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Photo#730564
False Darkling Beetle - Orchesia castanea

False Darkling Beetle - Orchesia castanea
Edmundston, Madawaska County, New Brunswick, Canada
July 23, 2012
Size: 5,3mm
Which genus, species?

Images of this individual: tag all
False Darkling Beetle - Orchesia castanea False Darkling Beetle - Orchesia castanea False Darkling Beetle - Orchesia castanea False Darkling Beetle - Orchesia castanea False Darkling Beetle - Orchesia castanea

Moved
Moved from Orchesia.

Orchesia castanea (Melsheimer)
From the additional photograph, it is clear that this is not Orchesia ovata Laliberté. The shape of the last maxillary palpomere, with base no wider than the apex of the preceding one, indicates that this is Orchesia castanea (Melsheimer) instead.

Orchesia ovata Laliberté
I think this is Orchesia ovata Laliberté. It's a little hard to see in the ventral view photograph of the head, but it looks like the eyes are widely separated on the head, This is characteristic of O. ovata as in this photograph. O. ovata is widely distributed in New Brunswick.

Richard: if you can take a photograph that shows the position of the eyes on the frons then we can confirm this determination.

 
Photo of Front and eyes added
Photo of Front and eyes added

cultriformis? will ask Dr Pollock to check it out
thanks again for sharing!
Moved from False Darkling Beetles.

 
I still have the specimen for
I still have the specimen for most of these beetles, so, if you need more detail shot of them, please let me know..

 
Darren Pollock's response:
"Unfortunately, it's difficult to discern the shape of the last maxillary palpomere from the photos provided. I'm assuming either cultriformis or castanea, however. That's about as far as I can go."

Richard, pls add a good closeup of the palpus, and we'll retry.

 
Is the palpus you are refferi
Is the palpus you are reffering to the larger one or the tiny one very near the mouth?

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