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Home » Guide » Arthropods (Arthropoda) » Hexapods (Hexapoda) » Insects (Insecta) » Flies (Diptera) » "Nematocera" (Non-Brachycera) » Gnats, Gall Midges, and March Flies (Bibionomorpha) » March Flies (Bibionidae) » Bibio » xanthopus group (Bibio xanthopus group)
Photo#1517934
Bibio genus march fly pair - Bibio - male - female
Copyright © 2018 Dave Trochlell

Bibio genus march fly pair - Bibio - Male Female
La Grande, Union County, Oregon, USA
May 8, 2018
It was a lucky break to find this pair of Bibio genus march flies "in copula". I was amazed to see this species' degree of sexual dimorphism. This pair was attracted to lights and discovered on my daily moth survey.

Images of this individual: tag all
Bibio genus march fly pair - Bibio - male - female Bibio genus march fly pair - Bibio - male - female
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Contributed by Dave Trochlell on 9 May, 2018 - 9:16am
Last updated 11 January, 2023 - 9:40am

Moved
Moved from xanthopus group.
… Even Dankowicz, 11 January, 2023 - 9:41am login or register to post comments

Moved
Moved from Bibio vestitus.
… Even Dankowicz, 8 January, 2023 - 4:32pm login or register to post comments

dark posterior veins, particu
dark posterior veins, particularly in male, rule out vestitus -> similis/palliatus
… Even Dankowicz, 8 January, 2023 - 4:32pm login or register to post comments

Moved
Moved from Bibio.
… John F. Carr, 9 May, 2018 - 4:34pm login or register to post comments

 
Thank you!
John,

Thank you for the species identification! That's great news!
… Dave Trochlell, 10 May, 2018 - 8:03am login or register to post comments

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