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Blestyanka kosmopolit

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PG18, 07.09.2008 21:30

Glischrochilus quadrisignatus (Four-spotted sap beetle) is a native of North America, naturalized in European Russia, the Urals (found in the collection), and Western and Central Europe.
Apparently, the bug is quite common... In spring, it is attracted by fermented birch sap, in autumn-by rotten yabokami... But its presence in Russia is completely denied by all available qualifiers.
I will be grateful for the experts ' comments.

Photo from Yaroslavl (Alexander Sosnin)

Pictures:
картинка: Glischrochilus_quadrisignatus_DSC0991_copy.jpg
Glischrochilus_quadrisignatus_DSC0991_copy.jpg — (79.5к)

Comments

08.09.2008 18:03, Mylabris

I caught a similar one in the Trans-Ili Alatau a couple of times, like Librodor, it came out on the green. There are a couple of copies in the collection, but you can't take a picture - I broke my camera frown.gif
Likes: 1

08.09.2008 19:06, amara

And you are sure that that cat. Did you find in the collection was quadrisignatus? Maybe it is (I do not know). But here is one of mine (Moscow region) Cat I counted (from the photo) Professor N. B. Nikitsky defined quadrisignatus as Glischrochilus (Librodor) grandis Tournier, also a recent visitor, but, if I remember correctly, from the Caucasus. In addition, the last (and not the first) in the Urals has already been noted http://szmn.sbras.ru/Coleop/Nitidul.htm
In my opinion it doesn't hurt to show it to a specialist:
http://www.zin.ru/ANIMALIA/Coleoptera/eng/ni_spec.htm

This post was edited by amara - 09.09.2008 09: 23
Likes: 2

09.09.2008 14:05, Dmitry Vlasov

This beast is not Glischrochilus quadrisignatus, but Glischrochilus (Librodor) grandis Tournier, Amara is right!!! The "American" spots are pale yellow, and the rear pair is beveled, not transverse. And it is not included in the qualifiers, so only because it appeared in Europe in the 70s of the twentieth century.
Likes: 3

09.09.2008 14:38, алекс 2611

This beast is not Glischrochilus quadrisignatus, but Glischrochilus (Librodor) grandis Tournier, Amara is right!!! The "American" spots are pale yellow, and the rear pair is beveled, not transverse. And it is not included in the qualifiers, so only because it appeared in Europe in the 70s of the twentieth century.


Finally figured out my Glischrochilus stuff. And then it didn't work out according to the determinants. Now I see why. The main mass is hortensis, but there are instances of grandis and quadrisignatus.

09.09.2008 15:08, PG18

To Amara and Elizar - my sincere gratitude! And where can I find information about grandis?

And you are sure that that cat. Did you find in the collection was quadrisignatus? Maybe it is (I do not know). But here is one of mine (Moscow region) Cat I counted (from the photo) Professor N. B. Nikitsky defined quadrisignatus as Glischrochilus (Librodor) grandis Tournier, also a recent visitor, but, if I remember correctly, from the Caucasus. In addition, the last (and not the first) in the Urals has already been noted http://szmn.sbras.ru/Coleop/Nitidul.htm
In my opinion it doesn't hurt to show it to a specialist:
http://www.zin.ru/ANIMALIA/Coleoptera/eng/ni_spec.htm

Of course I'm not sure... And I'm trying to figure it out, so I opened the topic. And the effect is there! Despite the fact that in the topic "Definition of beetles" this (grandis) the image was undecided.
Then I wonder who's here: http://www.zin.ru/Animalia/Coleoptera/eng/gliquadg.htm

Well, quadrisignatus is probably this one, from Ukraine, as Fornax13 correctly suggested

Pictures:
картинка: _Nitidulidae_Glischrochilus_quadrisignatus.jpg
_Nitidulidae_Glischrochilus_quadrisignatus.jpg — (20.82к)

Likes: 1

09.09.2008 16:07, amara

09.09.2008 16:54, PG18

Probably raised... But still, grandis or quadrisignatus, in your opinion, in the photo of Dmitry Gavryushin?

09.09.2008 17:08, amara

Probably raised... But still, grandis or quadrisignatus, in your opinion, in the photo of Dmitry Gavryushin?

I would say so, whether Kireychuk saw this photo or not.

09.09.2008 17:23, PG18

So, how's that, Boris?smile.gif

09.09.2008 17:33, amara

So, how's that, Boris?smile.gif


If Kireychuk (as an expert on the group) saw, then-quadrisignatus, if not-then I don't know (one of these species). Or wait for Elizar's opinion, he knows better.

This post was edited by amara - 09.09.2008 17: 34
Likes: 1

10.09.2008 7:52, Dmitry Vlasov

On the website of" Coleopterologists " the link to the page you gave - grandis!, M. B. Kireychuk did not see this photo... I myself with these "animals" with difficulty figured out, only thanks to the large series and the definition of N. B. Nikitsky.
Likes: 4

10.09.2008 14:47, amara

By the way, opred. tables of 5 types of Europe.
N. B. Nikitsky's book "Insect predators of bark beetles and their ecology" 1980, Nauka.
There only Librodor appears as a separate genus (and not a subgenus, as is customary now).
I think this book was posted here not so long ago.
And for the three American types, you can see here:
http://na.fs.fed.us/pubs/howtos/ht_nitidulid/nitidulid.pdf

This post was edited by amara - 09/10/2008 14: 52
Likes: 1

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