Diptera.info

Posted by Pierre55 on 03-01-2008 13:42

Pic taken on 02.09.2005 in Belgium.
Graphomya sp ?
Thx in advance :)

Edited by Pierre55 on 03-01-2008 13:51

Posted by Pierre55 on 03-01-2008 13:53

Many thanks Jorge : I updated the title... :)
I thought Tachinidae had long hair on their abdomen...

Posted by jorgemotalmeida on 03-01-2008 13:58

there are exceptions :P this is one of them. :P

Posted by ChrisR on 03-01-2008 14:20

Pierre - the phasiines (Gymnosoma, Phasia, Ectophasia, Cylindromyia etc etc - there are lots of genera) are very atypical tachinids - often having bright colours and just a slightly hairy body. Novices often confuse them with syrphids because they behave similarly and sit on flowers a lot.

They are still tachinids though because they are all parasitoids; they are calyptrate flies; and they (99%!) have a strong subscutellum. :)

Posted by Pierre55 on 03-01-2008 14:27

Okay, thanks to this new tip :-)
But, and that's strange, I don't have many problems with syrphids : I can recognize them (the family, sometimes the genius) and I don't confuse them with other families...

Again my thanks, Chris :-)

Posted by Zeegers on 03-01-2008 19:45

Ever seen Hammersmidtia ??
Still sure you don't confuse Syrphidae with other families ?

Theo

Posted by Pierre55 on 03-01-2008 20:17

@Theo : Don't know it and don't find it on Fauna Europaea nor in my book about Syrphidae...
Only 1 occurence in Google and the site is not reachable...
Is it another name for it ?

Posted by Gerard Pennards on 03-01-2008 20:56

Yes, You want to try HammersCHmidtia ferruginea! ;)
greetings

Posted by cosmln on 03-01-2008 21:25

#10

Zeegers wrote:
Ever seen Hammersmidtia ??
Still sure you don't confuse Syrphidae with other families ?

Theo

is one here that i have posted:
http://www.dipter...ad_id=7807
sorry for the quality of the photos

cosmln

Posted by Pierre55 on 03-01-2008 21:28

#11

Thanks Gerard :)
I read that it is in UK endangered... and not known in Belgium : so I don't think I will encounter it. But that's true, it seems difficult to believe that it is a syrphid :)

Posted by Juergen Peters on 04-01-2008 00:09

#12

Hello!

Chris Raper wrote:
the phasiines (Gymnosoma, Phasia, Ectophasia, Cylindromyia etc etc - there are lots of genera) are very atypical tachinids - often having bright colours and just a slightly hairy body.

And in this genus also the name reflects this ;): Gymnosoma means "naked body" (or abdomen).