Identification of Diptera (flies, mosquitoes, etc.)

Colleagues
Making lists of protected areas ' entomofauna. there is a certain number of photos that are not confirmed by the material... Help in any way you can
Yaroslavl region

Colleagues
Making lists of protected areas ' entomofauna. there is a certain number of photos that are not confirmed by the material... Help in any way you can
Yaroslavl region

Thank you very much,
You can also tell me,
the photos are old already from 2007 and 2008. area around Norilsk and Talnakh

On Didea does not pull-my sling on the second segment closer to the chest is curved, and in Didea-straight...

maybe not fasciata,but imho it is on the Didea and pulls-a characteristic morphologically edging of the abdomen.
the second one is not aware of your "northern" fauna, but I don't know how you can "guess" that Dasysyrphus hilaris and even more so spherophoria-no.

in general,the striped ones are one of the easiest groups, given that the banal paopadaetsya in the photo, but I handed the box over to the museum and already forget, but I don't confuse the eye.
" at night, all the flies are gray)"

maybe not fasciata -and then the question is-there is just a kind, variation?..., but imho it is on the DJ and pulls-a characteristic morphologically edging of the abdomen.
the second one is not aware of your "northern" fauna, but I don't know how you can "guess" that Dasysyrphus hilaris and even more so spherophoria-no.

in general,the striped ones are one of the easiest groups, given that the banal paopadaetsya in the photo, but I handed the box over to the museum and already forget, but I don't confuse the eye.
" at night, all the flies are gray)"

  
the second one is not aware of your "northern" fauna, but I don't know how you can "guess" that Dasysyrphus hilaris and even more so spherophoria-no. Probably from Syrphus.

Here I also drove the keys as far as possible from the photo - like Didea.

Was there a buzzing sound? Crimea, 16.06.2016

 
I'm sorry, Lyosha. At least you're trying.. wink.gif

2. something like Dasysyrphus hilaris (Zetterstedt 1843)

By the way, does the photo have a date? This view is in Flax.areas flying May-June

May 22

Well, you, damn it, give (s). Not only is this a topic for determining diptera, which are phylogenetically very far from golden-eyes, but you have a bug in the photo in general!

Please tell me who it is. July 31, Moscow region. Two or three millimeters in size. There were a lot of them on the umbrella plant.

I've seen it many times, but I've never wondered before. Apparently, these are males of Dasyhelea (Ceratopogonidae) that's what they look like...

Hello!
Tell me, please, what kind of fly is this, and why does it have such a strange, asymmetrical color of the abdomen?
The picture was taken at the end of July in the Bryansk region

Thanks! And the color of the abdomen should be like this? Half is gray with black, and half is black with gray?

Good evening to the experts! Please tell me the specific name of the fly. I've never seen one like this before. Body length-10 mm.

The Chloromyia formosa type of lion. Maybe even there is one.

Voronezh Region, 2014
What kind of weevil is this?

Tell me this Chrysotoxum ?