Identification of Hymenoptera (wasps, bees, ants)

Hello! Please tell me:
some kind of Andrena?
28.04.2016 district of Prigorodok village, Chernivtsi region.

Yes, what can you count, just look at your feet. Atophora, the gender is male, and to determine the type of Carkhorot really need to wait.

 
Here, interseno what a bee, three cells, but somehow very small and strange for Andrena and for galikts, the size is about 4 mm or a little more, with a metallic sheen.

And most likely andrena, but especially fluffy, can be easily distinguished by such signs? ) All in the south of Ukraine, taken the other day.

 
28.04.2016 district of Prigorodok village, Chernivtsi region.

I ask for help in determining. Tatarstan, Nizhnekamsk district, meadow near the village. Troitsky. April 23, 2016

...One more question. What's the arthropod in the yellow ant nest? The owners of the anthill did not touch it

Myrmecophilus Claviger testeceus

So this is staphylinid.
Thanks for the help.

It says here that the male Anthophora plumipes can be identified by the long hairs on its legs. Could it be him? http://www.bwars.com/bee/apidae/anthophora-plumipes

This is probably Alastor mocsaryi, and the queen Camponotus aethiops ?

The wasp is definitely not an Alastor , but rather a Stenodynerus of some kind

And why? In the sense of what signs to understand this, I always think that such wasps are alastores, but it turns out that they are not

The wasp is definitely not an Alastor , but rather a Stenodynerus of some kind

Here is another small ruderal, probably, eucera?

Oh, I didn't see the next page.

And Alastor mocsaryi usually has three bandages on its abdomen, not two.

I look at the wasps of Russia, and there it is like this

http://www.antvid.org/Vespa/Photo/Vespidae...%20mocsaryi.jpg

What's the difference, eucera or eucera? And in general, eukaryotes, eucalyptus and all that ))

But this is already a large steppe EC / vcera ?

And it's not little Andrena sleeping next to her, either?

Such wasps began to appear here, very cautious, yesterday I saw two - they flew away (
And today I found these wasps twice at once, once among the remains of a meal of a huge xysticus, and the second time - on hawthorn flowers, in very bad conditions for photos - on the dark side ) Well, acc. I had to take it from 70cm)
According to such photos, the determinant only stopped at the 19th point, similar to Odynerus.

Probably. But only, I remember, Pan personally caught the queen of this species and settled in the terrarium, I already forgot. what does it look like?