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Home » Guide » Arthropods (Arthropoda) » Hexapods (Hexapoda) » Insects (Insecta) » Flies (Diptera) » "Acalyptratae" » Sciomyzoidea » Thick-headed Flies (Conopidae) » Stylogastrinae » Stylogaster » Stylogaster biannulata
Photo#34846
Empis? - Stylogaster biannulata - female
Copyright © 2005 Steve Scott

Empis? - Stylogaster biannulata - Female
Fairfield, Wayne County, Illinois, USA
October 16, 2005
Size: 1 cm +
Flying stance. Not perfect but captures the orientation.

Images of this individual: tag all
Thick headed Fly - Stylogaster biannulata - female Empis? - Stylogaster biannulata - female Empis? - Stylogaster biannulata - female
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Contributed by Steve Scott on 17 October, 2005 - 11:28pm
Last updated 10 February, 2015 - 12:31pm

PS: This is a female
You can tell from the gradually-tapered abdomen (i.e. ovipositor). The abdomen is conspicuously truncate in males of Stylogaster.

(BTW, We don't have any images of a male S. biannulata yet...maybe you'll find one next time? :-)
… Aaron Schusteff, 10 February, 2015 - 12:31pm login or register to post comments

Hovering orientation
Steve, does this really capture the orientation you observed?

I'd expect the heavier hind legs to dangle downwards (rather than horizontally backwards), and the head and abdomen to be more closely aligned with the horizontal than they appear above.

I wonder if you meant to post this image rotated by 90° clockwise? (Unless it was flying downward, rather than hovering.) If not, that truly is a bizarre orientation for hovering...would take a lot of strength & energy to constantly hold those legs up, against the influence of gravity
… Aaron Schusteff, 14 February, 2014 - 4:50pm login or register to post comments

Moved
Moved from Stylogaster.
… john and jane balaban, 23 February, 2008 - 8:48pm login or register to post comments

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