Diptera.info

Posted by jorgemotalmeida on 19-04-2007 18:43

Hi

* locality - Silgueiros - Viseu - PORTUGAL
* date - 2007.04.18
* size - 7 mm (large fly)
* habitat - openland
* substrate - grass

I think in Myopa sp.

EDIT --->> changed the title "Conopidae fly - Myopa sp." to "Conopidae fly - Myopa buccata" and in 2 May 2007 to a possible "Conopidae fly - Myopa cf. picta (it was M. buccata)" and then in 19th May 2007 changed finally to "Conopidae fly - Myopa picta (male)"

Edited by jorgemotalmeida on 19-05-2007 21:02

Posted by jorgemotalmeida on 19-04-2007 20:07

yes. :) yesterday the temperatures reached almost 30 ?C in some places. :d At least, was about 25 ?C :D (but today is raining and temperatures dropped a little about 20 ?C)

Posted by Juergen Peters on 19-04-2007 20:15

Hello, Jorge!

jorgemotalmeida wrote:
yes. :) yesterday the temperatures reached almost 30 ?C in some places.

Almost? B) Last sunday we had 31 ?C here in northwest Germany! (all time high for April...).

Posted by Tony Irwin on 19-04-2007 21:07

This specimen appears to fit Seguy's (out-of-date) 1928 description of Myopa variegata, but it's not a species we have in Britain, so I can't say for sure. :|

Posted by jorgemotalmeida on 19-04-2007 21:13

hi Tony

Thanks a lot! Which kind of photo you need to be sure about Myopa variegata? :) We need to be sure so gallery can grow more and more. :)

Posted by Tony Irwin on 19-04-2007 21:33

Your photos are great, Jorge! I just need a more up-to-date paper or a reference collection! ;) But perhaps someone on the forum knows variegata - it is a widespread species in Europe - and will be able to confirm this.

Edited by Tony Irwin on 19-04-2007 21:34

Posted by jorgemotalmeida on 19-04-2007 21:44

#10

thanks.

and what about this? http://home.hccnet.nl/mp.van.veen/conopidae/myopa.html#intro :D

Tergite 4 and 5 with silvergrey dusting, at the front border with two large, dark rectangular spots without dust, these spots well separated; face: at the mouth edge left and right a thin black stripe. 6-8 mm. -> Myopa variegata Meigen

Posted by Guenter on 19-04-2007 22:04

#11

I guess Jens-Hermann Stuke can tell you exactly what species it is, send the photos to him: jstuke at zfn.uni-bremen.de

Edited by Guenter on 19-04-2007 22:05

Posted by jorgemotalmeida on 19-04-2007 23:27

#12

thank you. I wrote to him since 1 hour 30 min ago. :) I hope we can have the confirmation... but if someone knows about this one, please let us know. :)

Posted by jorgemotalmeida on 20-04-2007 09:33

#13

Jens-Hermann Stuke replied to me:

"I guess it is Myopa buccata: The wings are darkened and I guess I can see the white crossvein. Additional the species has a haired face and black spots on the occiput."

So, almost probable to be Myopa buccata.

Posted by jorgemotalmeida on 20-04-2007 13:33

#14

do you confirm that the whitish crossvein to ID M. buccata is right?

Thank you!

Posted by jorgemotalmeida on 20-04-2007 23:00

#15

just to show a magnification above 3:1 of the head. Of course the dof in high magnification turns more smaller. ;)

But here it goes the head of Myopa buccata. :) You can see the terminal arista typical for conopid flies. :)

Posted by David Clements on 22-04-2007 17:57

#16

I am not so sure that this is Myopa buccata. The middle crossvein (R-M) is, as far as I can tell, blackish and it is this vein which is diagnostically whitish in buccata. The arrowed whitish crossvein appears to be M-Cu. Superficially the species looks very like variegata, but the wing-markings and occiptal 'beard' rule this out. It could be an aberrant buccata, but my feeling is that this is something altogether different.

Posted by Chris Lewis on 26-04-2007 00:56

#19

My pictures of myopa buccata, and those in the gallery, do not show the black-bordered white bands on the femora shown on the pictures above. I'm not sure if that helps though.

Posted by Mark van Veen on 02-05-2007 14:33

#20

It reminds me of Myopa picta. The cross-vein at the basis of cell R is black (the cell is rather short, so the cross vein is at about the middle of the wing). Cell R seems to have a black patch in it, typical for this species. Further, the colouration of the head matches.

Posted by jorgemotalmeida on 02-05-2007 15:28

#21

I will send this specimen to a specialist so we can get a final confirmation!
Because it seems to be a very special fly. :)
It would be great if it is confirmed M. picta for this one! Through this photo is it possible to tell if we are seeing a male/female? Which is the rule for conopid flies concerning the sex?
Thank you!

Posted by David Clements on 19-05-2007 18:32

#22

I have now seen this specimen, and confirm that it is a male Myopa picta Panzer. This appears to be a new record for Portugal, according to the 2002 checklist.

Posted by jorgemotalmeida on 19-05-2007 20:47

#23

that are great news, David! Thank you! :) Yes, it is a new species for Portugal. I confirmed it as well. I also have the catalog. :)