Diptera.info :: Identification queries :: Diptera (adults)
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 Medetera, Apr. 21, 2007
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| Dmitry Gavryushin |
Posted on 21-04-2007 20:31
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 Member Location: Moscow region, Russia Posts: 3303 Joined: 17.10.05 |
This time on Betula. Sitting motionless when there's no sun and starting to move with typical short leaps when the sun was shining.
Dmitry Gavryushin attached the following image:  [146.93Kb] |
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| Nikita Vikhrev |
Posted on 21-04-2007 21:20
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 Member Location: Moscow, Russia Posts: 9229 Joined: 24.05.05 |
The question you asked me today is easy to answer - it isn't M.jacula. Looks similar to Medetera in your previous post. Nikita Vikhrev - Zool Museum of Moscow University |
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| Dmitry Gavryushin |
Posted on 22-04-2007 11:22
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Member Location: Moscow region, Russia Posts: 3303 Joined: 17.10.05 |
Thanks Nikita - so it seems I have some more non-jacula pix made in last year... |
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| Igor Grichanov |
Posted on 22-04-2007 14:27
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 Member Location: St.Petersburg, Russia Posts: 1688 Joined: 17.08.06 |
Why not Medetera borealis Thuneberg, 1955: Ann.ent.Fenn. 21(3): 135 ** Type locality: Finland: Joutseno, Turku. Palaearctic: Sweden, Finland, England, Norway, Czech, Russia, Japan * Anyway, please check genitalia. Igor Grichanov attached the following image:  [5.18Kb] Igor Grichanov |
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| Nikita Vikhrev |
Posted on 22-04-2007 14:35
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Member Location: Moscow, Russia Posts: 9229 Joined: 24.05.05 |
Yes!! Looks similar to Medetera in your previous post. http://www.diptera.info/forum/viewthread.php?forum_id=5&thread_id=5723 my guess - M.borealis
Nikita Vikhrev - Zool Museum of Moscow University |
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| Kahis |
Posted on 22-04-2007 15:21
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 Member Location: Helsinki, Finland Posts: 1999 Joined: 02.09.04 |
I disagree  The haltere looks rather dark. The first Medetera I usually find in the spring are M. infumata, M. pseudoapicalis and M. tristis. Of there three, M. tristis is the best match with the photographed fly. So I'd say M. tristis, although not with 100% certainity. Kahis |
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| Nikita Vikhrev |
Posted on 22-04-2007 15:30
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Member Location: Moscow, Russia Posts: 9229 Joined: 24.05.05 |
I hope to get specimen next week and tell what I find...
Nikita Vikhrev - Zool Museum of Moscow University |
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| Dmitry Gavryushin |
Posted on 22-04-2007 20:13
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Member Location: Moscow region, Russia Posts: 3303 Joined: 17.10.05 |
Many thanks to all - 2 specimens for Nikita . |
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| Nikita Vikhrev |
Posted on 23-04-2007 18:31
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Member Location: Moscow, Russia Posts: 9229 Joined: 24.05.05 |
Today I've got two specimens - from 21apr (on photo) and another on from 22 apr. Halters dark, postocular black, everything else for Medetera tristis including genitalia. But in http://www.diptera.info/forum/viewthread.php?forum_id=5&thread_id=5723 halter is yellow, doesn't it? Nikita Nikita Vikhrev - Zool Museum of Moscow University |
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| Kahis |
Posted on 23-04-2007 19:06
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Member Location: Helsinki, Finland Posts: 1999 Joined: 02.09.04 |
Yeaasnnoooomaybe. The haltere colour isn't quite as nicely divided to pale/dark as one could hope in these flies. For the "tristis-apicalis"-group, I would only trust identifications based on male genitalia.
Kahis |
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but don't see the image in the post.