Syrphus ? - Syrphus torvus

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Home » Guide » Arthropods (Arthropoda) » Hexapods (Hexapoda) » Insects (Insecta) » Flies (Diptera) » "Aschiza" » Hover Flies (Syrphidae) » Syrphinae » Syrphini » Syrphus » Syrphus torvus

Photo#910105

Copyright © 2014 John Rosenfeld

Syrphus ? - Syrphus torvus

Allison Park, Allegheny County, Pennsylvania, USA
April 16, 2014

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Contributed by John Rosenfeld on 16 April, 2014 - 9:32pm
Last updated 17 April, 2014 - 5:33pm

Moved

Moved from Syrphid Flies.

… Kelsey J.R.P. Byers, 17 April, 2014 - 5:33pm

Yes - Syrphus torvus. Cell b

Yes - Syrphus torvus. Cell bm is trichose (thanks for the good image there!), eyes are haired (typical of torvus, unusual for the other Syrphus in this part of the world), hind femur is black on basal 3/4. Nice shot from above - that showed me the yellow hairs on the dorsal surface of the lower calypter, which is the key trait for Syrphus.

… Kelsey J.R.P. Byers, 17 April, 2014 - 5:33pm

Thanks Kelsey

I always appreciate your thorough diagnostic comments, really adds to the value of the guide!

… John Rosenfeld, 17 April, 2014 - 6:01pm

Thanks! These clear photos o

Thanks! These clear photos of yours really make things so much easier - lovely images.

… Kelsey J.R.P. Byers, 17 April, 2014 - 6:02pm

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