Thread subject: Diptera.info :: unknown fly -> Helina sp.
Posted by javig on 16-02-2008 22:17
#1
Granada, Southern Spain, 1500 m. 16 February 2008
Thanks!
Edited by javig on 17-02-2008 00:47
Posted by jorgemotalmeida on 16-02-2008 22:29
#2
Muscidae..
Posted by Stephane Lebrun on 16-02-2008 22:45
#3
It's a female
Helina. Could be
Helina reversio, but impossible to be sure.
Regards.
Posted by Stephane Lebrun on 16-02-2008 23:02
#4
Hmm, I see an ad on mid tibia, so not
Helina reversio.
Helina sp.
Posted by javanerkelens on 16-02-2008 23:02
#5
I am a beginner....but I thought is was a Coenosia tigrina ?
Where am I wrong in my thoughts ??
Greatings Joke
Posted by javig on 16-02-2008 23:08
#6
I think Coenosia are small, this is a bit larger than Musca domestica...
Stephane, I have more photos... what characters are important?
thanks!
Posted by Stephane Lebrun on 16-02-2008 23:16
#7
Joke,
Coenosia have 1 dorsocentral before suture, 3 beyond (1+3dc). Here, 2+4.
Coenosia don't have prealar setae. Here there is one.
Coenosia have 3 katepisternal (=sternopleural) setae arranged in equilateral triangle. Here, not the case.
...Coenosia have only 1 orbital bristle, here two...
Javig, only a collected specimen could give a definite ID with this genus.
Posted by jorgemotalmeida on 16-02-2008 23:18
#8
Not Coenosia.
prealar seta is absent in ALMOST ALL Coenosinae.. ;)
and this fly has prealar seta.
Posted by jorgemotalmeida on 16-02-2008 23:19
#9
Stephane Lebrun wrote:
Joke,
Coenosia have 1 dorsocentral before suture, 3 beyond (1+3dc). Here, 2+4.
Coenosia don't have prealar setae. Here there is one.
Coenosia have 3 katepisternal (=sternopleural) setae arranged in equilateral triangle. Here, not the case.
...Coenosia have only 1 orbital bristle, here two...
Javig, only a collected specimen could give a definite ID with this genus.
and Joke... see the overview section for these terms. :P
Posted by javanerkelens on 16-02-2008 23:29
#10
Luckely it is Sunday tomorrow, so I can translate everythin tomorrow in Dutch hole day....:D:D:D
Thanks and I wil study it !!!!
Joke
Posted by Nikita Vikhrev on 18-02-2008 09:51
#11
Stephane, I think that
Helina reversio has
ad on mid tibia. Why do you think it hasn't?
Posted by Stephane Lebrun on 18-02-2008 11:09
#12
In d'Asis Fonseca key, couplet 39, page 51:
...Middle tibia without an anterodorsal bristle...duplicata
Unless
duplicata is not the old name for
reversio in this book ?
Posted by Nikita Vikhrev on 18-02-2008 16:16
#13
Yes, Anthomyia duplicata (Meig.) = Helina duplicata =
Helina reversio (Harris). And indeed, very variable species :o