Thread subject: Diptera.info :: Tachinidae - Phasia pusilla
#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)
#2
Looks like frontal bristles are in one row only, I think Ph. pusilla.
Nikita
Posted by
ChrisR on 30-10-2006 20:02
#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).
#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 20:26
#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.
#6
"brown" and "without" => pusilla
thanks again
Frank
Posted by
Zeegers on 31-10-2006 18:38
#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 00:47
#8
Good point - in general my opinions are based on English specimens
#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