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Photo#276516
Darkling beetle - Gnatocerus guatemalensis - female

Darkling beetle - Gnatocerus guatemalensis - Female
Chantilly, Fairfax County, Virginia, USA
May 17, 2009
Size: ~ 3 mm
Found under the bark of a rotting tree. My best guess is Gnatocerus cornutus.

Images of this individual: tag all
Darkling beetle - Gnatocerus guatemalensis - female Darkling beetle - Gnatocerus guatemalensis - female Darkling beetle - Gnatocerus guatemalensis - female

well, it still goes under that name...
...according to(1) -- so i see no harm of moving it to species

Moved from Gnatocerus.

 
Thanks, v!
^^

Moved

okkay, here we go...
Moved from Gnatocerus.

 
Thanks, v!
I added two pictures, but it also looks like guatemalensis...

 
from Warren Steiner: "Gnatocerus but not cornutus...
"This one has been going by the name guatemalensis but according to Larry Watrous who is revising the genus, this has been a long-standing misidentification. Not sure yet what name he has decided on."

 
sweet!
i'll ask Dr Thomas to take another look once he's back from his Caribbean trip

*
Dr. Thomas suggests: "I think rather female G. cornutus, based on shape of pronotum"

 
I agree!
When I first saw a male photo of G. cornutus in the pdf document with the key (Florida ~), I almost exclude this species. But, I found the female is very different from the male when I checked the eastern species list and the photos on the same site.

As for the size, I measured again and confirmed it's about 3 mm.

 
Dear I think that this spe
Dear

I think that this species is not Gnatocerus cornutus.
Now, I am working on a project about this pest.
In the female of this species, you can not see the mandibule from top.
please see the real picture of this species at below links:
http://entnemdept.ufl.edu/teneb/g_cornutus.htm

I think that this is Gnatocerus maxillosus.

 
Thanks for the information!
Thanks for informing of the important feature of the female of G. cornutus!
I agree that this is not G. cornutus. But I think it's also different from G. maxillosus. Please refer to Warren Steiner's above comment.

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