Thread subject: Diptera.info :: Tachinidae - Phasia pusilla
Posted by Frank Koehler on 30-10-2006 20:12
#1
Nikita Vikhrev wrote:
Hi Frank. I think, yes, all Anthomyiidae, exclude the last. Last is Tachinidae, male of Phasia barbifrons or Phasia pusilla. Nikita
Here ist it again, including a second pq photo (very busy specimen).
Thanks to Nikita and thanks in advance for more comments
Frank
#6642 Germany / NRW: Swisttal-Heimertzheim, IX.2003 (small and very nervous)
Edited by Frank Koehler on 31-10-2006 01:51
Posted by Nikita Vikhrev on 30-10-2006 20:22
#2
Looks like frontal bristles are in one row only, I think Ph. pusilla.
Nikita
Posted by ChrisR on 30-10-2006 21:02
#3
Yeah, the frontal area is nice and shiny so it looks clear of hairs and should be
P.pusilla but I like to see the haltare to be really sure it isn't
barbifrons (yellow haltare). ;)
Posted by Frank Koehler on 30-10-2006 21:17
#4
Thanks Nikita & Chris!
Haltare? Im not shure - the fly was moving very fast and most of the photos are not very sharp. It seems to be white (light yellow white), but to be shure I had to search and examine the specimen. Best regards Frank
Posted by ChrisR on 30-10-2006 21:26
#5
Hi Frank, If you have the specimen just check the colour of the haltare: yellow=
P.barbifrons, brown=
P.pusilla. Then to make sure, check the parafrontal area and look for hairs between the row of stout bristles and the edge of the eye - with hairs=
barbifrons, without=
pusilla. :)
Posted by Frank Koehler on 31-10-2006 01:50
#6
"brown" and "without" => pusilla
thanks again
Frank
Posted by Zeegers on 31-10-2006 19:38
#7
Warning:
The haltere-feature as mentioned by Chris is OK in Britain, but not 100 % in Switzerland.
The 'halter brown -> pusilla' part is correct even in Switzerland.
But in Central Europe there are species with yellow halteres and still facial bristles as in pusilla.
Anyway, this one should be fine
Theo
Posted by ChrisR on 01-11-2006 01:47
#8
Good point - in general my opinions are based on English specimens :)
Posted by Frank Koehler on 02-11-2006 00:31
#9
Thanks a lot again!
If I climb on our roof, I can see "Raperland" - if I would have a good telescope and exellent weather ;)
Best regards
Frank
Edited by Frank Koehler on 02-11-2006 00:34