Diptera.info :: Identification queries :: Diptera (adults)
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 Lauxaniidae? - mating (behaviour)
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| Dima DD |
Posted on 05-10-2007 21:06
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 Member Location: St.Petersburg, Russia Posts: 75 Joined: 28.11.05 |
Hello, here are several photos of yellow flies (Lauxaniidae? Sapromyza?) where females demonstrate small translucent "hornlets" extruding from their abdomens at mating. BTW, I've noticed that females play very active role in the courtship (no less than males): they start to attract males (showing this interesting pose with "hornlets" and approaching to partners) immediately after male's arrival at the raspberry leaf. Females frequently raise their forelegs at the process - it is another interesting moment of the show. Russia, near S.-Petersburg (Toksovo), on raspberry-bush, 26.08.2007, 18:30-20:30 Dima At first, female alone (and no males nearby): Dima DD attached the following image:  [69Kb] |
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| Dima DD |
Posted on 05-10-2007 21:06
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Member Location: St.Petersburg, Russia Posts: 75 Joined: 28.11.05 |
Female alone (but male is very close):
Dima DD attached the following image:  [89.85Kb] |
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| Dima DD |
Posted on 05-10-2007 21:07
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Member Location: St.Petersburg, Russia Posts: 75 Joined: 28.11.05 |
Mating:
Dima DD attached the following image:  [103.88Kb] |
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| Dima DD |
Posted on 05-10-2007 21:08
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Member Location: St.Petersburg, Russia Posts: 75 Joined: 28.11.05 |
Another view:
Dima DD attached the following image:  [121.58Kb] |
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| Dima DD |
Posted on 05-10-2007 21:08
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Member Location: St.Petersburg, Russia Posts: 75 Joined: 28.11.05 |
Back view:
Dima DD attached the following image:  [70.53Kb] |
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| Dima DD |
Posted on 05-10-2007 21:09
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Member Location: St.Petersburg, Russia Posts: 75 Joined: 28.11.05 |
...and the last picture - just for fun! 
Dima DD attached the following image:  [54.3Kb] |
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| cosmln |
Posted on 05-10-2007 21:10
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 Member Location: Romania Posts: 956 Joined: 18.03.07 |
don't know about ID but the photo are just WOW. thanks for sharing this. cosmln |
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| jorgemotalmeida |
Posted on 05-10-2007 21:19
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 Member Location: Viseu - PORTUGAL Posts: 9296 Joined: 05.06.06 |
Steve will love this, by sure! I wonder why the female uplift its first pair of legs. Maybe "she" is trying to scare the voyeur...
Edited by jorgemotalmeida on 24-01-2013 02:07 |
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| crex |
Posted on 05-10-2007 22:31
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 Member Location: Sweden Posts: 1996 Joined: 22.05.06 |
Great series of photos! |
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| Kahis |
Posted on 05-10-2007 23:02
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 Member Location: Helsinki, Finland Posts: 1999 Joined: 02.09.04 |
Meiosimyza (=Lyciella) - Lauxaniidae. Kahis |
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| Tony Irwin |
Posted on 05-10-2007 23:15
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 Member Location: Norwich, England Posts: 7261 Joined: 19.11.04 |
Congratulations, Dima - excellent series of photos - I will take much more interest in Lauxaniidae having seen these! 
Tony ---------- Tony Irwin |
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| Steve Gaimari |
Posted on 05-10-2007 23:25
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 Member Location: Sacramento, California, USA Posts: 169 Joined: 08.10.04 |
Simply awesome!! I've seen the eversible glands, but never in action! Thank you for posting such a wonderful series! |
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| Kahis |
Posted on 05-10-2007 23:35
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Member Location: Helsinki, Finland Posts: 1999 Joined: 02.09.04 |
What is known about the pheromones of tephritoid flies? I have seen some pallopterid males collected from traps baited with tortricid (Lepidoptera) pheromones. All males had the aedeagus exposed, so they had clearly died happy  But only single flies were in each trap - if the pheromone was a strong attractant, I'd expect to see hundreds as the Palloptera species is common. So the tortricid pheromone must be very weakly attractive to the males at least at long distances. Perhaps it smells a bit like a short-range female pheromone - like, perhaps, the stuff in those paired glands Kahis |
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| pierred |
Posted on 06-10-2007 05:54
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 Member Location: Paris (France) Posts: 1439 Joined: 21.04.05 |
Terrific pictures!! Thanks for sharing them!!
Pierre Duhem |
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