Identification of beetles (Coleoptera)

What kind of beetles and what gender?
Please

1. Silpha obscura obscura Linnaeus 1758

1. Silpha obscura Linnaeus, 1758

And for me, a duck of the purest water Silpha tristis. The pinhole ribs never stand out so much, and the pronotum is wider.

Good day to all!!
Please help me with this friend. Like a grinder. and it seems to be from the genus Ernobius and there is an assumption that the species is E. explanatus Mnnh. Something in the area it is not very. But there is another one in the fauna of the USSR. A very similar species is E. fobos Golt. and the area is just the Krasnoyarsk Territory. But there is something strange to say about highlighting it in a separate view. What does it count as now?
It was caught in a bark beetle trap in the vicinity of Krasnoyasrka, a pine forest with an admixture of spruce.
Pronotum with flattened edges. the side edges are sharp. the body is red-brown, with a small red spot on the top of the elytra. The points on the elytra are tangled. they don't form rows. There is no bump on the pronotum. eyes without recesses, rather large.
The last three segments of the antennae are enlarged. The remaining segments are almost equal in length and width.

I completely agree with Anthrenus, this is Silpha tristis Illiger 1798.

Just by analogy and about the variability of these two species: in our region, you don't even need to think about the south - 99% of cupreus have red-brown legs, while versicolor never has such legs. However, there are exceptions, those with red legs are also found with black legs. And the border varies so much that it doesn't pull as a leading sign. I've reviewed it specifically now.
But the conversation is not about that, but about the fact that this photo is 50% by 50% (although I myself am also inclined to versicolor, but there seems to be no reason for that). You can safely call both this and that - no one will refute all one thing

Here is the only set of RELIABLE external differences:
P. cupreus-head and base of pronotum rather densely and clearly dotted; hind tibiae on the inner side with a row of 8-10 light, thin and long bristles; base of pronotum usually narrower than the base of elytra.
P. versicolor-head and base of pronotum at most with small, not dense and less clearly dotted; inner side of hind tibiae with 5-7, rarely 8 short, strong and dark setae; the base of the pronotum is usually the same width as the base of the elytra.

I totally agree. Unfortunately, only Western European keys include differences on the hind legs. In our determinants, this feature is usually not present...
And if I'm not mistaken, you quoted Trautner...

Tetropium sp., to be more precise, it is necessary that the pronotum is sharp.

Please help me deal with the beast.
The barbel was caught on 31.05.2009 here: Moscow region Balashikha district, Zheleznodorozhny district, mixed forest, in years.

Tetropium sp., to be more precise, it is necessary that the pronotum is sharp.

ok. I'll retake it now.
Reshot it (it doesn't get any better)

I would say that it is still Tetropium castaneum

This is definitely Ernobius. As for the explanatus , it doesn't fit the area. Well, everything is clearly written about fobos - this taxon was originally considered as an ssp. from explanatus. Logvinovsky, having found it in Siberia, considered it independent. You have more similar ones there, but the photo doesn't show the necessary signs. You have a copy - look at Logvinovsky (although, to be honest, many things are not determined at all by this Fauna).

Then akulich-sibiria:
Try using the keys in the article:
Toskina I.N. 2003. Some new palaearctic species of wood-borers from subfamily Ernobiinae (Coleoptera: Anobiidae) // Russian Entomol. J. Vol.11 (for 2002). No.4: 387-400
Лежит здесь: http://www.kmk.entomology.ru/rej.htm

Then akulich-sibiria:
Try using the keys in the article:
Toskina I.N. 2003. Some new palaearctic species of wood-borers from subfamily Ernobiinae (Coleoptera: Anobiidae) // Russian Entomol. J. Vol.11 (for 2002). No.4: 387-400
Лежит здесь: http://www.kmk.entomology.ru/rej.htm

Not Asemum sp.?

Well, then look for yourself If the pronotum is shiny, then castaneum. If the pronotum is opaque, then M. b. fuscum.

So Toskina does not have a key of this genus, only a supplement for the species described by her (very controversial).

Most likely T. fuscum (elytra without noticeable ribs). Is it possible in Moscow Oblast?

here is another "comrade" no more than a couple of mm.

why would fuscum have no ribs?7 Dai fuscum doesn't seem to be black.
fuscum also has reddish-brown whiskers and legs (although I don't think this is a clear sign).
kashtaneum

Please help me deal with the beast.
The barbel was caught on 31.05.2009 here: Moscow region Balashikha district, Zheleznodorozhny district, mixed forest, in years.

Tetropium castaneum (Linnaeus, 1758) - here for comparison http://www.cerambyx.uochb.cz/tetcas.jpg

Please share your thoughts about this weevil. Saratov. 31.05.09.

After specifying the size, maybe there will be considerations

5 mm

Then perhaps Strophosoma albolineatum Seidlitz, 1867. Try to run the green volume yourself at least!

Omar taps for strafosoma

Well, in general, it really looks like Strophosomus, and I saw the shape of the body and the constriction, the shape of the eyes is a little confusing, but in general I agree with the experts)
Strophosoma albolineatum Seidlitz, 1867 new species for the region, hooray comrades))))))

Congratulations! But in ocd. Volgograd and to the north (i.e. in your direction) banal in the appropriate stations. (My copies were confirmed by Boris Korotyaev, ZIN).