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Home » Guide » Arthropods (Arthropoda) » Insects (Insecta) » Flies (Diptera) » "Nematocera" (Non-Brachycera) » Bibionomorpha » March Flies (Bibionidae) » Bibio
Photo#5830
Mystery Fly - Bibio - male
Copyright © 2004 Tom Bentley

Mystery Fly - Bibio - Male
Lisle, Illinois, USA
May 19, 2004
Found this fly sitting on some bushes.
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Contributed by Tom Bentley on 14 August, 2004 - 2:30pm
Last updated 12 April, 2005 - 10:33am

It is a bibionid fly or march
It is a bibionid fly or march fly, belonging to the genus Bibio (Diptera: Bibionidae). I do not know American species, though.

Paul
… Paul Beuk, 16 August, 2004 - 4:57am login or register to post comments

 
Male march fly
You can tell it is a male by the holoptic eyes (compound eyes meet at the top of the head). Females look radically different with very small heads in proportion to their bodies.
… Eric R. Eaton, 16 August, 2004 - 12:24pm login or register to post comments

 
Thanks for all your help.
Thanks for all your help.
… Tom Bentley, 17 August, 2004 - 10:57pm login or register to post comments

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