Identification of beetles (Coleoptera)

Small fast beetles

1 - Saratov region, Rovno district, Lugovskoe, 4-9. 05. 10
2-Saratov region, Engelsky district, Lesnoy, in sediments on the lake shore, 19.05.11

Tell me, please, what kind of carabus is this? A big one, about the size of shawnery.
Chelyabinsk region Snezhinsk 6.08.2011

glabratus-yes, only a nominative subspecies, lapponicus to the north...

can you tell me where the border of subspecies passes in this region?

30.07.2011 Kharkiv region, Russkaya Lozovaya village
In a container with water.

Please help me identify barbels. All barbels are exotic, caught in the 20s-30s. Where-unknown. Thank you in advance.

Please help me identify barbels. All barbels are exotic, caught in the 20s-30s. Where-unknown. Thank you in advance.

Please help me identify barbels. All barbels are exotic, caught in the 20s-30s. Where-unknown. Thank you in advance.

Please help me identify barbels. All barbels are exotic, caught in the 20s-30s. Where-unknown. Thank you in advance.

If you don't know where you were caught, then why leave?

You need to identify them, as these are museum exhibits that are still signed: exotic barbels.

Please help me identify barbels. All barbels are exotic, caught in the 20s-30s. Where-unknown. Thank you in advance.

Based on 3540, there is an assumption that this is Plectrodera scalator (USA)
3531 - something like Epepeotes cf. lateralis

  
3537 - самец Monochamus urussovi (Fischer von Waldheim, 1806)

It's not clear from the photo, but 3537 is not black, but brown-red. Who could it be?

Length-3.1 cm

You need to identify them, as these are museum exhibits that are still signed: exotic barbels.

Length-3.1 cm

Based on the size, Dmitrich is right: this is most likely M. urussovi.

And where is the museum? M. B. someone from forumchan lives nearby, will come, will look, will define...

Please help me identify barbels. All barbels are exotic, caught in the 20s-30s. Where-unknown. Thank you in advance.

In general, the definition of little-known species from photography is not correct.The beetle should be placed under binoculars, sometimes generic signs at the level of the bristles on the mustache!!!What kind of bristles you'll see here.The color on the photos (as a rule) is not correct,the size is not clear, and the exact point is not yet known.Throw out these beetles from the museum's collection,better catch ours with the right labels.Let the children visiting your exhibition see how it should be, and not the inscription "not a well-known beetle, figs know from where, and the uncle from the forum identified it to us"

Save the bug!

I can persuade the child to let him go as soon as we determine the species. Of course, you can invent it... but also interesting for yourself!


Thank you in advance to the experts!
Habitat - Far East

Please tell me if I identified the bug correctly:
Chlaenius (Chlaeniellus) nigricornis F. 1787. Novgorod region, 22.07.2011. The length is 12 mm.

No, it's not nigricornis. I won't take it upon myself to determine, it's a thankless task. I will refer you to the topic on the forum and the work of Mandl, it is in the public domain:
http://molbiol.ru/forums/index.php?act=ST&...50#entry1143394

In what places is this caught??