Thread subject: Diptera.info :: Big Tachinidae
#1
July 17, 2006.
Size 11mm.
Flew around me much like some Tabanus around a cow (caught 3 specimens).
Posted by
ChrisR on 18-07-2006 13:21
#4
Looks like a male
Eurithia sp. to me, which is good because the genitalia on this group are very large and distinctive. Can you hook-out and photo the genitalia and let us see those?
If not, then it gets a bit more difficult and speculative.
Posted by
shar on 18-07-2006 14:48
#5
That is a big fly indeed. And what an incredible pictures again. Maybe we can call this fly: the cactusfly
#6
Ohh, I thought that one would be easy... Well Chris, maybe I'm ready to deal with genitalia, but I need some basic instructions, first, how can I tell a male from a female?...
Posted by
ChrisR on 19-07-2006 15:48
#7
Look at the tip of the abdomen from underneath - the males of
Eurithia will have a large chitinized capsule and if you are careful, while it is still soft, you can lever out the surstylus so that it is more visible. It doesn't need a full genitalia preparation - just do enough so that you can see the shapes of the large bits.
#9
Well Chris all of the three were males. Finally I managed to fix the position through a lot of picking with pins. So I hope this would help.
#10
And a view from above.
Posted by
ChrisR on 22-07-2006 10:32
#11
Ohh, nice work
I'd say you have a very nice specimen of
Eurithia anthophila (male) ... probably the commonest
Eurithia
#12
Thanks a lot Chris