Thread subject: Diptera.info :: Winteractive flies

Posted by Juergen Peters on 03-12-2005 07:28
#1

Hello!

There were about a dozen or more species of Diptera active here in Ostwestfalen/Germany yesterday (0 ?C, sunny). Most of them known to me, but there remain some unidentified...

I know the photos are not the best, but perhaps can someone help me to determine at least the families. Thanks in advance!

The first one was only 8-10 mm long, tiny, shining black with brown wings:
insekteninfos.de/forum/0212/Diptera_8mm.jpg


Another one (15-20 mm) on a tree trunk seems to be a Calliphoridae:
insekteninfos.de/forum/0212/Diptera_20mm_1.jpg


Also this one on our house's wall:
insekteninfos.de/forum/0212/Diptera_20mm_2.jpg


Again on the wall a 10-15 mm long one. Not sure about the family:
insekteninfos.de/forum/0212/Diptera_15mm.jpg


This 10 mm Muscidae or Anthomyiidae (?) I found on a Sinapis arvensis field:
insekteninfos.de/forum/0212/Diptera_10mm.jpg


Another 10 mm-Anthomyiidae or Muscidae (Helina?). These were the most abundant flies yesterday sunbathing:
insekteninfos.de/forum/0212/Helina_sp.jpg


The last one should be clear: Scatophaga sp.:
insekteninfos.de/forum/0212/Scatophaga_sp.jpg

Posted by Nikita Vikhrev on 03-12-2005 12:16
#2

Hi Jurgen, could I try?
1. (upper) - Sphaeroceridae
2, 3 - Calliphora sp.
The last - Scathophaga sp.
Nikita

Posted by Nikita Vikhrev on 03-12-2005 12:28
#3

4. (dark fly after Calliphora) - I think it is also Dryomyza flaveola

Posted by Juergen Peters on 03-12-2005 12:34
#4

Hello, Nikita!

Thanks a lot! For the Calliphora sp. I first thought it was Polietes or another Muscid because I didn't see any metallic blue, but after having a look at the wing venation I think you are right with Calliphora.

Posted by Zeegers on 03-12-2005 12:58
#5

Hi Juergen,

Bless the usefulness of the bend in vein M !
I agree

Theo

Posted by Kahis on 03-12-2005 16:37
#6

4. Heleomyzidae are typica winter flies and I suspect this is the of them (although it could also be Dryomyzidae like Nikita proposed)

5. & 6. Anthomyiidae male + female, quite possibly of the same species. If pressed for a name I'd say Delia, but there are similar flies in many other genera.

Posted by Nikita Vikhrev on 03-12-2005 16:56
#7

4. My reasons:
a. antenae 3-d is too long for Heleomyzidae.
b. Most of all - given size 10-15 is about top level for Heleomyzidae, but just siutable for Dryomyza flaveola (also winter fly).

Posted by lynkos on 03-12-2005 18:09
#8

Hard not to get enthusiastic about these real survivors of the insect world. Here we're into a rainy spell that makes photographs pretty impossible, but I'm sure that when the sun comes back out, I'll be able to find something interesting to add to the winter's collection ;) Sarah

Posted by Paul Beuk on 03-12-2005 23:34
#9

Just a tip for the next time: to keep a better overview of what you have, spread the images over several threads.

Posted by Juergen Peters on 04-12-2005 04:44
#10

Hello to all,

and thanks for your hints!


Paul Beuk wrote:
Just a tip for the next time: to keep a better overview of what you have, spread the images over several threads.


You are right. With so many pics I'm always in doubt whether it is better for the overview to make several threads or "concentrate" all in just one. Looking at the replies in this case it would have been better to spread the images...

Posted by Juergen Peters on 04-12-2005 04:50
#11

Hello, Nikita!

Nikita Vikhrev wrote:
b. Most of all - given size 10-15 is about top level for Heleomyzidae, but just siutable for Dryomyza flaveola (also winter fly).


At first I also thought of a Heleomyzidae, but just as you wrote: that would have been the biggest Heleomyzidae I have seen. Not sure if it was really 15 mm, but definitely over 10 mm.

Posted by Nikita Vikhrev on 04-12-2005 18:37
#12

Hello Jurgen.
1. I'm sure I understand that Kahis's knowledge and my knowledge can not even be compared, so if Kahis told it is Heleomyzidae, than 99% it is.
2. But... If you will be so kind to attach better resolution image of this fly...
Nikita

Posted by Kahis on 04-12-2005 19:35
#13

Hi.

Hmm didn't consider the size. 10mm is close to the upper limit expected for Heleomyzidae - I guess the length you give is from head to wing tip, not body length. As for the antenna, I don't think it's possible to say what shape it has from the photo.

Posted by Juergen Peters on 05-12-2005 07:27
#14

Hello!

Nikita Vikhrev wrote:
2. But... If you will be so kind to attach better resolution image of this


I'm sorry, but I don't have a petter picture.

Posted by Andrzej on 03-02-2006 20:49
#15

in my opinion there is probably Scoliocentra villosa (Mg.), the biggest one (11-12mm) in Heleomyzini. The colour of mesonotum is typical for this species.

Andrzej:)

Posted by Juergen Peters on 03-02-2006 22:30
#16

Hello, Andrzej!

Andrzej wrote:
in my opinion there is probably Scoliocentra villosa (Mg.), the biggest one (11-12mm) in Heleomyzini. The colour of mesonotum is typical for this species.


Thank you very much, I will look if I can find some information on that species.

Posted by Andrzej on 06-02-2006 15:09
#17

Dear Juergen,

there is an excellent work on the villosa species:
Skidmore, P., 1966, The biology of Scoliocentra villosa (Mg.). (Diptera, Heleomyzidae), Ent. Monthly Mag., 102: 94-98.

Best wishes,
Andrzej :p

Posted by Juergen Peters on 06-02-2006 21:08
#18

Hello, Amdrzej!

Andrzej wrote:
there is an excellent work on the villosa species:
Skidmore, P., 1966, The biology of Scoliocentra villosa (Mg.). (Diptera, Heleomyzidae), Ent. Monthly Mag., 102: 94-98.


Thanks again!