Diptera.info

Posted by jorgemotalmeida on 09-06-2007 16:00

Hi

These photos ARE NOT mine, and they were gently authorized by a friend of mine

* locality - Montemor-o-Novo - ?vora - PORTUGAL
* date - 2007.06.09
* size - 4 mm (small fly)
* habitat - urban
* substrate - wall

It is a very flat fly, and sometimes runs... It doesn?t like naphthalin. :D lol

It is a Hippoboscidae fly, BUT which one? :) I hope you could tell more with these photos.

The photos were taken under stereomicroscope by my friend.

Edited by jorgemotalmeida on 09-06-2007 16:04

Posted by jorgemotalmeida on 09-06-2007 16:10

this fly has white color in ventral part of the legs except the last segments in the hind legs that are black; and, in all legs, it is black in dorsal part.

Edited by jorgemotalmeida on 09-06-2007 16:12

Posted by jorgemotalmeida on 09-06-2007 19:40

Tony Irwin wrote:
Crataerina pallida - a parasite of the swift (Apus apus)

hi Tony

thanks. But I must say that I was comparing with other photos in the net, and if these two links are right about Crataerina pallida...
http://img-x.foto...579020.jpg
and
http://aramel.fre...lida-5.jpg

it has some differences. For example, in the photos we can see that they have some constriction in thorax before the wings. In the fly of my friend there is no constriction. The proportion of the eyes with the head is much different.

Or the fly in those links have wrong ID?

Which are the definitive characters for this species? Thank you! I'm open to the discussion.

More one info: where the fly appeared there are two very common species: Passer domesticus and Hirundo rustica, AND also there are Tyto alba and Strix alluco

Edited by jorgemotalmeida on 09-06-2007 19:46

Posted by Tony Irwin on 09-06-2007 23:17

My mistake! :o
You are quite right, Jorge - I was mislead by the wings, which have not developed properly in this individual. I think this is an Ornithomyia species. I don't think we can take it much further with this photo. Have you any other shots? (preferably of a specimen with fully expanded wings!;))

Posted by Zeegers on 10-06-2007 09:49

Please, try to dim the light somewhat.
It is now impossible to tell whether the thorax is uniformely coloured or not. It should be in Ornithomyia, but should not in Hippobosca. BOth make some sense, given the locality.

Theo