Identification of beetles (Coleoptera)

Help me determine it. Belarus Minsk region 06. 07. 2019.

Saratov, March.
Harmonia axyridis?

Why infection?

Good evening! Today I met the first zhuchara of this season, or rather, he flew to my hand to say hello
Tula, a gentrified area with lawns and buildings, but surrounded by meadows. In the hands was only the phone unfortunately, sorry for the quality. The size of the beetle is approximately 7 mm. Can I find out the name of the March guest?

First, Harmony is much larger, more prolific and aggressive than our native cow species, which leads to a sharp decline in their numbers. Secondly, with mass reproduction, this ladybug is harmful to agriculture. Third, they are toxic and cause inconvenience to people, being the cause of allergic diseases.

Ciscaucasia, today, very small(about 2 mm), about
on chistyak

Please help me identify this cow.
9.3.2020 Moscow region, Chekhov district

Hello! Please tell me, is this Lagria hirta? Chisinau neighborhood, August 4, 2019. Thank you in advance!
https://www.flickr.com/photos/radu_chibzii/...eposted-public/

The genus Lagria, but in Moldavia, according to Pal. Cat. 2 species-L. hirta and L. atripes

Good afternoon! Photo by phone. Neighborhood of Samara (forest-steppe), flew into the house. Summer 2019, month, unfortunately, I will not specify.
It looks like a ground beetle, but it doesn't look like anyone else in that it has sharp points on the cephalothorax and a crest on the back.
Experts! please help me determine if the photo allows you to
https://yadi.sk/i/XTAkywiM_pI2oQ

https://yadi.sk/i/JSjL1U9ZqLVv9g

Good afternoon! Photo by phone. Neighborhood of Samara (forest-steppe), flew into the house. Summer 2019, month, unfortunately, I will not specify.
It looks like a ground beetle, but it doesn't look like anyone else in that it has sharp points on the cephalothorax and a crest on the back.
Experts! please help me determine if the photo allows you to
https://yadi.sk/i/XTAkywiM_pI2oQ

https://yadi.sk/i/JSjL1U9ZqLVv9g

Barbel Dorcadion carinatum.
I couldn't get knocked up - they don't fly because they don't have wings

Thank you very much!

Adalia bipunctata?
Saratov, March 27.

hello! I ask for help in determining the floaters, I would like to understand the distinguishing features myself using examples, and not on schematic drawings.

all arrests in the Kaluga region

The first one is hard to see, a bigger picture would be better. And the color of the head.
The second is yes, D. dimidiatus.
The third is correct.

only on the border of the difference?

Actually, this is a noticeable difference, if you catch it. The apices of the processes along the outer edge are convex and rounded in D. dimidiatus and concave in D. marginalis. Well, the body shape of both species is different - D, marginalis is wider.
Yes, this is D. circumcinctus. In D. thianschanicus (which goes as D. circumflexus in the qualifiers), the processes are even longer, the eyes are without a yellow border, and the body is elliptical. In D. circumcinctus, the body is slightly expanded beyond the middle of the elytra.