Diptera.info :: Identification queries :: Diptera (adults)
Who is here? 1 guest(s)
 One more Geomyza
|
|
| Nikita Vikhrev |
Posted on 17-08-2006 15:07
|
 Member Location: Moscow, Russia Posts: 9480 Joined: 24.05.05 |
Moscow region, 17 aug, 3mm Too dark Nikita Vikhrev attached the following image:  [65.55Kb] Nikita Vikhrev - Zool Museum of Moscow University |
|
|
|
| Nikita Vikhrev |
Posted on 17-08-2006 15:14
|
|
Member Location: Moscow, Russia Posts: 9480 Joined: 24.05.05 |
second image
Nikita Vikhrev attached the following image:  [55.15Kb] Nikita Vikhrev - Zool Museum of Moscow University |
|
|
|
| Jan Willem |
Posted on 17-08-2006 19:08
|
 Member Location: Waalwijk, The Netherlands Posts: 2160 Joined: 24.07.04 |
Uhmmm, I don't know !! This is a very interesting one!! I hope you collected this specimen!! If not, please go back to there and collect a few . Who knows, maybe Geomyza vikhrevi . Storage in alcohol might not be such a bat idea after all.You certainly collect interesting material! Jan Willem |
|
|
|
| Nikita Vikhrev |
Posted on 17-08-2006 19:59
|
|
Member Location: Moscow, Russia Posts: 9480 Joined: 24.05.05 |
To collect it I had to stop myself on this two lower than medium quality photos. One of a kind so far. Nikita Nikita Vikhrev - Zool Museum of Moscow University |
|
|
|
| Jan Willem |
Posted on 17-08-2006 21:38
|
|
Member Location: Waalwijk, The Netherlands Posts: 2160 Joined: 24.07.04 |
Hi Nikita, Does this specimen have 1+2 dc or 1+3 dc? On the first picture it looks like ther are three post sutural dorsocentral bristles of which the first one is rather minute, but it is difficult to judge from your picture. Jan Willem |
|
|
|
| Nikita Vikhrev |
Posted on 17-08-2006 22:20
|
|
Member Location: Moscow, Russia Posts: 9480 Joined: 24.05.05 |
It is the problem. My test - clearly 1+2. May be both dc of first postsutural pair are broken? Neither hypopleural seta. Arista long plumose dorsaly, very short ventraly. tp - darkened, ta - clear, but vein itself black.
Nikita Vikhrev - Zool Museum of Moscow University |
|
|
|
| Jan Willem |
Posted on 18-08-2006 07:05
|
|
Member Location: Waalwijk, The Netherlands Posts: 2160 Joined: 24.07.04 |
Seems not to match any species I know (and I have seen most of the species described). I would love to have a look at this specimen! Jan Willem |
|
|
|
| Nikita Vikhrev |
Posted on 18-08-2006 12:00
|
|
Member Location: Moscow, Russia Posts: 9480 Joined: 24.05.05 |
Hi Jan. I have news. First fly was collected in 3-4m from my countryhouse. Taday I collected 3 more in 3 km from house under my "Medetera tree". 2 of them became to copulate inside my exgauster and did it according all Geomyza species I so far observed during good 60 min. So we have both sexes of same species at least. I'll write again after I pin them and look under microscop. Nikita Nikita Vikhrev - Zool Museum of Moscow University |
|
|
|
| Jan Willem |
Posted on 18-08-2006 12:52
|
|
Member Location: Waalwijk, The Netherlands Posts: 2160 Joined: 24.07.04 |
Hi Nikita, That's good news indeed. Having both sexes makes a positive identification easier. Please show pictures of the specimens once they have been pinned! I'm getting more and more curious  .Jan Willem |
|
|
|
| Nikita Vikhrev |
Posted on 18-08-2006 13:50
|
|
Member Location: Moscow, Russia Posts: 9480 Joined: 24.05.05 |
First - one life photo, all three almost as small as first "G. apicalis" and obviosly larger that yesterday's Geomyza
Nikita Vikhrev attached the following image:  [57.85Kb] Nikita Vikhrev - Zool Museum of Moscow University |
|
|
|
| Nikita Vikhrev |
Posted on 18-08-2006 14:02
|
|
Member Location: Moscow, Russia Posts: 9480 Joined: 24.05.05 |
Still I can't find 3-d pair of postsutural dc (or 3-d dc have to be almost as thin and short as ac).
Nikita Vikhrev attached the following image:  [39.4Kb] Nikita Vikhrev - Zool Museum of Moscow University |
|
|
|
| Nikita Vikhrev |
Posted on 18-08-2006 14:09
|
|
Member Location: Moscow, Russia Posts: 9480 Joined: 24.05.05 |
Copulation inside my exgauster. O, sorry, Black just has writen my that I have to use the word "aspirator". In Deuchland - exgauster? Nikita Vikhrev attached the following image:  [62.28Kb] Nikita Vikhrev - Zool Museum of Moscow University |
|
|
|
| Jan Willem |
Posted on 18-08-2006 14:48
|
|
Member Location: Waalwijk, The Netherlands Posts: 2160 Joined: 24.07.04 |
Your last pictures show very apicalis-like specimens. If you would examine the genitalia I expect these will lead you to G. apicalis. The wings of the specimen on your first picture are very wide for G. apicalis. However I would not be surprised if it turnes out to be conspecific with G. apicalis. It is a highly variable species (in colouration, size and width of the wings)! I have not seen apicalis specimens with wings as wide as in the specimen on your first pictures though. For as far as I know exhauster and aspirator can both be used. Jan Willem |
|
|
|
| Dmitry Gavryushin |
Posted on 18-08-2006 15:45
|
 Member Location: Moscow region, Russia Posts: 3338 Joined: 17.10.05 |
Non-entomological: well it's not my native language, yet I would still insist on 'aspirator', since it seems to me that 'exhauster' generally means a kind of a vacuum cleaner or similar gadget that is used 'for drawing out noxious air or waste material by means of a partial vacuum'. |
|
|
|
| Nikita Vikhrev |
Posted on 18-08-2006 17:46
|
|
Member Location: Moscow, Russia Posts: 9480 Joined: 24.05.05 |
Thank you Jan. So 1+3. Well, apicalis isn't bad too. Nikita Nikita Vikhrev - Zool Museum of Moscow University |
|
|
|
| Kahis |
Posted on 18-08-2006 19:06
|
 Member Location: Helsinki, Finland Posts: 1999 Joined: 02.09.04 |
...or just take the cheapest way out and call it a pooter. The aspirator I mean, not the fly. For a more formal word I'd side with Black, apirator sounds better than exhauster. If using an aspirator leaves you exhausted, I would recommend an immediate medical check
Kahis |
 |
|
| Susan R Walter |
Posted on 19-08-2006 09:02
|
 Member Location: Touraine du Sud, central France Posts: 1802 Joined: 14.01.06 |
I would use pooter, as Kahis suggests, for all but the most formal discussion. Aspirator is better for very formal circumstances, as this implies air intake. Exhauster implies air expulsion so I think is not quite the right word. However, don't worry about it too much - I am sure everyone knew what you were talking about.
Susan |
|
|
|
| Dmitry Gavryushin |
Posted on 25-08-2006 11:03
|
|
Member Location: Moscow region, Russia Posts: 3338 Joined: 17.10.05 |
Thanks for you explanations Jere and Susan, although I went a little bit too linguistic |
|
|
|
| Jump to Forum: |