Identification of Hymenoptera (wasps, bees, ants)

It's you who got the wrong place, in the photo, in my opinion, the babbling fly Ceriana conopsoides

as options something about argentata or barbilabris...however I reached them turning a blind eye to some signs in the theses :-))
I will also add that the upper lip is trapezoid, rather wide, narrowed to the top rounded.
I have a similar one, but the platypus and pronotum are shiny, the upper lip is narrow, almost triangular. The dotted line of the elytra is clearer.

Surroundings of Kirovo-Chepetsk, Kirov region. May 20.
And this is probably also Lasioglossum?

What size is it?
Something I have two of these views are more elegant. Yes, and they start flying in our area in early June, not May.

Something like this? http://www.youtube.com/watch?v=G472GY9FKn8

the one in the photo is just over 10 mm. There are a lot of questions about it, I'm more inclined to barbilabris,
but the other one is smaller, about 8 mm. now I don't have it at hand, it's pretty clear that I have it on argentata

Thanks to you, Andren has once again buried himself in his small things and is completely confused. In general, now collect and collect, and in the fall of all Andren watch a new one.
As always, if you didn't define it, then I can't do it either

Looks like. What kind of wasp are we talking about?
By the way, another source suggested that these are the larvae of the spangle moth or circle moth (Latin: Heliozelidae). I haven't seen what it is yet.

Kharkiv region, May
Deciduous forest. Sifting the litter.

Surroundings of Kirovo-Chepetsk, Kirov region. May 20.
And this is probably also Lasioglossum?

Good evening!
Please help me to "call" them.
Today, Moscow region.

Ponerinae. Most likely Ponera coarctata. It would be good to look at the stalk from the side for complete confidence.

  RoPro, also the other day saw several sitting and drilling a dead cedar. I spent a lot of time goofing around and came to the conclusion that this is a bracon (Braconidae) from the genus Glyptomorpha. Then I got stuck. So if anyone can clarify or straighten, I will be glad!

duc like pubescence of the hind legs is quite different?
especially the female. Although the dimensions are radiomed.they are similar to dasypods. If only there was one more small cell. Or maybe this is such a type of anomaly in Andren? Although the shape of the upper lip in Andren did not see this.

There are several types of dasipods.... And the pubescence of the hind legs is very similar. But this is definitely not hartipes.... And what a view... You can view it in green...

Why not sobsno Halictus ?

Check out the dazipod.... In the order of delirium)))))

I will be thinking about this bee. It looks similar to Andrena chrysopyga, but it has two radiomedial cells. Quite large about 13 mm. The architrave is slightly concave.

Although the dimensions are radiomed.they are similar to dasypods.

You can't see it in this photo either. Ponera coarctata should have a small rounded spike on the bottom of the stem.

It seems to be there. Should I take a picture from below or what's the best way?

this is clearly andrena, I was told that this occurs. How to catch it? Well, not anymore )) Yes, and I think that if this is an anomaly, then it is unlikely that there will be more. I think that the vein did not affect other vital signs ))))

Yes, I wrote that I have an instance with a vein reduction. And why is there such a negative attitude to fishing in the series? It would be interesting to meet the same bees, but with normal venation.