Diptera.info :: Identification queries :: Diptera (adults)
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 puzzling anthomyiid
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| Steve Scholnick |
Posted on 17-03-2021 06:14
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Member Location: Maryland, USA Posts: 128 Joined: 25.12.17 |
I initially thought this would be a Delia but it lacks hairs under the scutellum. It instead keys out to Chirosia using the Manual of the Nearctic Diptera Anthomyiidae key. Whether that's correct depends, in part, on my correctly interpreting the bristles of the hind tibiae as including a "robust apical posteroventral bristle". There does appear to be a bristle there but it's not exactly "robust". found in a Maryland USA botanic garden. body ~4mm Thanks in advance for the help Steve    dorsal view of whole right wing; ventral view of the area surrounding the costal break showing sparse ventral bristles on the costa       posterior view of right hind tibia 
Edited by Steve Scholnick on 09-10-2022 23:00 |
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| Nikita Vikhrev |
Posted on 17-03-2021 10:55
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 Member Location: Moscow, Russia Posts: 9306 Joined: 24.05.05 |
Hi Steve. I checked 2 males of Delia florilega I found at home. Males of Delia florilega are unmistakable because of chaetotaxy of t3 and tar2-1, correct? Well, both my males have hairs under scutellum! Nikita Vikhrev - Zool Museum of Moscow University |
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| Steve Scholnick |
Posted on 17-03-2021 21:43
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Member Location: Maryland, USA Posts: 128 Joined: 25.12.17 |
Hi Nikita, Thanks for checking your Delia specimens. I think that Nearctic Delia also are supposed to have hairs under the scutellum but my knowledge of anthomyiids is like my knowledge of muscids – very thin :-) Regards Steve |
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| Nikita Vikhrev |
Posted on 17-03-2021 21:57
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Member Location: Moscow, Russia Posts: 9306 Joined: 24.05.05 |
Steve, my knowledge of Anthomyiid is very limited as well. However: 1. D. florilega is Nearctic (see: https://fauna-eu.org/cdm_dataportal/taxon/b4333247-2984-43df-98c2-23c0edefec45 ) 2. Even Dr.Ackland, even for rather small British fauna limited himself by key for males only. Nikita Vikhrev - Zool Museum of Moscow University |
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| John Carr |
Posted on 17-03-2021 22:00
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 Member Location: Massachusetts, USA Posts: 10082 Joined: 22.10.10 |
Nikita Vikhrev wrote: Steve, my knowledge of Anthomyiid is very limited as well. However: 1. D. florilega is Nearctic (see: https://fauna-eu.org/cdm_dataportal/taxon/b4333247-2984-43df-98c2-23c0edefec45 ) 2. Even Dr.Ackland, even for rather small British fauna limited himself by key for males only. Griffiths wrote keys to species for females, but he died before he could write the key to genera. If you know what genus it is in his classification you have a chance of identifying species. You may need to extrude the ovipositor to look at forms of tergites and sternites of the postabdomen. |
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| Nikita Vikhrev |
Posted on 17-03-2021 22:29
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Member Location: Moscow, Russia Posts: 9306 Joined: 24.05.05 |
Or take one leg and make barcode of COI (not too expencive now) and compare with that of D. platura (http://v3.boldsystems.org/index.php/Public_SearchTerms?query=%22Delia%20platura%22[tax]) and/or other Delia
Nikita Vikhrev - Zool Museum of Moscow University |
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| Steve Scholnick |
Posted on 17-03-2021 22:40
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Member Location: Maryland, USA Posts: 128 Joined: 25.12.17 |
Thanks Nikita and John. I'll see if I still have the specimen. I'n really not sure which genus it is. Regards Steve Edited by Steve Scholnick on 17-03-2021 22:41 |
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