Identification of beetles (Coleoptera)

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20.06.2008 16:37, PG18

No, definitely not quadrimaculatum. For some reason, I think that someone from Ocydromus. Maybe saxatile? In principle, it is similar, and it also likes rocky shores.. But these are still mountains - you never know what else can be there... If there is a beetle, then you need to see if there are dots on the back of the frontal grooves.
There are several subgenera (Peryphus, Ocydromus, something similar.. ). Everyone is similar to each other - Bembidion is almost the most difficult group.

Wow, what a mess. According to Kozyrev et al., this subgenus has 11 species in the Middle Urals:
B. (Ocydromus) andrea polonicum J. Muller 1830
B. (O.) bruxellense Wesmael 1835
B. (O.) femoratum Sturm 1825
B. (O.) saxatile Gyllenhal 1827
B. (O.) tetracolum uralensis (Fassati 1944)
B. (O.) deletum Serville 1821
B. (O.) grapei Gyllenhal 1827
B. (O.) infuscatum Dejean 131
B. (O.) lunatum (Duftschmid 1812)
B. (O.)obscurellum (Motschulsky 1844)
B. (O.) petrosum Gebler 1833
With the first 5 b.m. distributed everywhere, the rest being local. Zhukov didn't collect, but I'll come back and find out if this is the case

20.06.2008 17:24, Fornax13

To PG18:
Similar to Bembidion (Eupetedromus) dentellum, but there may be other similar species.

Sometimes they do it differently with Ocydromus:

B. (Peryphus) andrea polonicum J. Muller 1830 (apparently B. (P.) cruciatum polonicum J. Muller, 1930)
B. (P.) bruxellense Wesmael 1835
B. (P.) femoratum Sturm 1825
B. (P.) obscurellum (Motschulsky 1844)
B. (P.) petrosum Gebler 1833
B. (P.) tetracolum uralensis (Fassati 1944)
- a cloudy group with just such a pattern, but without a group of dots near the western part of the frontal grooves.

B. (Ocydromus) saxtile Gyllenhal 1827
- Just with dots on the western part of the head

B. (Peryphanes) deletum Serville 1821
B. (P.) grapii Gyllenhal 1827
-Peryphanes (which I have seen-stephensii, deletum, fraxator, dalmatinum) are single-colored, without spots, although I can't vouch for grapii. Most likely, too.

B. (Asioperyphus) lunatum (Duftschmid 1812)
B. (A.) infuscatum Dejean 1831
-I can't imagine the 2nd. Lunatum has no shoulder spots.

So the number of options decreases

In general, with saxatile, I probably overreacted - the legs are too dark.

This post was edited by Fornax13-20.06.2008 18: 10

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21.06.2008 19:42, Fornax13

To PG18:
1 - Cool stuff!!

This is the genus Agatus, if I understand it correctly.
2-Also nice beetles

, but I don't know, maybe even Cymindis, but the sculpture is very strange.
3-1st - ? Cymbionotum, the second - Acupalpus, possibly elegans (Dejean, 1829).
4 - like Syntomus is so cool.
5-1st - Dicheirotrichus like (there should be a lot of them there), 2nd-Pogonus ? luridipennis (Germar, 1822).
6-like Acupalpus flaviceps Motschulsky, 1850
7 - 1-2nd-Microlestes, 2nd-Bembidion, similar to (Diplocampa) fumigatum (Duftschmid, 1812)
8-1st - ? Acupalpus flaviceps, I didn't understand something, 2nd-Bembidion-I won't lie, it's too bad for him...

9-first 2-like Anisodactylus poeciloides pseudaeneus Dejean, 1829 (2nd exactly, 1st is questionable, but similar

) 3rd - either Pangus or Microderes, although there is still something close there.

This post was edited by Fornax13-21.06.2008 20: 26

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