Diptera.info :: Identification queries :: Diptera (adults)
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 Ariasella lusitanica, Hybotidae
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| Paul Beuk |
Posted on 23-12-2009 21:18
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 Super Administrator Location: Netherlands Posts: 19363 Joined: 11.05.04 |
http://www.dipter...?cat_id=24
Edited by Paul Beuk on 09-02-2012 12:50 Paul - - - - Paul Beuk on https://diptera.info |
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| Calilasseia |
Posted on 23-09-2011 01:51
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 Member Location: Near Liverpool, UK Posts: 90 Joined: 20.09.11 |
So in Rui's photograph of the male of this species above, the rod-like structures emerging from the thorax are vestiges of the first pair of wings, and not the halteres? Only it would be interesting to put it mildly, if there was a fly with completely absent wings, but halteres still extant! (Now awaits someone to tell me that such a fly species actually exists ... !!!) |
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| John Carr |
Posted on 23-09-2011 04:19
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 Member Location: Massachusetts, USA Posts: 10172 Joined: 22.10.10 |
Chionea (Limoniidae) has halteres but no wings. Chironomidae with reduced wings may or may not have halteres. http://www.dipter...to_id=6855 |
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| Rui Andrade |
Posted on 09-02-2012 00:32
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 Member Location: Portugal Posts: 3122 Joined: 19.06.07 |
The paper on the behaviour of this species is finally out. It was published in the Bulletin of the Royal Belgian entomological Society. Hopefully Paul will soon put it online here on diptera.info. |
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| Paul Beuk |
Posted on 09-02-2012 12:48
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Super Administrator Location: Netherlands Posts: 19363 Joined: 11.05.04 |
It can be found HERE. Thanks for submitting it for download. 
Paul - - - - Paul Beuk on https://diptera.info |
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| John Carr |
Posted on 10-02-2012 01:01
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Member Location: Massachusetts, USA Posts: 10172 Joined: 22.10.10 |
The habit of males mounting males reminds me of the genus Chasmatonotus of Chironomidae. This genus is winged but does not like to fly. It probably evolved on isolated mountaintops during an ice age. According to a paper I read, "The adults scurry around on the leaves of broad-leafed plants, shrubs and small trees within the habitat sites. When two adults encounter each other they 'tumble' together for a second or two before moving on. As the adults do no swarm for the purpose of mating, this behavior is probably associated with identifying a possible mate." Possibly the habit of mounting everything in sight is typical of Diptera that do not fly. |
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