Identification of beetles (Coleoptera)

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30.11.2007 18:11, amara

Trofim, this is a staf from the genus Lathrimaeum. I also thought at first that this was not a staff, but something else

Which (Lathrimaeum Erichson, 1839) is now called Anthobium Samouelle (Leach?), 1819.
Interestingly, most Omaliinae (including Anthobium) have larvae overwintering, while Phyllodrepoidea has both larvae and beetles overwintering, and the latter remain active all winter.
So your observations of Trofim, no matter what kind of beetle it turns out to be, are already very interesting.
Necrocephalus, are you sure that the Trofim beetle is the same genus as yours, this genus seems to have species smaller than 3.5 mm (in green)? Maybe Trofim will try out the beetles again at home.

This post was edited by amara - 11/30/2007 18: 54

30.11.2007 20:47, Necrocephalus

Which (Lathrimaeum Erichson, 1839) is now called Anthobium Samouelle (Leach?), 1819.
Necrocephalus, are you sure that the Trofim beetle is the same genus as yours, this genus seems to have species smaller than 3.5 mm (in green)? Maybe Trofim will try out the beetles again at home.

100%, of course, not sure, but the similarity is very large. Here's another thing: staffs can lose very much in size after they dry out - in living individuals the abdomen is long, in dry ones it is significantly reduced in size, so it is sometimes difficult to tell from the collection material what size the beetle had during life. In green, there is no direct indication that it is the lifetime dimensions that are given, so it seems to me that you need to focus on the figures given there with some caution...
Those beetles from this genus that I have, the size in the "shrunken" state is about 4 mm.

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01.12.2007 21:48, barry

[quote=Dmitrich, 01.12.2007 20: 26] Help with the definition...
In my opinion, both are less than 10 mm
Crimea, 19.08.2007.
Well, these should be quite less than 10 mm. The first is similar to Oxytelus sp.?
The second one is definitely Stenus sp. But it is difficult to get to the "not holding in your hands" view. What did you shoot with? Notable photos!
[/quote]I don't remember the exact size, I remember that they are too small, maybe 5..7 mm. With the first one it was easier, I sat quietly at night on the wall near the lamp. And the second one was running around the stump in a panic, and out of a couple of dozen frames, two were more or less in focus. Camera-Canon PowerShot A640 with lenses and diffuser for built-in flash.

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07.12.2007 13:49, okoem

If you have a beetle on your hands, take a photo of the pronotum from above more carefully, and in general - let him pose from different angles. And under what conditions you found it, please unsubscribe.

Found in the vicinity of Feodosia, the biotope is a stony slope with a slight slope; the height from sea level is 20 meters. She was sitting high on a blade of grass.
Here are some more photos. Bug as always did not take, shot in a hurry, so there are no special angles.
I compared it with the pictures of T-shirts I already have - the antennae, the shape of the pronotum and the dotted line are very similar to the T-shirt from the same point, which I supposedly identified here in the spring as Meloe cicatricosus, this one is only small. Maybe she got the time of year mixed up? I have already met Tsinksia the draughtsman and Minima the Golubianka who were wrong about the season in October.

Pictures:
picture: 20071124_135441.jpg