Diptera.info :: Identification queries :: Diptera (adults)
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 Wich fly?
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| amaira |
Posted on 16-08-2006 13:27
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 Member Location: Stockholm Sweden Posts: 414 Joined: 13.08.06 |
This fly has been rather common here in my garden this summer.    She is about 10 mm and I don?t know her name. |
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| Susan R Walter |
Posted on 16-08-2006 13:32
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 Member Location: Touraine du Sud, central France Posts: 1802 Joined: 14.01.06 |
According to Theo - closed top cell and reddish sides to the abdomen - Eriothrix rufomaculata - another example of the self learning forum I hope Theo
Susan |
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| Paul Beuk |
Posted on 16-08-2006 13:35
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 Super Administrator Location: Netherlands Posts: 19365 Joined: 11.05.04 |
I'd rather expect it to be a species of Cylindromyia...
Paul - - - - Paul Beuk on https://diptera.info |
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| Dmitry Gavryushin |
Posted on 16-08-2006 13:38
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 Member Location: Moscow region, Russia Posts: 3308 Joined: 17.10.05 |
[Well it looks more like a Cylindromyia sp. to me...] I was a bit late with this, though. Edited by Dmitry Gavryushin on 16-08-2006 13:39 |
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| Susan R Walter |
Posted on 16-08-2006 13:40
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Member Location: Touraine du Sud, central France Posts: 1802 Joined: 14.01.06 |
I did think it looked pretty skinny
Susan |
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| Tony Irwin |
Posted on 16-08-2006 16:13
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 Member Location: Norwich, England Posts: 7234 Joined: 19.11.04 |
It's not Eriothrix, so I think the "closed top cell and red sides to the abdomen" only applies to Eriothrix-shaped tachinds.
Edited by Tony Irwin on 16-08-2006 16:25 Tony ---------- Tony Irwin |
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| Kahis |
Posted on 16-08-2006 16:29
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 Member Location: Helsinki, Finland Posts: 1999 Joined: 02.09.04 |
Cylindromyia interrupta. Given your location other similar species are unlikely. C. pusilla and C. brassicaria are also common in middle Scandinavia, but other species are very rare (in fact the only have those three species in Finland).
Kahis |
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| Zeegers |
Posted on 16-08-2006 17:24
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Member Location: Soest, NL Posts: 18787 Joined: 21.07.04 |
First of all, my apologies to Susan. She is right, it fits my description. It's difficult te characterize any of the 400 Tachinids in one sentence. The topcel is not closed, but stalked, meaning the stalk is clearly present. I agree that the difference is gradual, however, this wing venation doen not fit Eriothix. Moreover, the abdomen is more cylindrical (!) and the reddish lateral spots are larger (and therefore less lateral). SO Cylindromyia. I'm not sure about the species. It is either C. interrupta or auriceps. I seem to see small scutellar apical bristle, maybe this can be checked on the original photo (?). They are small, no problem. In that case, it would be auriceps, which is absent in Finland (Kahis) but present in Sweden (www.faunaeur.org). On the other hand, the pattern on the thorax suggests interrupta (in which case apical scutellars should be absolutely absent). However, difficult to see the thoracic pattern on the picture. So, one of those Theo Zeegers |
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| Kahis |
Posted on 16-08-2006 18:21
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Member Location: Helsinki, Finland Posts: 1999 Joined: 02.09.04 |
Hi! I have a copy Christer Bergstr?m's master list of provincial records for Swedish Tachinidae (very much unofficial, sorry). It lists ?sterg?tland as the northernmost place where C. auriceps is found. Kahis |
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| Zeegers |
Posted on 16-08-2006 19:12
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Member Location: Soest, NL Posts: 18787 Joined: 21.07.04 |
Great. My geographical knowledge of Fennoscandia is insufficient to grasp the consequence. So, my turn to ask a simple question is Stockholm north or south of Ostergotland ? Theo |
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| Kahis |
Posted on 16-08-2006 19:20
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Member Location: Helsinki, Finland Posts: 1999 Joined: 02.09.04 |
North, by some 200 km.
Kahis |
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| Zeegers |
Posted on 16-08-2006 20:30
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Member Location: Soest, NL Posts: 18787 Joined: 21.07.04 |
So I saw the thorax right and there are no apical scutellars. I'm quite satisfied. Thanks Theo |
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| amaira |
Posted on 16-08-2006 22:21
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Member Location: Stockholm Sweden Posts: 414 Joined: 13.08.06 |
Cylindromyia interrupta. You are fantastic!  Thanks. |
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