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Home » Guide » Arthropods (Arthropoda) » Hexapods (Hexapoda) » Insects (Insecta) » Flies (Diptera) » "Nematocera" (Non-Brachycera) » Gnats, Gall Midges, and March Flies (Bibionomorpha) » Axymyiidae » Axymyia » Axymyia furcata
Photo#271572
hump-backed fly - Axymyia furcata - male
Copyright © 2009 tom murray

hump-backed fly - Axymyia furcata - Male
Middlebury, Addison County, Vermont, USA
April 29, 2009
Size: 8.5mm

Images of this individual: tag all
hump-backed fly - Axymyia furcata - male hump-backed fly - Axymyia furcata - male
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Contributed by tom murray on 2 May, 2009 - 12:38pm
Last updated 2 May, 2009 - 8:04pm

much more fun than bibionids anyway
Moved from March Flies.
… v belov, 2 May, 2009 - 8:04pm login or register to post comments

Moved
Moved from Flies.
… tom murray, 2 May, 2009 - 1:07pm login or register to post comments

wing says bibionid...
*
… v belov, 2 May, 2009 - 12:55pm login or register to post comments

 
But which?
It seems to have four branches of R with an angled R2. The genera of Bibionidae with more than two branches are Hesperinus (which looks like a fungus gnat), Plecia (which should not be found north of the Carolinas, and appears to differ in detail of veins), and Penthetria, which has different veins and is darker). Could it belong to Anisopodidae or Axymyia? The eyes are much bigger than in Tom's picutre of A. furcata but that could be sexual dimorphism. The wing veins look close.
… John F. Carr, 2 May, 2009 - 7:08pm login or register to post comments

 
Axymyia
John is correct - this is the male of Axymyia. Bibionidae do not have vein R2+3 forked. You can also see the small shiny spots on the scutum, which match the female already in the guide.
… Joel Kits, 2 May, 2009 - 7:56pm login or register to post comments

 
nice to know!
thanks for setting me straight
… v belov, 2 May, 2009 - 8:02pm login or register to post comments

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