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Diptera.info :: Identification queries :: Diptera (adults)
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Muscidae: Helina?
Steve Scholnick
#1 Print Post
Posted on 20-05-2018 00:45
Member

Location: Maryland, USA
Posts: 129
Joined: 25.12.17

I think I’ve got this one keyed out to Helina but, with muscids especially, I’m never sure. Thanks for the help

found in a suburban office park with trees, a stream, and a pond in the vicinity. Maryland, USA
body length 7-8mm

bugguide.net/images/raw/JHI/HTH/JHIHTH4HRR9HFH6HLRXL1Z7L9Z2H1ZNHWZLLOHZLAH5H5ZRLAHZL4ZLLGZHLVHGHEZGHPZ0L5Z0L2ZGH.jpg

bugguide.net/images/raw/NZI/L1Z/NZIL1ZGL6ZSLGZRLGZZL8ZRLVHPHJH7LUZUHDHGH2ZQL8ZILWZILWZZLNZ7LUZHL8ZSL1H8HTHLLEZ0L.jpg

bugguide.net/images/raw/Q0U/0H0/Q0U0H0E0OQI0JQ503Q70R0XQTRXQYRKQR07QJRP0K0XQBRJKTQP0DRP0JRLQJQ70YQ50ARRQAR50Q0N0.jpg

bugguide.net/images/raw/IQF/R0Q/IQFR0QORJKNRZQVRFK3QM0L0MQS0G0NRYKURX0DQJKNRKQTRW03RSQYRU0H0U0H0SQORP0Z0E0Z0IQZ0.jpg

bugguide.net/images/raw/HK9/KRK/HK9KRKPKIK1K5KOKNQY0MKDKAQDKSKO01QTKQKEKPQA04Q30IKVK1QO01QTKIKF0IKJ08KNK6QPKIKJ0.jpg

view of the hind tibia with the photo on the left from an anterior angle and the one on the right from a posterior angle. The arrows point towards the anterior and are roughly parallel to the body axis
bugguide.net/images/raw/CKI/KOK/CKIKOKGK9KSK6KRKWKZKT0HKV00K9K4KJ01Q1K8KTKGKCKMKTKXKJ09QJ01QO0RKO06Q6KKKC0QK9KZK.jpg

bugguide.net/images/raw/20D/QG0/20DQG0JQW0K0E0L020H0P03RKQQ090YRSQZ0KQZ0E0JRZQ3Q3K3QYKARZQARJKAR50JQ509R70OQFK3Q.jpg
Edited by Steve Scholnick on 09-10-2022 22:58
 
Steve Scholnick
#2 Print Post
Posted on 14-01-2019 00:45
Member

Location: Maryland, USA
Posts: 129
Joined: 25.12.17

logic/illogic behind my tentative ID here on BugGuide: https://bugguide....ew/1518349
Thanks
Steve
 
Steve Scholnick
#3 Print Post
Posted on 15-11-2019 18:00
Member

Location: Maryland, USA
Posts: 129
Joined: 25.12.17

bump :-)
 
Nikita Vikhrev
#4 Print Post
Posted on 15-11-2019 20:53
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Location: Moscow, Russia
Posts: 9459
Joined: 24.05.05

What is your doubts? If you use Huckett, 1965, the answer will be
Quadrularia laetifica = indeed Helina evecta (a row of hairs on meron is visible on 3rd photo).
Nikita Vikhrev - Zool Museum of Moscow University
 
Steve Scholnick
#5 Print Post
Posted on 15-11-2019 23:16
Member

Location: Maryland, USA
Posts: 129
Joined: 25.12.17

Thanks Nikita. BugGuide has only 1 record of that genus so it will be a nice addition (and that ID was DNA based).

By Huckett 1965 do you mean "The Muscidae of Northern Canada, Alaska, and Greenland (Diptera)"? I don't have access to that one and, besides, I wouldn't have guessed that this paper was relevant given that I live maybe a 1000 miles south of the book's subject area.

You asked what are my doubts. Outside of the fact that when I submitted this one 1.5 years ago I knew even less about muscids that I do now, I submit all of my insect records to a biodiversity survey of Maryland (http://www.maryla.../index.php). Unless it's an insect taxon I know well, I try to get expert confirmation before I submit the photos. There's no point in sending them incorrect IDs. I also include the name of the expert who made or confirmed the ID to back up the submission.

Thanks again
Steve
 
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If you have some spare money, there is a copy (together with keys to pupae and larvae) for sale by Hermann L. Strack, Loguivy Plougras, France

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I have Russian Coenosia. nikita6510@ya.ru

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