Thread subject: Diptera.info :: Temnostoma ?

Posted by Stephen on 28-06-2007 19:04
#1

I believe this is in genus Temnostoma, is that correct? According to nearctica.com, the Nearctic species of Temnostoma are: T. acrum, T. alternans, T. balyras, T. barberi, T. daochus, T. excentrica, T. obscurum, T. trifasciatum, T. venustum, and T. vespiformis.

Can anyone shed some light on the species ID of this fly?

Forest near a small stream, 7 June 2007, West Virginia USA. Length 10-11 mm.

Thanks in advance for any help!

Edited by Stephen on 28-06-2007 19:19

Posted by Stephen on 28-06-2007 19:07
#2

Here's a view of the fly's "face."

Posted by amalia_raluca on 28-06-2007 19:59
#3

it is indeed a Temnostoma, in my opinion bombylans.

Best wishes,
Amalia

Posted by Gerard Pennards on 28-06-2007 21:02
#4

No, it's not T. bombylans, because this is a species from the Nearctic, and there is no bombylans there.
There are several species who looks like this: balyras, barberi, obscurum and trifasciatum.
When I interpret the picture right, it seems that tergite 5 is extensively yellow pilose, and of these four species only T. balyras has that feature.
So, my idea would be a male of Temnostoma balyras! B)
Greetings

Posted by Stephen on 29-06-2007 12:45
#5

Amalia, Gerard, Thanks for commenting. I'm posting another photo that shows better the yellow pilose area Gerard mentioned.

The range for T. balyras seems to match, living in the eastern United States and Canada.

Thanks again for your help!

Posted by Stephen on 29-06-2007 12:45
#6

Amalia, Gerard, Thanks for commenting. I'm posting another photo that shows better the yellow pilose area Gerard mentioned.

The range for T. balyras seems to match, living in the eastern United States and Canada.

Thanks again for your help!