Identification of Hymenoptera (wasps, bees, ants)

Who is she?
Ukraine, Luhansk region, 28.06.2012.

both Halictus sp, the second looks like a male

both Halictus sp, the second looks like a male

In the" green " identifier, this is Halictus, now these bees most likely belong to the genus Lasioglossum

well, yes, this topic has already been raised here. But I think for such angles you can also call halictus, in general

I didn't really understand them yet, broken down into separate genera, so if Lasioglossum means so, and on what grounds now the former genus of Halictus diverges in venation or how? I don't even have time to look at the latest qualifiers.

External observations.
Eardrums are best identified if you put a copy in a matchbox, after picking a small hole in it so that you can look there with one eye; in the second place - glued to the dies, there are no signs on the belly anyway; then in the photos, where there is a tree for 90 percent, and somewhere there is an ichneumonid in the corner, just think of several thousand species; and, finally, the worst identified, especially in the laboratory, are the webs that are pricked and straightened in accordance with the characteristics of these groups

Please identify, if possible, two previously undefined bees. Rostov region
1. 06.10.12
2. 29.09.12

And another male, and the previous ones, as it seems to me, are working individuals

Ukraine, Rivne region, July 24.
I assume that in the picture of Bombus ruderarius
, is it possible to judge this based on the red hairs on the legs ?

Also, a female and a male hike

Hmm, where did Eumenine get the "working individuals"?

It turns out that these are females, females?

I only know tsimbeks berezovoi. What's this?"
Moscow region, Ramenskiy district, Khripan, July.

Why do you spend so much time on a completely unproductive spread of hymenoptera? For the sake of aesthetics? But it is not only useless to define them. and often it is harmful, because the main defining signs are not visible. It's not like they're butterflies.

5.jpg - Ectemnius ? sexcnctus - fm
4706 - Vespula rufa - fm (l); Crabro sp. - fm ®
4707 - Vespula rufa - fm
4726 - Cerceris sp. - fm
4728 - Philanthus coronatus - fm
4730 - Cerceris sp. - fm (l)
4732 - Polistes ? nimpha - fm
4733 - Polistes biglumis - fm
4735 - Polistes ? nimpha - m

Thanks!
I don't know why. Yes, for the sake of aesthetics.
Polistes are all from one nest, so biglumis?

Only these two are still undefined. Help.
Moscow region, Ramenskiy district, Khripan. Date of recording in the file name.