Identification of beetles (Coleoptera)

May be. In M. O. all three can be salted.

May be. In M. O. all three can be salted.

The process of the mid-thorax between the basins of the middle legs is narrow, rounded at the end (genus Cetonia).
The process of the mid-thorax is flattened and strongly expanded at the end (genus Potosia).
You, Irina, have this case sealed with a die (although I'm more inclined to my own version after all).

Thank you.
I'll peel it off.

And what about Aphodius?

Yes, peel it off (these two types differ greatly). # 2 you have a typical C. aurata.
According to Aphodius, I can't say anything (the oak itself is an oak in them)

In fact, the anterior process of the mid-thorax is not sealed (the die does not cover it), you just need to take a photo from a different angle - right from below, and then we will all make sure that this is cetonia.

I would have assigned No. 3 to C. aurata myself, and I would have looked at it from below in time, but I was confused by the fact that No. 3 was caught in July, and that it is significantly larger. C. aurata fly in May like crazy

I would have assigned No. 3 to C. aurata myself, and I would have looked at it from below in time, but I was confused by the fact that No. 3 was caught in July, and that it is significantly larger. C. aurata fly in May like crazy

In the Ministry of Defense from May to September, aurats fly, although I have the earliest 06.04.2000, but this is rather an exception, and the latest is 20.09.1995. and so they usually have the most years in June, then all umbrella bunches are hung.

It closes, I've already looked at it, but unpacking the die is not a problem. I use heavy-duty PVA with D3 water resistance. Such glue is peeled off in a whole piece, when it gets wet, it becomes like a rubber band.
It will be ready by the evening.

In fact, the anterior process of the mid-thorax is not sealed (the die does not cover it), you just need to take a photo from a different angle - right from below, and then we will all make sure that this is cetonia.

In April, I also caught both aurata and metallica (though at the end). So-this is not an exception (imago winters with them in my opinion).

By the way, in marmorata, the lateral edge of the pronotum is bordered only in the posterior two-thirds, and in aurata and metallica, the lateral edge of the psp is completely bordered. So if it is bordered by two-thirds, then this is marmorata and you can not peel it off.

Dear Cerambyx turned out to be right, and I, a fool, did not immediately realize that this process was sticking out ahead.

Here:

  Sugercete
Aphodius resembles Aphodius (Alocoderus) sordidus (Fabricius, 1775), but it is so shamanic)

For example, this sordidus should have a matte top with no dots, while mine should have a glossy top with dots. Here

A. rufus (=scybalarius) is. Not uncommon.

  
.. The large spur of the hind leg is longer than the 1st segment of the foot
..the grooves of the ndcr are connected posteriorly to each other
..the grooves of the ndcr are not more deeply indented posteriorly, the gaps are flat

And what is the sign with grooves? I don't find anything anywhere. What keys did you use? About the tops of the ndcr. - if you can, take a better photo or take a look for yourself. And where is the beetle collected? Biotope, I mean.

Who is the author of Jacobson's Aphod. rufus? Use something newer - at least green. There shouldn't be anything complicated.
Here's a comparison:
http://www.colpolon.biol.uni.wroc.pl/aphodius%20lugens.htm
http://www.colpolon.biol.uni.wroc.pl/aphodius%20rufus.htm
http://www.colpolon.biol.uni.wroc.pl/aphodius%20sordidus.htm

In metallica, larvae overwinter (beetles appear from mid-May - not earlier (and then in years with warm and early spring), and in cetonia, beetles and larvae overwinter. therefore, sometimes they (beetles) fly out in April. And in September, young people fly more often, although sometimes"old people" also survive.

2vasiliy-Lasiotrichius succinctus-exactly the same species

rather Axinopalpis gracilis

Dear Cerambyx turned out to be right, and I, a fool, did not immediately realize that this process was sticking out ahead.

Here:

Some kind of maggots, or cocoons in beans...