Thread subject: Diptera.info :: Brachycoma devia

Posted by crex on 06-06-2006 19:27
#1

From today, just north of Stockholm, Sweden. Can you tell which species this is? Thanx.

Edit: Changed subject (Unknown diptera)
Edit: Changed subject (Sarcophagidae sp)

Edited by crex on 07-06-2006 22:03

Posted by crex on 06-06-2006 19:27
#2

Another view of the same individual.

Posted by crex on 06-06-2006 19:28
#3

Yet another view of the same individual.

Posted by Nikita Vikhrev on 06-06-2006 20:00
#4

I'm afraid species level is impossible:
Sarcophagidae, Sarcophaginae - that is all.
Nikita

Posted by crex on 06-06-2006 22:43
#5

Nikita Vikhrev wrote:
I'm afraid species level is impossible:
Sarcophagidae, Sarcophaginae - that is all.
Nikita


Ok, thank you. I wonder what would make it recognisable?

Posted by Nikita Vikhrev on 06-06-2006 22:50
#6

Ok, thank you. I wonder what would make it recognisable?

Micropreparation and inverstigation of male genitalia.
In case of female - rearing eggs, ID male (see above) and than you will get famale of known species.
;)

Posted by crex on 06-06-2006 23:03
#7

Nikita Vikhrev wrote:
Micropreparation and inverstigation of male genitalia.
In case of female - rearing eggs, ID male (see above) and than you will get famale of known species.
;)


Ohh, I see. Pretty useless taking photos of these flies then ...

Posted by Paul Beuk on 07-06-2006 07:10
#8

crex wrote:
Ohh, I see. Pretty useless taking photos of these flies then ...


Not quite. You might catch some nice feature of the family, you might get some very nice pictures and you might you pick that one species that does have that special something that makes it identifiable.
Also, it gives an impression on where the species can be found (at least if the pictures are under natural conditions), positions they take, etc. And youcan always try to catch it afterwards and get it identified. :D

Posted by Zeegers on 07-06-2006 08:21
#9

Not so negative. This case might be an exception.

The arista is ... bare ?? At least, it looks bare (could we get a closeup ?)
In that case it is not Sarcophagini, but Wohlfartiini.
In most cases... Brachycoma devia.
In which case the palpi should be dark, as in (most) Sarcophagini.

If the palpi are bright yellow, we are dealing with Eurychaeta ( = Helicobosca).

Hope this helps


Theo Zeegers

Posted by crex on 07-06-2006 10:05
#10

Zeegers wrote: ... arista is ... bare ?? ... palpi are bright yellow ...


Ok, thanks both. I'll check my photos when I get back home, but first I have to learn what arista and palpi are :)

Posted by Paul Beuk on 07-06-2006 10:36
#11

See: arista and palpi. I will add images later. :)

Posted by crex on 07-06-2006 20:08
#12

Close-up of the head, view one.

Posted by crex on 07-06-2006 20:08
#13

Close-up of the head, view two.

Posted by crex on 07-06-2006 20:10
#14

The arista seems to be without hair even if it is hard to tell from this poor close-up.

Posted by Zeegers on 07-06-2006 21:10
#15

And the palpi are dark.

So Brachycoma devia it should be.

Parasite in nests of bumble-bees.


Theo

Posted by crex on 07-06-2006 22:04
#16

Nice, thanks again.