Diptera.info :: Identification queries :: Diptera (adults)
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 Tachinidae: are these 2 the same?
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| Dmitry Gavryushin |
Posted on 08-06-2007 11:39
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 Member Location: Moscow region, Russia Posts: 3308 Joined: 17.10.05 |
I just wonder if it's the same species despite one's got hairy eyes and the other has no hairs. No. 1 - June 05, at my balcony. No. 2 - June 07, on a forest meadow (same place as my June 03 posts). Size roughly equal, around 7.5 mm. First, the heads. Dmitry Gavryushin attached the following image:  [113.83Kb] |
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| Paul Beuk |
Posted on 08-06-2007 11:49
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 Super Administrator Location: Netherlands Posts: 19368 Joined: 11.05.04 |
I'd say they are different. Colour is different (may not necessarily be a decider) but the structure of the second antennal segment is different (narrower and rather glossy in 1) and the location where the ocellar setae are implanted is different, too. Otherwise there are other idfferences in the facial and frontal setae and setulae.
Paul - - - - Paul Beuk on https://diptera.info |
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| Dmitry Gavryushin |
Posted on 08-06-2007 11:51
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Member Location: Moscow region, Russia Posts: 3308 Joined: 17.10.05 |
Lateral views.
Dmitry Gavryushin attached the following image:  [170.36Kb] |
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| Dmitry Gavryushin |
Posted on 08-06-2007 11:53
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Member Location: Moscow region, Russia Posts: 3308 Joined: 17.10.05 |
And dorsal views.
Dmitry Gavryushin attached the following image:  [169.18Kb] |
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| Dmitry Gavryushin |
Posted on 08-06-2007 11:56
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Member Location: Moscow region, Russia Posts: 3308 Joined: 17.10.05 |
Many thanks Paul - well to my untrained eye the form and location of setae are very similar; unfortunately, I don't have two head shots with identical position so maybe different angles are deceptive... |
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| ChrisR |
Posted on 08-06-2007 12:19
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 Administrator Location: Reading, England Posts: 7699 Joined: 12.07.04 |
They look like different genera to me but I think they are the same tribe (Voriini) because they have the steeply angled m-cu vein. The bare eyed one looks like Athrycia and the hairy-eyed one could be Cyrtophleba ruricola.  |
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| Dmitry Gavryushin |
Posted on 08-06-2007 13:11
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Member Location: Moscow region, Russia Posts: 3308 Joined: 17.10.05 |
Thanks Chris - actually it was wing venation that attracted my attention first - and I can only guess how many Tachinidae species look so much alike if even different genera are so similar  ... |
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| ChrisR |
Posted on 08-06-2007 13:25
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Administrator Location: Reading, England Posts: 7699 Joined: 12.07.04 |
Well, I am pretty sure that the angled m-cu is found only in Voriini and here using the UK key your specimens would go the ways I described. The hairs along the vein r4+5 are also quite distinctive. But there are more Voriini in Europe that I don't know about |
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| Zeegers |
Posted on 08-06-2007 18:59
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Member Location: Soest, NL Posts: 18794 Joined: 21.07.04 |
Chris is very correct. Cyrtophleba ruricola and Athrycia. I guess it is A. trepida. Theo |
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| Dmitry Gavryushin |
Posted on 09-06-2007 08:06
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Member Location: Moscow region, Russia Posts: 3308 Joined: 17.10.05 |
Many thanks for your confirmation Theo. |
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