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Home » Guide » Arthropods (Arthropoda) » Hexapods (Hexapoda) » Insects (Insecta) » Flies (Diptera) » "Aschiza" » Hover Flies (Syrphidae) » Syrphinae » Syrphini » Didea » Didea fuscipes
Photo#1259391
Syrphid on Willow at Lily Lake - Didea fuscipes - female
Copyright © 2016 Lynn Monroe

Syrphid on Willow at Lily Lake - Didea fuscipes - Female
Rocky Mountain National Park, Larimer County
August 22, 2006
Size: BL ~14 mm
This syrphid was seen at Lily Lake (elevation ~8940') in the Montane zone of Rocky Mountain NP on a Willow leaf. Separated eyes so maybe a female? With the bulbous yellow markings on tergite 1 (or 2?) and rather undulating eye margin, it somewhat resembles Syrphus ribesii, my best guess. However, the two lower bands end with a lateral margin of black. I do not see this margin on some of the BugGuide images of S. ribesii. I cannot tell if eyes are hairy, though I suspect no, nor can I see hairs on the wings.
Any help with its identification is greatly appreciated.
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Contributed by Lynn Monroe on 17 July, 2016 - 11:54am
Last updated 26 July, 2016 - 11:57am

Dark frons... not Megasyrphus
Dark frons... not Megasyrphus?
… Even Dankowicz, 12 May, 2019 - 1:52pm login or register to post comments

Moved
Moved from Syrphid Flies.
… Martin Hauser, 18 July, 2016 - 11:27pm login or register to post comments

Didea fuscipes
On the left wing the R4+5 vein can be seen to be strongly dipped and the hind tarsi black and markings on tergite 3 and 4 are not divided, broad and oblique on their posterior surface. Didea fuscipes ....... female.
… Bill Dean, 18 July, 2016 - 8:53pm login or register to post comments

 
Didea fuscipes
Fabulous, a genus I've never even heard of! Thank you so much! Your help is so much appreciated.
… Lynn Monroe, 19 July, 2016 - 9:39am login or register to post comments

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