Thread subject: Diptera.info :: Ephydridae ID? -> Coenia cf. curvicauda
Posted by bgmot on 10-09-2017 12:49
#1
Russia, Rostov region, 4mm, 9 september
Edited by bgmot on 10-09-2017 15:32
Posted by bgmot on 10-09-2017 12:49
#2
2)
Posted by Tony Irwin on 10-09-2017 14:56
#3
This is a
Coenia species, probably
curvicauda, but I'm not familiar with the Russian species
vulgata.
Edited by Tony Irwin on 10-09-2017 14:58
Posted by bgmot on 10-09-2017 15:35
#4
Thanks, Tony!
Posted by jhstuke on 10-09-2017 19:45
#5
Dear Tony!
I wonder how it is possible to exclude Coenia palustris - do you have any characters to distinguish palustris and curvicauda without genitalia? Both species should occur around Rostov I suppose.
Jens-Hermann
Posted by Tony Irwin on 10-09-2017 21:17
#6
Hi Jens-Hermann. You will note I said "probably". ;)
C.palustris usually have pale halteres,
C.curvicauda are usually dark.
C.palustris have green or bronze reflections on the abdomen,
C.curvicauda have pink or copper reflections.
Of course I like to check genitalia to be sure. Female ventral receptacles are useful -
curvicauda has a narrow "neck" before the cap,
palustris lacks the "neck".
Posted by jhstuke on 12-09-2017 19:19
#7
Thank you very much for the important comments concerning the identification of Coenia!
Jens-Hermann