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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 anthreas
Photo#1107129
Chalcosyrphus, I *think* - Chalcosyrphus anthreas
Copyright © 2015 Denis A. Doucet

Chalcosyrphus, I *think* - Chalcosyrphus anthreas
29 Stiles Rd, Riverside-Albert, Albert County, New Brunswick, Canada
July 16, 2015
If Chalcosyrphus, could this be C. anthreas? It sure seems to have widely distributed pale areas on the legs.

See:
http://www.canacoll.org/Diptera/Staff/Skevington/Syrphidae/Chalcosyrphus/Chalcosyrphus4.jpg

Images of this individual: tag all
Chalcosyrphus, I *think* - Chalcosyrphus anthreas Chalcosyrphus, I *think* - Chalcosyrphus anthreas
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Contributed by Denis A. Doucet on 22 July, 2015 - 4:00pm
Last updated 27 February, 2016 - 4:51pm

Moved
Moved from Chalcosyrphus.

As Martin says it's Chalcosyrphus, it is certainly C. anthreas - the only similar species in range is C. nemorum and it has much less white on the knee.
… Kelsey J.R.P. Byers, 27 February, 2016 - 4:51pm login or register to post comments

 
Thanks!
I will certainly be looking for more of these this summer. They are really spectacular and fascinating flies.
… Denis A. Doucet, 27 February, 2016 - 4:54pm login or register to post comments

Moved
Moved from Xylotina.
… Martin Hauser, 26 February, 2016 - 1:57pm login or register to post comments

Almost certainly C. anthreas.
Almost certainly C. anthreas. The problem is telling it from one of the 12 Xylota that look very similar... so I will leave it in Xylotina for now.
… Kelsey J.R.P. Byers, 22 July, 2015 - 5:09pm login or register to post comments

 
Thanks!
I understand the difficulty, as there is no scale to compare it with in the photo. It was certainly much larger than the nearby Xylota I am familiar with and different looking right away in the field...And behaving differently. But then I don't know if any Xylota are in the 10-12 mm range. Gotta check on that.
… Denis A. Doucet, 22 July, 2015 - 5:33pm login or register to post comments

 
Gotcha. Yeah, our general de
Gotcha. Yeah, our general dearth of knowledge about Xylota (no recent keys, Jeff hasn't put out a pictoral guide, etc) is very frustrating!
… Kelsey J.R.P. Byers, 22 July, 2015 - 5:55pm login or register to post comments

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