Monday, July 16, 2007

Another Robber Fly

Robber Fly (Genus Ommatius)

Perched on a bare twig, a pose typical of males of this genus. The definitive genus characteristic is that all members of Ommatius have antennae that are slightly branched (feathered) like those of a moth, a feature that's close to impossible to see while in the field, but can be seen in one of the photos on Herschel Raney's Ommatius page. Feathered antennae among robber flies are unique to this genus.