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Identification of beetles (Coleoptera)

Community and Forum → Insects identification → Identification of beetles (Coleoptera)

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17.03.2010 19:22, Sugercete

a 1 case not pterostichus angustatus


Nos. 1 and 2 have two pits on the elytra. Apparently, you are right that this is melanarius.
I'll go check the keys.
What about Nos. 3 and 4?

This post was edited by Sugercete - 03/17/2010 19: 26

17.03.2010 19:34, scarit

Irina, No. 4-Amara. And Pter. melanarius and Pter.niger differ well in males. Pt. niger males have a clearly visible keel on the last sternum of the abdomen (even with the naked eye).
Likes: 1

17.03.2010 19:36, scarit

# 3-it also seems to be Amara.
Likes: 1

17.03.2010 19:45, Sugercete

No. 2 was determined as melan (according to YY), tk the rear corners of the prsp in the form of small protruding denticles + 2 pores. In GG, however, it is marked as "South".

No. 1 prsp is completely different, but there is no keel, and there are no pores... 2 pores on the ndkr, do Niger have them?

This post was edited by Sugercete - 03/17/2010 20: 05

17.03.2010 19:58, scarit

And #1 - no and not niger! It seems to have a pronotum with rounded corners?
Likes: 1

17.03.2010 20:01, scarit

Maybe it's Pter. melas?
Likes: 1

17.03.2010 20:22, Sugercete

By 3 and 4, it turns out that

№ 3 Amara communis Pz.(YY) tc 3 the first segments of the whiskers are yellow, the pore of the prsp is distant from the edge
No. 4 Amara aenea Dg. (YY) tc 3 the first segments of the mustache are red, it is time for PRSP at the very edge

Can this be the case?

N 1 for YY does not "break through" what is it?
In this beetle, I noticed that its prsp is distinguished by the fact that at the edges of the base of the prsp there is a strongly protruding keel, the back part of which ends in the very corner of the PRSP with a large bristle
like this:
user posted image

Here, I tried to zoom in as much as I could:

user posted image

Full size:

http://i030.radikal.ru/1003/55/cdbd8c599b21.jpg

This post was edited by Sugercete - 03/17/2010 23: 58

18.03.2010 1:04, omar

Does it have a metal pronotum or is it buggy for me?

18.03.2010 1:24, Sugercete

Does it have a metal pronotum or is it buggy for me?


No, not metal. This is a reflection from the scanner.
Good evening

I would describe the color as follows. Semi-matt black, glossy prsp, but without metal

This post was edited by Sugercete - 03/18/2010 01: 28

18.03.2010 2:03, omar

then take a closer look at aethiops
Likes: 1

18.03.2010 2:23, Sugercete

then take a closer look at aethiops


aethiops does not pass, because my beetle has the 5th (claw)segment without bristles, male sternite without cavities, 2 pores on the ndcr, not 3

18.03.2010 2:33, omar

2-think Pterostichus melanarius.
Likes: 1

18.03.2010 2:41, Sugercete

2-I think that Pterostichus melanarius.


Is this the same as melan by YY, or are they different species?

18.03.2010 2:44, omar

Pterostichus quadrifoveolatus
Pterostichus oblongopunctatus
2 последних
Likes: 1

18.03.2010 2:45, omar

amara correctly vrode
Likes: 1

18.03.2010 2:45, omar

Then I'll think about the first one again.

18.03.2010 2:47, Sugercete

And my post is 9672?

18.03.2010 2:49, omar

there is melas, but we shouldn't have it. seem. but this is not the same as melanarius

This post was edited by omar - 03/18/2010 02: 51

18.03.2010 2:55, Sugercete

One more time.
Nos. 1 and 2 have both the 5th segment of the legs completely bare without bristles, both have 2 pores in the 3rd furrow, both have the first sternite smooth. The difference is in the rear outer edge of the prsp: # 2 has small corners protruding, # 1 does not have them, and the rear corner of the prsp is rounded.

No. 1-May 8 Mozhaisky district of the Moscow
Region No. 2 end of May Volokolamsk district of the Moscow Region

I went to bed, I don't have the strength anymore.
The eye is already tired behind the magnifying glass smile.gif
Thank you, Roman, see you tomorrow smile.gif

This post was edited by Sugercete - 03/18/2010 03: 01

18.03.2010 18:43, omar

What size is it?

18.03.2010 19:00, Sugercete

What size is it?


No. 1-15 mm
No. 2 - 15 mm

18.03.2010 19:05, scarit

And in No. 1 episterna, the posterior thorax is longer than its width or short?

18.03.2010 19:07, Sugercete

And in No. 1 episterna, the posterior thorax is longer than its width or short?


I haven't steamed them from the die yet. I'll do it late tonight, then I'll come back to this question. I'll also scan it from below.

18.03.2010 19:16, omar

it is better not to use rectangular dies for mounting pterostiches and harpals. glue on triangles. NCDs are almost always needed for identification in these genera.

18.03.2010 19:19, Sugercete

it is better not to use rectangular dies for mounting pterostiches and harpals. glue on triangles. NCDs are almost always needed for identification in these genera.


Yes, I agree, I now transfer all my beetles from large cubes to small side ones, and small beetles to side pentagons and triangles. In the process of this procedure, I scan and upload it here.
smile.gif

18.03.2010 21:28, Sugercete

And in No. 1 episterna, the posterior thorax is longer than its width or short?


No. 1 From the Bottom
user posted image

It's also full size:
http://s003.radikal.ru/i204/1003/43/b91da2dd6f67.jpg

No. 2 From the Bottom
user posted image

It's also full size:
http://s51.radikal.ru/i134/1003/32/6cc248f688bd.jpg

This post was edited by Sugercete - 03/18/2010 21: 44

18.03.2010 22:02, omar

#2 in principle, is no longer interesting

18.03.2010 22:09, Sugercete

#2, in principle, is no longer interesting


What do you mean, uninteresting weep.gif?
Isn't that a bug?

18.03.2010 22:30, omar

its definition is already quite obvious

18.03.2010 22:52, Sugercete

its definition is already quite obvious


Well do not tomite the same confused.gif

18.03.2010 23:39, omar

I believe that both of them are still melanarius in another way does not work
Likes: 1

18.03.2010 23:47, Sugercete

I believe that both of them are still melanarius in a different way does not work out


n...yes, I'm not sure, such different prsp, but still thank you very much, and I'll set the sp for myself in the meantime. I think it will be possible to catch the No. 1 series at the beginning of May, and by winter I will buy a new scanner, then we will return to them, if, of course, there are no other opinions now.

Thank You

18.03.2010 23:51, omar

there will definitely be no other opinions on such photos
Likes: 1

18.03.2010 23:59, omar

Yes, more. look again at the last 2 amar. I didn't look at the size, so I wrote them down in auliki.

19.03.2010 0:11, Sugercete

Yes, more. look again at the last 2 amar. I didn't look at the size, so I wrote them down in auliki.


By 3 and 4, it turns out that

No. 3 (7 mm) Amara communis Pz.(YY) tc 3 the first segments of the whiskers are yellow, the pore of the prsp is distant from the edge
No. 4 (9 mm) Amara aenea Dg. (YY) tc 3 the first segments of the mustache are red, it is time for PRSP on the very edge

19.03.2010 0:14, omar

yes not tech

19.03.2010 0:27, Sugercete

yes not those


Sorry
8 mm
I have the keys agreed that Aulika

19.03.2010 0:36, omar

8 mm
small
Likes: 1

19.03.2010 0:37, omar

download green, it's easy. at least green.
Likes: 1

19.03.2010 1:34, Sugercete

8 mm
small

Aulica I will review more snizu

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