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Identification of beetles (Coleoptera)

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

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27.01.2011 19:47, akulich-sibiria

They differ well in the color of the sternites of the abdomen - this is exactly what was meant, just the color of the sternites, and you write that the abdomen, like the entire beetle, is black and blue. so somehow they saw it...and I have a median groove in some places visible and obvious lapponika...well, if it is explicit, then it is possible. I have about a dozen lapponikas from Kuzetsky Alatau. border of the Kemerovo region and the Republic of Tatarstan Khakassia near Ivanovo lakes..The color ranges from dark brown to dark bronze...

27.01.2011 19:53, akulich-sibiria

If there is a determinant, look there, it also says about the color of sternitov

27.01.2011 19:55, Mantispid

akulich-sibiria, I will not argue, may also turn out to be lapponica, when I pasted it, I did not notice anything red on the abdomen (although I did not specifically look at it), and the part that is visible is not red...then it is strange that in "green" (and also in Lopatin's opred. Belarus) this feature is not used, but the shape of the pronotum and the groove are used...As for cassida, pallidicollis is Rusian Far East; Mongolia; N China; Korea. In general, it looks like it...

27.01.2011 20:02, scarit

Cassida pallidicollis is present in our fauna. Most likely, this is her.

Likes: 1

27.01.2011 20:12, Mantispid

Cassida pallidicollis is present in our fauna. It's probably her.

She's her!

The forehead is yellow, some grooves are visible, and the punctuation of the elytra can be called confused...I never liked this feature)))

Likes: 1

27.01.2011 20:18, scarit

As for Ch. cuprea and Ch. lapponica, the main distinguishing feature is also indicated in Benkovsky's determinant (1999): in the first type of prsp.with a thin longitudinal groove in the middle, Lapponica does not have it.

27.01.2011 23:18, Mantispid

To summarize:
1. For cuprea - the shape of the pronotum, the presence of a groove, the color of the legs and antennae, the length of the body (10 mm)
2. For lapponica-color of the abdomen (?)
I still tend to kupreya....

28.01.2011 6:03, akulich-sibiria

well, probably because I do not have kuprea, so I tend to lapponika. Because in your photo, the furrow is hard to see, or rather I can't see it at all, it sets off the picture. And my lapponikas (I was guided by the color of sternites) have very weak signs of such a strip. And I don't really see such a bar on Zina's website. Therefore, I will tear up my own edeaguses and contact the proffi, then I will put the results

28.01.2011 6:40, Dmitry Vlasov

At Lopatin (leaf beetles of Belarus) also the main defining feature of the pronotum (the presence of a groove and shape). In what work I found a sign of abdominal sternite coloration, I don't remember, and I couldn't find it right away. I remember that when I found it, I was going to check it out on my copies, but I didn't get around to it. In my opinion, the beetle laid out by Mantispid, om-kupreya.

28.01.2011 6:50, Dmitry Vlasov

According to Jacobson (1931), kupreya has red lateral edges of sternites, while lapponica has an apical edge of the abdomen...

28.01.2011 10:22, akulich-sibiria

That's it....red side edges, that is, go in a strip along the entire edge of the abdomen, look at the yard, there this sign is also indicated!!!!And in lapponica, the edges of the last two sternites are brown or red. By the way, are the shins brown? And the sign of the color of the antennae is not entirely clear.
Mantispid also pointed out that the abdomen is completely black like the entire beetle, but that cuprea is not suitable for this trait...So I'm trying to figure out whether sternite coloration is important or not.

28.01.2011 10:30, Mantispid

akulich-sibiria, the lower legs are not brown, which is clearly visible in the photo. Antennae compare the color of 1-6 segments in the photo, it is slightly different, although this, of course, is not a reliable sign. As for the color of the abdomen - the abdomen can't be completely black, then it's something else altogether! So I just didn't see it (for example, due to the fact that the beetle was wet or because of inattention), and now I can't see it without peeling the beetle from the die (which, alas, I won't do yet)

28.01.2011 10:33, Mantispid

Now it's better to throw something else interesting...

28.01.2011 11:13, Mantispid

Pronotum close-up, the picture is of course a nightmare, but it seems that the groove is visible

And also I report that a slight lifting of the elytra showed the presence of yellow spots on the sternites. I think you can

And for a snack - "shchitovochka" - Thailand. Are there any connoisseurs of this snack? Or send it to a specialist right away?

Likes: 1

28.01.2011 11:19, Bad Den

And for a snack - "shchitovochka" - Thailand. Are there any connoisseurs of this snack? Or send it to a specialist right away?

"Shchitonoska" only

I think I caught one too...

You can try to view it on the site Cassidinae of the World or write it to the author.

Likes: 1

28.01.2011 11:34, Mantispid

The picture shows something like Laccoptera (Laccopteroidea) nepalensis Boheman, 1855

28.01.2011 12:17, akulich-sibiria

well, what can I oppose to your well-visible central groove!!????

I'm building!!! it seems that there are no options, we won-cuprea in my lapponics, of course, there is no such thing. I'm working on these two types here...I'll tear out the edeaguses, they won't go anywhere

here

Likes: 1

28.01.2011 17:17, AGG

Gentlemen,
I saw your thoughts on the topic of "kupray / laponik" and looked at my own (defined by Benkovsky

) result: works well size: the laponica is sometimes half as large; pronotum shape: the laponica has an almost straight edge from the base by 2/3, while the cupra has a smoothly rounded edge; color of the ventrites: the laponica is red (=light/brown) edge of the ANAL! kupray has at least 3 red (=light/brown) edges! and sometimes all of them!
the middle groove does not always work - I have copies of kupray with or without DV. unfortunately my camera can't handle this

ps my legs don't always work the same way

This post was edited by AGG - 31.01.2011 09: 14

Likes: 1

28.01.2011 17:57, akulich-sibiria

Gentlemen,
I saw your thoughts on the topics of Kupray/laponik and looked at my own (defined by Benkovsky ) result: works well size: the laponica is sometimes half as large; pronotum shape: the laponica has an almost straight edge from the base by 2/3, while the cupra has a smoothly rounded edge; color of the ventrites: the laponica is red (=light/brown) edge of the ANAL! kupray has at least 3 red (=light/brown) edges! and sometimes all of them!
the middle groove does not always work - I have copies of kupray with or without DV. unfortunately my camera can't handle this

Well, I was talking about the color of sternites. I looked at my lapponikas, there were only two males, and then the color patterns are characteristic of this species...his aedeagus, but unfortunately the black specimens are all females ((

31.01.2011 22:56, adetkov

Hello! Help me deal with the bronzes:

1. Protaetia (Potosia)? metallica (judging by the location of the subspecies volhyniensis)

Rostov region, Taganrog 14.06.2010
user posted image

2. Protaetia (Potosia)? cuprea metallica (presumably ab. volhyniensis)

Rostov region, Taganrog 06.09.2010
user posted image

3. Protaetia ?(Eupotosia) affinis affinis

Krasnodar region, Divnomorskoe 07.07.2010
The bottom is pecked and uninformative

Thank you in advance

01.02.2011 11:35, Mantispid

Small but beautiful shield carrier-Thailand.
Leaf beetles-Kemerovo region

01.02.2011 13:28, Alexander Zarodov

Can you help me with the floater? Moscow, arrived at the light, early July.

Did you get Rhantus suturalis or notatus, or is it the same thing?

Pictures:
picture: bug220101.jpg

bug220101.jpg — (190.92к)

01.02.2011 13:46, botanque

Can you help me with the floater? Moscow, arrived at the light, early July.

Did you get Rhantus suturalis or notatus, or is it the same thing?

It's hard to tell from this photo. It would be nice to look at the bottom and pronotum without glare.
R. notatus is now frontalis.

Likes: 1

01.02.2011 13:59, botanque

But I can say that here http://nature.doublea.ru/index.php?p=110673832305 - Cercyon (s.str.) marinus Thomson, 1853

Likes: 1

01.02.2011 14:49, Alexander Zarodov

It's hard to tell from this photo. It would be nice to look at the bottom and pronotum without glare.
R. notatus is now frontalis.

From below it will not work, but the pronotum is like this

Pictures:
picture: bug220101x.jpg

bug220101x.jpg — (104.45к)

01.02.2011 15:08, botanque

I have only seen such a" smiley face " on the pronotum of Rh. frontalis. But, of course, it is impossible to say absolutely.

Likes: 1

01.02.2011 16:36, lescha

help with leaf beetle
caught-Donetsk 19.06.09

Pictures:
image: _______. jpg

_______.jpg — (104.77к)

01.02.2011 16:41, Bad Den

help with leaf beetle
caught-Donetsk 19.06.09

Zygogramma suturalis

01.02.2011 16:48, lescha

do you have a Russian name?

01.02.2011 16:51, Bad Den

There are

01.02.2011 17:04, lescha

It's clear. I just have the old determinant
thank you

01.02.2011 17:49, Alexander Zarodov

With the bark beetle I find it difficult even to sort

Moscow, early June, on light, 3.5-4 mm

Maybe some Dryocoetes?

This post was edited by Double A - 01.02.2011 17: 59

Pictures:
picture: bug200201.jpg

bug200201.jpg — (111.8к)

01.02.2011 18:55, косинус

It looks very similar to XYLEBORUS DISPAR (UNPAIRED BARK BEETLE)

01.02.2011 19:35, akulich-sibiria

and for me it is from the genus Scolytus

01.02.2011 19:41, akulich-sibiria

Small but beautiful shield carrier-Thailand.
Leaf beetles - Kemerovo region.

With Thailand, I pass

, Although at the end of February I'm going to warm my heels there.
As for Chrysolina, I think it's polita L.
as for Cryptocephalus, I'm pretty sure it's quadriguttatus Rich.

Likes: 1

01.02.2011 19:45, Mantispid

With Thailand, I pass, Although at the end of February I'm going to warm my heels there.
As for Chrysolina, I think it's polita L.
As for Cryptocephalus, I'm pretty sure it's quadriguttatus Rich.

Chrysoline, it seems to me, is not watered, the dotted line is completely different... I think something more complicated

This post was edited by Mantispid - 01.02.2011 19: 55

01.02.2011 19:51, akulich-sibiria

With the bark beetle I find it difficult even to sort
Moscow, early June, on light, 3.5-4 mm

Maybe some Dryocoetes?

no, it's definitely Scolytus, like a variant of S. ratzeburgi Jans. if there is a beetle, look, there are button-shaped elevations on the sternites, and it would be desirable to take a photo from below...I think the picture will be more clear.
Here it is important to know what else is caught or what station... this scolitus lives under the bark of a birch tree, so it is birch

Likes: 1

01.02.2011 19:59, akulich-sibiria

Chrysoline, it seems to me, is not watered, the dotted line is completely different... I think something more complicated

what exactly is different from polita?? The picture is a little dark. As I can see, the wings are brown-red, the head and entire body are dark metallic. Is the dotted line confused or not????

I just didn't have anything like it back then...I think experts will tell you

legs with a bare line on the bottom or not??

01.02.2011 20:18, Mantispid

what exactly is different from polita?? The picture is a little dark. As I can see, the wings are brown-red, the head and entire body are dark metallic. Is the dotted line confused or not???? I just didn't have anything like it back then...I think experts will tell you
legs with a bare line on the bottom or not??

This is not a picture like this, but he himself is so dark)))
But I think there are really no other options besides Chrysolina polita. This copy. it differs from the previous one in the brilliant black color of the pronotum (rather than bronze-green) and a completely different dotted line on the pronotum. But it probably doesn't matter...

This post was edited by Mantispid-01.02.2011 20: 19

01.02.2011 20:38, akulich-sibiria

for watering, it is indicated that the body is dark or metallic, that is, there is a matte color option. what about the punctured pronotum?? is it rougher or something? the side rollers seem to be similar.

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