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Robber Fly? - Cerotainiops omus

Robber Fly? - Cerotainiops omus
Brown Canyon, Pima County, Arizona, USA
April 14, 2018

Moved from Cerotainiops.

Thanks Eric!

Moved from ID Request.

Cerotainiops sp.
I'm not sure if the white coloring on the tarsi is diagnostic for Cerotainiops omus. (probably a female)

Cerotainiops omus confirmed.
Dark thorax & legs (mahogany-brown or darker) is best simple character for ID.

Cerotainiops omus shows strong preference for perching on rocks; other spp. of genus favor sandy or gravelly soil.

Cheers, Eric.

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