so, with the ink still wet on that article, they've found a dozen specimens sitting in the Guelph coll'n!?!?!

Moved
Moved from Cydninae. Examing the specimen you sent, it is clearly Melanaethus. Will take some time later tonight or tomorrow to determine species.

Moved

Not sure
Looking thru the described ranges of this subfamily in (1), the only species whose range would include Maine is Pangaeus bilineatus, but it certainly doesn't look like that species.

I suspect this is probably Melanaethus robustus, as I've seen a specimen that Tom Murray collected in MA. I'll check in Foerster's revision to see if that might help clear it up.

Edit: Apparent lack of any northeastern records in Froeschner's monograph. I do see that UoNH records online lists Microporus obliquus in NH. I would say the (at least) two options for your area are rather difficult to separate from photos. Seeing a specimen would clear up the identity.

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