Posted by Erland on 12-05-2014 22:50
#1
This male robberfly might be the same species as a female I photographed 15 minutes later. Travis County, near Austin, Texas, 7th June 2013.
Here the thread of the female:
http://www.dipter...d_id=60788
As I remember it, this male was quite a lot smaller than the female though, but I guess that's common.
Erland
Denmark
Edited by Erland on 15-05-2014 18:06
Posted by John Carr on 15-05-2014 13:44
#2
Males of
Promachus bastardii and related species have the white tail.
When the white spot is not at the tip of the tail, but a band with black beyond, you probably have
Efferia near
albibarbis.
See also
http://www.hr-rna...20page.htm
Edited by John Carr on 15-05-2014 13:46