Thread subject: Diptera.info :: tachinidae?

Posted by paqui on 23-11-2005 18:20
#1

it seems tachinidae to me (?), about 6mm, cylindrical abdomen, hairy. I beg you pardon, I have no camera, so this is a bad scan!
www.diptera.info/forim/5-1018-1.jpg

Edited by paqui on 23-11-2005 18:21

Posted by paqui on 23-11-2005 18:22
#2

muscidae? calliphoridae? I still have problems with these families
www.diptera.info/forim/5-1018-2.jpg

Posted by paqui on 23-11-2005 18:24
#3

I think I?m sure this is tachinidae; cylindrical abdomen too, but bigger (a little more than 1cm), hairy too
www.diptera.info/forim/5-1018-3.jpg

Posted by Zeegers on 24-11-2005 09:57
#4

Hi Nigella.

Sorry, but the picts are too small to give a definite opinion.
But first impression is that most, if not all, are actually Sarcophagidae or Calliphoridae.

A very very crude, but nevertheless quite effective rule of thumb goes like this:

Arista bare -> Tachinidae (or Sarcophagidae Miltogramminae)
Arista plumuse -> Sarcophagidae / Sarcophaginae, Calliphoridae or Muscidae

If all the animals in your pictures have plumose arista, most will not be Tachinids


Theo

Posted by paqui on 24-11-2005 18:50
#5

thanks for the effort! I was only considering the big bristles at the end of the abdomen :)

Posted by Zeegers on 24-11-2005 20:09
#6

so, what about the arista ?
Bare or plumose ?

Since you asked, now I would like to know


Theo

Posted by Andre on 25-11-2005 01:37
#7

Arista (Theo means allmost) bare can also mean Anthomyiidae. More slender species. But not on these pictures, that's quite clear.

Posted by paqui on 25-11-2005 17:51
#8

I?ve read there is a exception in tachinidae, but I?m not sure if it?s exoristinae or just exorista they have the arista not bare; I still have no lenses, maybe next week I?ll see

thanks everybody :)

Posted by Zeegers on 25-11-2005 22:55
#9

The exceptions are Dexiini and some Tachininae, Thelaira being the most prominent example. Dexiinae have, in general, long legs and a distinct longitudinal facial keel. But my advice is: start understanding Sarcophaginae, then you will pick out Dexiini in due time.


Theo