Identification of Hymenoptera (wasps, bees, ants)

I think this is a female Ectemnius ruficornis Zett, before that I had only caught a male.
The middle part of the platband is straight cut, the sides are quite strong teeth, bent to the sides. The 3rd chl is 3 times longer than the width. The hairs on the architrave are golden. On the mid-spine, the dotted line is thick, in the posterior half it passes in places into longitudinal wrinkles. The gap.the segment is longitudinally striated, the sides of the chest are also longitudinally striated. The tergites of the abdomen are weakly and gently dotted.

by the color of the abdomen, you can tell what kind of scolia, not hirta? I was caught in the south. Met once in the mass on cereals crawled, forest glade

and by what determinant is it better to banish it?? This color of the abdomen was in all individuals, so I caught only 3))))

Unfortunately, I don't have this volume, so I'll check it out at the Forest Institute

well, I don't know, everything is simple for me, it turns out on the lamp right outside....I really don't know why such a green shade is needed at all, it's very inconvenient, cloudy and the color is different, although it may protect you from something

help determine the ant
's location of the shooting MO Sergiev Posad. Bageli on the peony buds, apparently some kind of garden companion, but judging by the color definitely not black garden..

Please identify this builder. Hungary, July.

I understand this is Ectemnius fossorius L female. 17 mm. 3-chl. its length is 3 times greater than the width. The front corners of the pronotum are sharp, raised. On the anterior edge of the midspine, transverse hatching, then clearly in the longitudinal. Before that, I only had a male

I think it's a Prosopis sp bee or something close

Everything is correct if the "green" determinant is used. But the generic name Prosopis Fabricius, 1804 is a junior synonym for the generic name Hylaeus Fabricius, 1793.
This is a male, but it is difficult to determine his appearance...

Thanks! But why is it difficult? In the "green" only 3 species with such a scapus-annularis, euryscapus and rinki

Saratov region, Burkin Buerak, 17. VII. 2011
On umbrella flowers. Blestyanka - on the trunk of a dry tree.

Saratov region, Burkin Buerak, 17. VII. 2011
On umbrella flowers. Blestyanka - on the trunk of a dry tree.

Thank you very much!
As for the signs , I'm not an expert on hymenoptera, I just catch them, so I don't know what to look for or where to look. About spangles I heard that teeth on the abdomen are necessary, so I photographed them. What else do I need to clarify? Side view? In principle, it is not difficult for me, I can take pictures from any angle....

It also seems to be Tiphia femorata F...only the second copy is slightly less than 9 mm. It also seems to be a female. In the beginning, there was an assumption that this is T. ovidorsalis, I could not find a depression on the first segment of the foot, which is characteristic of Tiphia femorata F, well, this is according to the determinant. Her front shins are not black, but dark brown.