Diptera.info

Posted by Sundew on 22-08-2011 14:14

Hi,
On 1st August I watched a small dark fly with petiolate wing venation, and my first thought was, "a boring Rhinophora lepida again." However, now I see that the big antennae look tachinidish! So my second idea is Leucostoma, but are the calypters big enough? For a poor "just by jizz" identifier this task is too big, so I need help!
(I took only a few, not too good, pics, as I had already enough Rhinophora stuff. I wished I had taken a closer look! :|)
Many thanks, Sundew

Edited by Sundew on 23-08-2011 20:43

Posted by ChrisR on 23-08-2011 09:33

I guessed Rhinophora lepida - from size & general appearance but you might have something that looks similar there that I am not aware of - let's wait for theo or Erikas :)

Posted by Stephane Lebrun on 23-08-2011 10:18

The calypters are adjacent to the lateral margin of scutellum : this is a Tachinidae, in the Wagneriini tribe I suppose.

Posted by sd on 23-08-2011 17:59

Is it not Periscepsia? I have been looking for this here in Suffolk on the coast without success so far:|

Steve

Posted by jorgemotalmeida on 23-08-2011 18:08

good tip - calypters are very small in Rhinophoridae (and almost all have petiole).
I wonder about Wagneria...

Posted by ChrisR on 23-08-2011 18:43

I have to admit that the Wagneriini are a bit of mystery to me - with the exception of Ramonda spatulata I see them very rarely :(

Posted by Sundew on 23-08-2011 19:18

Very interesting comments indeed! The Periscepsia images in the gallery seem to be a close match. For comparison, I add a picture of Rhinophora lepida. There are a lot of differences not only concerning the calypters, but also antenna size and bending of the wing veins. And the Tachinid's wings are a bit darkened along the outer edge.

Edited by Sundew on 23-08-2011 20:39

Posted by neprisikiski on 23-08-2011 19:46

I think, it is a Ramonda sp., in Wagneria depression of tergite 2 does not reach the tergite margin.

Edited by neprisikiski on 23-08-2011 19:47

Posted by Sundew on 23-08-2011 20:36

#10

Dear friends, meanwhile I read all I could find about the Wagneriini in the forum archive :S. This is not the first thread that came to an (open) end with Ramonda versus Wagneria versus Periscepsia. We can exclude Ramonda spathulata, and that's it. The pictures show by far too few details to allow a well-based guess. I shall label them "cf. Ramonda" and add all your helpful remarks. The most important I learned is not to carelessly put all the little petiolate blackies in the Rhinophora-pot. I'll keep Wagneriini in mind forever! Many thanks to you all.

Edited by Sundew on 23-08-2011 20:38

Posted by Zeegers on 06-11-2011 17:38

#11

It is probably a Ramonda, but I can't be sure.

All these Wagneriini (with the exceptions mentioned above) are pretty similar !

Ramonda prunaria is the most common one (except for spathulata, ruled out above)

Theo