Diptera.info :: Identification queries :: Diptera (adults)
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 Muscidae, Helina setiventris
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| JariF |
Posted on 01-04-2010 16:18
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 Member Location: Helsinki, Finland Posts: 2072 Joined: 20.01.06 |
Hi, here is one more of these strange flies. I am thinking Helina and if I follow the key: meron bare below posterior spiracle, prosternum bare, frons narrower, radial node bare, sternites shining black, setae on sternites 2 and 3 longer than relevant segments, posterior tibia black and sternites shorter than broad we will come to Helina setiventris. Probably I'm wrong (as ususal) but if it is, it will be a good one. The other thing is, that is this Helina at all ? July 17. 2007 Helsinki, Finland. Jari JariF attached the following image:  [118.63Kb] Edited by JariF on 16-04-2010 08:24 |
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| JariF |
Posted on 01-04-2010 16:18
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Member Location: Helsinki, Finland Posts: 2072 Joined: 20.01.06 |
Two more pictures.
JariF attached the following image:  [123.12Kb] |
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| Stephane Lebrun |
Posted on 01-04-2010 17:48
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 Member Location: Le Havre, France Posts: 8248 Joined: 03.03.07 |
It is very likely a male Helina setiventris with these shining black sternites covered with very long hairs. To be really sure, you could pull out the cerci so that we could see their charasterisctic shape.
Stephane. |
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| KWQ |
Posted on 01-04-2010 17:51
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Member Location: Turku, Finland Posts: 208 Joined: 10.12.04 |
Sorry if I interrupt your determination discussion, but I'd just like to point out that the species Stéphane suggested would be a new one for Finland, I guess... |
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| Stephane Lebrun |
Posted on 01-04-2010 18:00
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Member Location: Le Havre, France Posts: 8248 Joined: 03.03.07 |
So it would be worth being confirmed by sending the specimen to me (or someone else).
Stephane. |
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| JariF |
Posted on 01-04-2010 19:57
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Member Location: Helsinki, Finland Posts: 2072 Joined: 20.01.06 |
KWQ wrote: Sorry if I interrupt your determination discussion, but I'd just like to point out that the species Stéphane suggested would be a new one for Finland, I guess... That's why I wrote " a good one"  Jari |
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| JariF |
Posted on 01-04-2010 19:58
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Member Location: Helsinki, Finland Posts: 2072 Joined: 20.01.06 |
I will send the specimen Stephane. Thank's again. Jari |
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| Stephane Lebrun |
Posted on 10-04-2010 13:33
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Member Location: Le Havre, France Posts: 8248 Joined: 03.03.07 |
I have confirmed Helina setiventris without any ambiguity. I attach a picture of the genitalia where the shape of the cercal plate is visible (these are some bad pictures, but I haven't wished to remove the genitalia from the abdomen).
Stephane Lebrun attached the following image:  [99.92Kb] Stephane. |
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| JariF |
Posted on 16-04-2010 08:23
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Member Location: Helsinki, Finland Posts: 2072 Joined: 20.01.06 |
Thank You again Stephane. Now we have a new Helina-species to our fauna again. (Sorry for the delay with my answer. I had a computer crash but now everything is ok again). Jari |
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| KWQ |
Posted on 16-04-2010 09:30
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Member Location: Turku, Finland Posts: 208 Joined: 10.12.04 |
Congratulations! It seems JariF really is about to efficiently continue the late and legendary Mr. Tiensuu's work in collecting (muscids etc.) in the south-eastern corner of Finland (I'm more inclined to the south-west). The only essential difference perhaps is that Tiensuu used a moped and a net and Jari uses a malaise trap and I don't know what his vehicle is  !Thanks also to Stephane for his great help again - Muscidae will probably be one of the priorised families in the upcoming decade in Finnish dipterology - I might predict we could contact you in the future too... |
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| JariF |
Posted on 16-04-2010 17:26
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Member Location: Helsinki, Finland Posts: 2072 Joined: 20.01.06 |
KWQ wrote: The only essential difference perhaps is that Tiensuu used a moped and a net and Jari uses a malaise trap and I don't know what his vehicle is !My collecting vechile Jari JariF attached the following image:  [163.39Kb] |
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