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genera Syntomus, Microlestes, Apristus

Community and ForumInsects imagesgenera Syntomus, Microlestes, Apristus

Aleksey Adamov, 16.05.2007 22:49

I haven't been able to photograph these beetles properly yet. But the thirst for high-quality photos has its place. If anyone has such photos or knows how to take pictures-do not hesitate...

For those who are not familiar with these groups of photos from the Internet:
picture: 28390.jpg
M. linearis (LeConte, 1851) - Canada
beetle length: 2 to 4 mm.
The same quality (or better), but our species... weep.gif
So far, only this.

This post was edited by Adamov - 17.05.2007 06: 59

Comments

Pages: 1 2

16.05.2007 23:02, Aleksey Adamov

Now, as for the drawings.
Here are drawings (diagrams )of the elytra of Microlestes and Syntomus from the " Fauna of the USSR. Ground beetles " made, as I understand it, by Kryzhanovsky:
picture: ______________S1.jpg

and here is a diagram of the arrangement of the bristles on the elytra of Microlestes, which I observe constantly on beetles:
picture: ______________S2.jpg
Now I'm scratching my head - why did he draw it like that?
Either the optics failed, or he did not try to accurately convey the position of the shield, focusing only on the top of the nadkr.

Discal pores in the area of the 3rd gap, do not always occur. Sometimes there is only one (which is closer to the top) or none at all.

Today I looked at the elytra of Syntomus sp., here's what happened (right):
picture: ______________S3.jpg
Syntomus this one is from the Amur region, Blagoveshchensk region, courtesy of Dinusik smile.gif

This post was edited by Adamov - 05/21/2007 12: 25
Likes: 5

19.05.2007 3:50, Dinusik

The same quality (or better), but our species... weep.gif
So far, only this.


Adamov, do not shed tears smile.gifHere I will deal with the damned lamp that died in my binocular, I will sit down for the totals Microlestes and Syntomus. smile.gif
Likes: 1

19.05.2007 20:03, omar

Adamov, mikrolestesov like recently filmed, very cool shot, some guy from Lithuania, on Coleopterists.

20.05.2007 8:32, Aleksey Adamov

Adamov, mikrolestesov like recently filmed, very cool shot, some guy from Lithuania, on Coleopterists.

Give me a link, otherwise I don't know much about these sites.

20.05.2007 8:42, Aleksey Adamov

I post photos of some individual Microlestes structures:
picture: 11.jpg
Aedeagus M. negrita (Rostov region).
Its inner sac (endophalus) contains two groups of large spines, which can not be seen on poorly illuminated aedeagus (as in this one).
picture: 22221.jpg
These are the same thorns from the opened aedeagus. The entire surface of the bag is covered with small "scales". uw. 240 times.

picture: 333.jpg
Wing plate of M. negrita on a dark background (the contours are better visible)

picture: 444.jpg
Wing plate of M. negrita on a light background (veins are better visible)

This post was edited by Adamov - 02/23/2010 02: 10
Likes: 5

22.05.2007 16:30, Aleksey Adamov

Syntomus obscuroguttatus Duft. (but I'm not sure - there is no decent literature).
Rostov-on-Don
picture: 2.1.JPG picture: 1.2.jpg

Aedeagus of this species:
picture: 4.JPG
Likes: 4

22.05.2007 16:47, omar

Adamov, since everything is so serious with you, here is a special one for you
http://www.zin.ru/Animalia/Coleoptera/rus/bukejs6.htm
Likes: 1

27.05.2007 12:46, Bad Den

Here are more Microlestets sp.
Kyrgyzstan, 10 km West cities of Jalal-Abad, Suzak Adyrs, h=810 m, 40 o 55 ' 57 "N, 72 o 53' 35 " E,
body length about 3 mm in light
user posted image

This post was edited by Bad Den - 07.04.2018 18: 09
Likes: 4

28.05.2007 14:18, Aleksey Adamov

Here are more Microlestets sp.
Kyrgyzstan, 10 km West cities of Jalal-Abad, Suzak Adyrs, h=810 m, 40 o 55 ' 57 "N, 72 o 53' 35 " E,
body length about 3 mm in light.
..


An enviable specimen...! This is either M. corticalis or M. badulini (then, new inf. about distribution), or maybe M. sp. n.
How many Microlestes (s) fly to the light, from the total experience?

28.05.2007 15:25, Bad Den


How many Microlestes (s) fly to the light, from the total experience?

I can send it to you if you need it.
In general-this is the first and only one

29.05.2007 14:20, Guest

hi

i found this nice thread today. i'm seriously looking for any lebiinae specimens, especially microlestes and syntomus.

i can offer other carabidae, also from other families, or literature..

kind regards
i. brunk



p.s.: please contact me in english, my russian language is very bad these days..

brunkin@web.de

29.05.2007 14:36, Aleksey Adamov

I can send it to you if you need it.
In general, this is the first and only one

Of course, you need to!!! Unless, of course, it's too much trouble...
I think it's a male, so if there's anything new, we'll know for sure.

30.05.2007 12:18, Aleksey Adamov

M. maurus (Sturm 1827), male.
Rostov region, Rostov-on-Don, Airport 3-13. 04. 2007 collections Rudaykova A. E. (UNC RAS)beer.gif.

picture: 3.JPG


picture: 1.JPGpicture: 2.JPG
Aedeagus of this species. The inner pouch is armed with several rows of spikes.

picture: 4.JPG
Anal sternitis of another species-M. fissuralis Reitter 1901 (male). Data collected is the same.
Due to the presence of a grainy platform (on this stubble there is) it can always be accurately and quickly determined... true, only for males... wink.gif
Likes: 2

31.05.2007 6:53, Aleksey Adamov

Aedeagus and its inner armament pouch (M. maurus):
picture: 1.jpg



image: __._56.1.JPG
Arming of the inner bag in transmitted light at uv. 56 times.

image: __._280._2.JPG
Thorns. Two types: simple and ax-shaped (about 15 pcs.). uv. 280 times.


image: __._280._5.JPG
"Scales" of the apecal part of the sac. uv. 280 times.

This post was edited by Adamov - 05/31/2007 08: 04
Likes: 2

06.06.2007 21:57, Aleksey Adamov

06.06.2007 22:13, Bad Den


There, on the second label, it is indicated that this is the "3rd Amerekan-Russian-Kyrgyz expedition to study biodiversity", its results have been published?

beer.gif

Not that I know of. If only the Americans wrote something.
And here is this article in the "Bulletin of UNN" - http://ns.unn.ru/index.php?file=vestniki_journals&anum=104

This post was edited by Bad Den - 06.06.2007 22: 19

06.06.2007 23:44, omar

Adamov, there is a controversial Microlestes from the Moscow region. Under the bark of a poplar tree, I got 3 copies. I can send you one. If you do, you will have a lot of respect. I don't have much experience in preparing ground beetles, so I probably can't handle such a small one... frown.gif

This post was edited by omar - 06.06.2007 23: 45

07.06.2007 7:36, Aleksey Adamov

Adamov, there is a controversial Microlestes from the Moscow region. Under the bark of a poplar tree, I got 3 copies. I can send you one. If you do, you will have a lot of respect. I don't have much experience in preparing ground beetles, so I probably can't handle such a small one... frown.gif

Of course! I will be happy to process your Microlestes!
My address: 112 Vyatskaya St., 123 sq. m., Rostov-on-Don, 344065 (to Alexey Viktorovich Adamov).

You can send them all, and I'll process them, mount them, and send them back.

Have you encountered any other material on Microlestes? I need any material from anywhere in Russia and neighboring territories.

This post was edited by Adamov - 13.06.2007 23: 21

07.06.2007 8:22, omar

Thank you, I will keep in mind who to give them to for determination. The group is not the simplest, and there are no good keys yet. We are waiting for a determinant of this kind from you. beer.gif

12.06.2007 22:27, Aleksey Adamov

Likes: 1

14.06.2007 18:41, Aleksey Adamov

...We are waiting for a determinant of this kind from you. beer.gif

By the way, it is not difficult to make a determinant for Microlestes of Russia (according to the 1995 checklist – 10 species). Only a few people will be able to use it, at least, you need to dissect a lot to fill your hand (especially on females). You will need this determinant for 100% reliable detection.
It is more difficult to make such a determinant that a 1st-year student can use in summer practice, i.e. a determinant based on external characteristics. This is one of my tasks (I already have something for some problematic types), in addition to this – revision, mutability, and so on.
Likes: 1

14.06.2007 21:38, Mylabris

But this is the right line of thought!!! Respect!
And there are two schools of taxonomists, one of which postulates: defining tables are created by those who do not need them at all, for those who will never be able to work with them; and the second: according to the tables, the veterinary student must also determine the material. I'm in favor of the second one, but it's a utopia...

14.06.2007 21:52, Aleksey Adamov

But this is the right line of thought!!! Respect!
And there are two schools of taxonomists, one of which postulates: defining tables are created by those who do not need them at all, for those who will never be able to work with them; and the second: according to the tables, the veterinary student must also determine the material. I'm in favor of the second one, but it's a utopia...

Maybe utopia, if we speak in an absolute sense. Of course, in any case, you need a skill. No one has ever learned to ride a bicycle after one turn with the pedals. smile.gif

15.06.2007 0:48, Dinusik

Maybe utopia, if we speak in an absolute sense. Of course, in any case, you need a skill. No one has ever learned to ride a bicycle after one turn with the pedals. smile.gif


Adamov, profoundly!!! Respect!!!

01.10.2007 9:36, Aleksey Adamov

Vas deferens ring of a female M. negrita from Rostov-on-Don (specimen from the collection of the Zoomuseum of the Department of Zoology of the SFU Biofactory Department).
picture: 1.1.JPG
Likes: 2

01.10.2007 10:04, omar

Adamov, recently caught Microlestes minutulus on dry land. In Fedorenko, the type is indicated for wet coastal biotopes. In this regard, he doubted himself and Komarov's table. Where does this species occur, where is it wet or where is it dry? Zherebtsov's also indicated for dry places.

01.10.2007 10:23, Aleksey Adamov

Adamov, recently caught Microlestes minutulus on dry land. In Fedorenko, the type is indicated for wet coastal biotopes. In this regard, he doubted himself and Komarov's table. Where does this species occur, where is it wet or where is it dry? Zherebtsov's is also indicated for dry places.

This species can occur in both dry and wet biotopes. It is distributed almost all over the territory of the former USSR. In general, its distribution is probably influenced not so much by abiotic as by biological factors( in my opinion), at least in our Rostov region.
Likes: 1

01.10.2007 10:25, omar

What do you mean by biological?

01.10.2007 10:38, Aleksey Adamov

What do you mean by biological?

For example (it may be a coincidence, of course): in our RO, this species is not found where there is M. negrita, and in general M. negrita prevails on the territory of the RO. But this still needs to be checked.
I can't be more specific yet.

01.10.2007 10:43, omar

In the Moscow region, all species of this genus are rare, so it is not necessary to talk about which species prevails where. One or two beetles caught - already happiness. smile.gif

01.10.2007 10:57, Aleksey Adamov

In the Moscow region, all species of this genus are rare, so it is not necessary to talk about which species prevails where. One or two beetles caught - already happiness. smile.gif

That's for sure... they are caught as they please. If with some carabus or pterostichus you can choose a suitable place and at least "catch" all its phenology, then with microlestos it is not so at all.

But you can catch decently in the MO, only it will not be a collection of "herpetobiont coleoptera", but already a hunt for the genus Microlestes. wall.gif smile.gif

This post was edited by Adamov - 10/01/2007 10: 59
Likes: 1

01.10.2007 11:19, omar

Not...My views are somewhat broadersmile.gif, but there are other beetles that you will not understand how and where. For example, the genus Lebia.

02.10.2007 0:15, Fornax13

Can you tell me what M. negrita is? And does this species have any characteristic features (other than the armament of the endophallus)?

02.10.2007 8:35, Anthicus

But who will tell me about the mystical Syntomus ai Barsevskis, 1993, described from Jurmala (Latvia) and according to all review catalogs passing as a valid species? WHO, finally, will dare to take up and synonymize this nonsense? smile.gif


I received a parcel with beetles! Thank you so much!!!
Skimmed through, M. badulini disappears. Now I will comprehensively measure and "sketch".
There, on the second label, it is indicated that this is the "3rd Amerekan-Russian-Kyrgyz expedition to study biodiversity", its results have been published?

02.10.2007 10:09, Aleksey Adamov

Can you tell me what M. negrita is? And does this species have any characteristic features (other than the armament of the endophallus)?

M. negrita is a broad-Mediterranean species (Komarov E. V.). It is one of the largest in Russia (approximately 2.8-3.5 mm in length). It differs well from other Russian species in terms of genitalia (in males, not only in terms of weapons, but also in the shape of the aedeagus). Males also differ well from other "black" species (M. minutulus, M. maurus, M. fissuralis) by a rather thick (but delicate) pubescence of the posterior thorax (mainly in the middle). Females differ very slightly from females of other "black" species. At least, I haven't found any good external signs yet (I'm looking for them at the moment).
Likes: 2

02.10.2007 10:11, Aleksey Adamov

But who will tell me about the mystical Syntomus ai Barsevskis, 1993, described from Jurmala (Latvia) and according to all review catalogs passing as a valid species? WHO, finally, will dare to take up and synonymize this nonsense? smile.gif

I can't say anything about this Syntomus. I haven't really started doing this kind of thing yet.

Do you happen to have this article with a description?

02.10.2007 12:53, Anthicus

Of course there is. If you can call it a description. Interested in the scan?

I can't say anything about this Syntomus. I haven't really started doing this kind of thing yet.

Do you happen to have this article with a description?

02.10.2007 13:19, Aleksey Adamov

Of course there is. If you can call it a description. Interested in the scan?

Of course!!! If there is anything else on these three genera , I will be very grateful.

02.10.2007 15:22, Anthicus

"something else" is what? Literature? By what region? Material?

Of course!!! If there is anything else on these three genera , I will be very grateful.

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