Thread subject: Diptera.info :: Minettia (rivosa/fasciata?)
Posted by Dmitry Gavryushin on 06-07-2006 07:56
#1
July 04, 2006.
Size around 3mm.
Could this one be the same as the fly in a thread by Vadet:
http://www.diptera.info/forum/viewthread.php?forum_id=5&thread_id=36&pid=102#post_102
Posted by Dmitry Gavryushin on 06-07-2006 07:57
#2
Another view.
Posted by David Gibbs on 06-07-2006 11:12
#3
This is
Chamaemyia and looks very like
C. fasciata
Posted by Dmitry Gavryushin on 06-07-2006 11:16
#4
OK many thanks David
Posted by Paul Beuk on 06-07-2006 11:53
#5
This is what I knwo of
Chamaemyia with black abdominal bands:
* Third antennal segment darkened apically, tarsi completely yellow, as a whole more greyish dusted. ->
fasciata
* Third antennal segment yellow, last tarsal segment darkened, more yellowish grey dusted. ->
elegans
I am not quite sure where that leaves us, with apparently all yallow antennae, all yellow tarsi and greyish dusted body. Score 2-1 for
fasciata, I guess.
Posted by David Gibbs on 06-07-2006 16:45
#6
specimens i have named as
fasciata have entirely yellow 1st flagellomere and look just like the above photo.
Is there an error in Collin's 1966 key? he says ?More yellowish-grey species with third antennal joint distinctly darkened towards tip??
elegans Pnz.
Whitish-grey species with third antennal joint almost entirely yellow?.
fasciata Lw.?
Posted by Paul Beuk on 07-07-2006 07:29
#7
Well, the family Chamaemyiidae is notoriously difficult. Recent work on the European fauna has only been done by Tanasiichuk and I think I took this from an older work by him. In a more recent work on the Diptera of the Russian Far East (2001) there is one species with banded abdomen and it is refered to as:
Ch. fasciata Lw. (
elegans Tanas., non Panzer)
That might mean that Collin (and you) are right and that I followed a wrong interpretation by Tanasiichuk. I will see if I can find out more.