Diptera.info :: Identification queries :: Diptera (adults)
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 Geomyza hendeli?
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| Nikita Vikhrev |
Posted on 16-08-2006 22:00
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 Member Location: Moscow, Russia Posts: 9304 Joined: 24.05.05 |
Moscow region, 16 aug, very small 1,5-2mm. 1+2 dc, arista dorsaly long plumose. Nikita Vikhrev - Zool Museum of Moscow University |
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| Paul Beuk |
Posted on 16-08-2006 22:29
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 Super Administrator Location: Netherlands Posts: 19311 Joined: 11.05.04 |
Now with image?
Paul - - - - Paul Beuk on https://diptera.info |
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| Nikita Vikhrev |
Posted on 17-08-2006 08:28
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Member Location: Moscow, Russia Posts: 9304 Joined: 24.05.05 |
Sorry
Nikita Vikhrev attached the following image:  [52.18Kb] Nikita Vikhrev - Zool Museum of Moscow University |
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| Jan Willem |
Posted on 17-08-2006 13:42
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 Member Location: Waalwijk, The Netherlands Posts: 2134 Joined: 24.07.04 |
Hi Nikita, Are you really sure there are only 1+2dc present? You have to take care on this character. I have seen many specimens with narrow wings in which there seemed to be only two post-sutural dorsocentral bristles present. In most cases there actually were three. The first one was strongly reduced but still present in those cases. Studying the genitalia might be a wise! TIP: Next time you mount a specimen, I would advice you to glue the side of the thorax on the tip of the cardboard mounting point and leave the head and abdomen free. That makes it much easier if you need to cut the tip of the abdomen to boil it in a 10% KOH solution! Jan Willem |
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| Nikita Vikhrev |
Posted on 17-08-2006 15:55
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Member Location: Moscow, Russia Posts: 9304 Joined: 24.05.05 |
Well, Jan, I still couldn't find 1+3, but if realy 1+3 that what we have? And once again, I've never seen Geomyza small like this one. Nikita. Re: TIP. It isn't my best pined Geomyza... Nikita Vikhrev - Zool Museum of Moscow University |
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| Jan Willem |
Posted on 17-08-2006 19:56
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Member Location: Waalwijk, The Netherlands Posts: 2134 Joined: 24.07.04 |
Hi Nikita, As far as I can judge from the photographs the wings look rather narrow which would point to Geomyza apicalis. This is a species that is highly variable in size and colouration. The best to do is study the genitalia in this case! Jan Willem |
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| Nikita Vikhrev |
Posted on 17-08-2006 21:07
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Member Location: Moscow, Russia Posts: 9304 Joined: 24.05.05 |
Hi Jan. It is for the same place where I observe my Medetera = photo where I found O. punctella = where I collected first G. apicalis (by the way all G. apicalis I've seen, I've seen on tree bark of this tree). But realy tiny fly. Nikita Nikita Vikhrev - Zool Museum of Moscow University |
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| Jan Willem |
Posted on 17-08-2006 22:35
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Member Location: Waalwijk, The Netherlands Posts: 2134 Joined: 24.07.04 |
Hi Nikita, I have seen very tiny specimens of G. apicalis, in a series of apicalis specimens from the same locality ranging from 2 mm - 3.2 mm. So I'm not surprised about tiny specimens of this species. But all I can say to make sure is that the genitalia need to be studied. Jan Willem |
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