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Home » Guide » Arthropods (Arthropoda) » Hexapods (Hexapoda) » Insects (Insecta) » Flies (Diptera) » "Aschiza" » Hover Flies (Syrphidae) » Eristalinae » Milesiini » Xylotina » Chalcosyrphus » subgenus Xylotomima (Chalcosyrphus subgenus Xylotomima) » Chalcosyrphus piger
Photo#954253
Black fly with deep red abdomen on Verbascum thapsis (common mullein) - Chalcosyrphus piger
Copyright © 2014 prairie flower

Black fly with deep red abdomen on Verbascum thapsis (common mullein) - Chalcosyrphus piger
Muscoot Farm County Park, Westchester County, New York, USA
July 8, 2014
Size: ca. 5/8"
Sorry it's not a sharper image. A few of these flies visited the plants repeatedly. Perhaps a wasp mimic?
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Contributed by prairie flower on 10 July, 2014 - 7:46am
Last updated 11 July, 2014 - 2:04pm

Moved
Moved from Syrphid Flies.

See here for a diagnosis between this and C. libo, the other northeastern species with a reddish-orange abdomen.
… Kelsey J.R.P. Byers, 11 July, 2014 - 2:04pm login or register to post comments

 
black fly with red abdomen on mullen
Thank you so much for pinning this down for me with the excellent, detailed images. Although my fly's abdomen looked deeper red than the red-orange shown in both of these species, the overall longer shape and black hind tarsi would put it into C. piger.

What a wonderful service BugGuide and its users provide!
P. f.
… prairie flower, 11 July, 2014 - 2:25pm login or register to post comments

 
No problem! Chalcosyrphus is
No problem! Chalcosyrphus is often mistaken for Xylota, but the red-abdomen black-otherwise Xylota species are all western, fortunately for us!
… Kelsey J.R.P. Byers, 11 July, 2014 - 5:49pm login or register to post comments

Moved for expert attention
Moved from ID Request.
… Ken Wolgemuth, 10 July, 2014 - 5:44pm login or register to post comments

Syrphid
Looks like a syrphid fly in the genus Chalcosyrphus.
look here: http://bugguide.net/node/view/7936
… S Moorman, 10 July, 2014 - 9:17am login or register to post comments

 
Fly on mullein
Thanks so much for the rapid response. It does look like some of the flies on that page.
… prairie flower, 10 July, 2014 - 9:26am login or register to post comments

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