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Home » Guide » Arthropods (Arthropoda) » Hexapods (Hexapoda) » Insects (Insecta) » Flies (Diptera) » Orthorrhapha » Tabanomorpha » Horse and Deer Flies (Tabanidae) » Deer Flies (Chrysopsinae) » Chrysopsini » Chrysops » calvus and niger (Chrysops calvus and niger)
Photo#1943230
very dark deer fly - Chrysops
Copyright © 2021 Larry Reis

very dark deer fly - Chrysops
Chimney Rock Park , Winneshiek County, Iowa, USA
May 27, 2020
Size: ~9 mm
I wonder if this dark deer fly is in the carbonarius group?

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very dark deer fly - Chrysops very dark deer fly - Chrysops very dark deer fly - Chrysops very dark deer fly - Chrysops very dark deer fly - Chrysops
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Contributed by Larry Reis on 25 February, 2021 - 8:09am
Last updated 9 March, 2022 - 8:33pm

Moved
Moved from Chrysops niger.
… Zachary Dankowicz, 9 March, 2022 - 8:33pm login or register to post comments

 
Chrysops calvus and niger
Thanks so much for identifying this deer fly as either Chrysops calvus or niger, Zachary! This is a big help for me as I try to learn how to tell one deer fly species from another.
… Larry Reis, 9 March, 2022 - 9:37pm login or register to post comments

 
No problem!
All Chrysops with entirely black abdomen and yellow clypeus are calvus or niger. Species ID is a bit more involved, as you can see on the info page for this comparison.
… Zachary Dankowicz, 9 March, 2022 - 9:39pm login or register to post comments

 
Chrysops calvus and niger
Thanks for these tips to help pin down the identity of Chrysops calvus and niger, Zachary. Yes, I did check out the info page right after I noticed that you'd made the ID on this fly and found out that telling calvus from niger is no easy task, at least not for me.
… Larry Reis, 9 March, 2022 - 9:48pm login or register to post comments

Moved
Moved from Chrysops.
… Zachary Dankowicz, 9 March, 2022 - 8:32pm login or register to post comments

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