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Home » Guide » Arthropods (Arthropoda) » Insects (Insecta) » Flies (Diptera) » "Nematocera" (Non-Brachycera) » Bibionomorpha » March Flies (Bibionidae) » Bibio
Photo#18745
hairy black fly - Bibio
Copyright © 2005 Scott Taylor

hairy black fly - Bibio
Larimer County, Colorado, USA
May 26, 2005
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Contributed by Scott Taylor on 30 May, 2005 - 8:14pm
Last updated 1 June, 2005 - 8:13am

March fly
This is a male of the march fly genus Bibio (family Bibionidae).

Paul

http://www.diptera.info
… Paul Beuk, 31 May, 2005 - 4:42am login or register to post comments

 
ID character.
I think the obvious, sharp spur on the tip of the front tibia ("shin") helps to identify this family, if not the genus. Might also be a secondary sexual characteristic. I'm sure Paul will chime in if I'm way off:-)
… Eric R. Eaton, 31 May, 2005 - 1:14pm login or register to post comments

 
Genus character
It is the decider for the genus. Different species may have different shapes (or rather relative lengths) of the spurs on the fore tibiae.

Paul

http://www.diptera.info
… Paul Beuk, 31 May, 2005 - 4:33pm login or register to post comments

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