Water beetles

If you don't mind the dots.

Okay, I'll try to clarify.

They forgot about Saratovskaya, we have it!

Mantispid " They forgot about the Saratov region, we have it!"
Great, thanks! Do you have any data?

AGG and botanque thank you... The information is good!
AGG Whether it is possible to debug a full scan of the nameplate or explain it. I am not clear about the values (names) of the columns in which the regions are entered.

You are a sadist , I eat shish kebab with vodka in honor of the holiday, and you make me take the camera with these hands. find by title, in the" flora/fauna library " it seems to have been http://herba.msu.ru/shipunov/school/sch-ru.htm.
there is a big explanatory note and now I can't take the time to re-shoot everything, but since you have already taken up this issue "to make a clear picture of the world range and status of the species", then such literature should be a priori. if you don't find the full scan, please contact us, but not today



This post was edited by AGG-02.08.2012 20: 26

Vologda CC - 4 (DD) according to the IUCN (Data Feficient) - type of undefined status...
We have problems in the north (NAO, VO) with the confirmation of finds and status, because the reservoirs are large (large) how to catch it is not clear... Captures are random and isolated...

This post was edited by Elizar-02.08.2012 20: 41

Forumchane left a mattress with water beetles.
Maybe someone needs it, I don't want the material to disappear.
Altay2011 collection, free of charge!!!
write to your personal account fayst79@yandex.ru

  
We have problems in the north (NAO, VO) with the confirmation of finds and status, because the reservoirs are large (large) how to catch it is not clear... Captures are random and isolated...

although they write about xxx=large reservoirs, I caught it in small small, but permanent lakes, maybe you should look in the floodplain of these large ones that are smaller? there it is more convenient to catch

Mantispid " They forgot about the Saratov region, we have it!"
Great, thanks! Do you have any data?

we have copies. in the SSAU museum, probably collected at the beginning of the last century, naturally without the exact label, only "Saratov Province". I think I've seen a photo of this specimen somewhere, but I can't find it. So we have) or was)

AGG : ..."You are a sadist , I eat shish kebab with vodka in honor of the holiday"......
Opaaa!!! This is probably the holiday I thought of..and which everyone (surrounding) is afraid of? Hooray! or something.. Shish kebab and vodka hm..why did I read this from hunger strike?
You've just captured some important information. Thank you!

we have copies. in the SSAU museum, probably collected at the beginning of the last century, naturally without the exact label, only "Saratov Province". I think I've seen a photo of this specimen somewhere, but I can't find it. So we have) or was)

This may just as well be the Volgograd region.

we have copies. in the SSAU museum, probably collected at the beginning of the last century, naturally without the exact label, only "Saratov Province". I think I've seen a photo of this specimen somewhere, but I can't find it. So we have) or was)

Thank you very much! Got it.

Vologda CC - 4 (DD) according to the IUCN (Data Feficient) - type of undefined status...
We have problems in the north (NAO, VO) with the confirmation of finds and status, because the reservoirs are large (large) how to catch it is not clear... Captures are random and isolated...

I agree with AGG fishing is necessary in backwaters in shallow waters, often along the coastline often overgrown with sedges. In particular, sedges of the genus Carex: C. acuta, C. rostrata, etc. Pre-study the benthos...If you find caddis flies, including the family Limnephilidae, then success is very likely. It is caught all year round. Even in winter. In the spring, of course, it is better to look for larvae.

I agree with AGG fishing is necessary in backwaters in shallow waters, often along the coastline often overgrown with sedges. In particular, sedges of the genus Carex: C. acuta, C. rostrata, etc. Pre-study the benthos...If you find caddis flies, including the family Limnephilidae, then success is very likely. It is caught all year round. Even in winter. In the spring, of course, it is better to look for larvae.

Where can you get so many people to help catch the shallow waters of the Rybinsk reservoir (S=4.5 000 sq km)???

Where can you get so many people to help catch the shallow waters of the Rybinsk reservoir (S=4.5 000 sq km)???

You can call forumchan. I think we'll dial 20 people without any problems

Where can you get so many people to help catch the shallow waters of the Rybinsk reservoir (S=4.5 000 sq km)???

Well, together it is certainly more fun. But when choosing the right biotope..I think one person is enough. ([although such areas are ) Set a series of traps and wait. Mowing is usually not effective. Mowing can reveal larvae. Also in the spring, you can try to collect eggs. well, in the laboratory, wait for someone to come out.... The fact is that I have not yet learned to distinguish between the clutches of D. latissimus, D. dimidiatus, and D. circumcinctus. All these beetles can lay eggs in the same plants. Although there are probably differences in the nature of the clutches.. I haven't caught it yet.

This post was edited by VaV-03.08.2012 11: 14

And what kind of trap design can be used on latissimum?

Does it fly to the light?

And what kind of trap design can be used on latissimum?

http://molbiol.ru/forums/index.php?showtopic=377909&st=100 post 130

2 Denis: I came across ditiskus in the spring and autumn, but latissimus did not arrive.

PS from personal experience-large swimmers and water lovers often get into delirium with a small cell when fishing

This post was edited by AGG-04.08.2012 10: 05

Does anyone have any experience of catching Latissimus with such devices? Or is this pure theorizing?

By the way, the topic is collecting water beetles already there, you can go there...

By the way, the topic is collecting water beetles already there, you can go there...

good point! How do I do this now?

just copy your message to this topic http://molbiol.ru/forums/index.php?showtopic=350711&st=100 and it will "turn around", and delete your newly created one-you have the right to do so as the creator. if it doesn't work, then an email to the moderator asking us to delete the topic is a pictogram with an exclamation mark above each message, but unfortunately, he doesn't often pay us his attention lately

just copy your message to this topic http://molbiol.ru/forums/index.php?showtopic=350711&st=100 and it will "turn around", and delete your newly created one-you have the right to do so as the creator. if it doesn't work, then an email to the moderator asking us to delete the topic is a pictogram with an exclamation mark above each message, but unfortunately, he doesn't pay us much attention lately

Thank you guys! it seems to have worked. Wow!

Good time!
I collect information on the range boundaries of D. latissimus in Russia. I am also interested in its environmental status in the constituent entities of the Russian Federation. I collect information to provide a clear picture of the global range and status of the species.
We are particularly interested in the borders of the eastern and southern directions. Thanks!

One of the successes of the past season.
Dytiscus latissimus Linnaeus, 1758.
Tambov region, Sosnovsky district, Stezhki village, pond; 25.09.2009.
[attachmentid()=73615]

In addition, from the same point there is an instance caught in the fall of 2011.

Promised Elmidae from the Pechegda River, Tutaevsky district, Yaroslavl region. From left to right: Elmis sp., Limnius sp., Oulimnius sp.
Please do not kick for the quality of the photo-tsifromylnitsa via MBS-9

Pictures:

Elmidae.jpg — (152.14 k)

In addition, from the same location, there is a specimen caught in the fall of 2011.

Yeah! Thanks!

Potamophilus acuminatus (Fabricius 1792)
Tambov region, Rzhaksinsky district, Maryevka village, Vorona River, July 22, 2001

As far as I understand, there is no sufficient information on the distribution of this species, as well as the family in general, on the territory of at least the European part of the Russian Federation.
my only Elmidae is that we do not have suitable watercourses or not there and not so, although we are aware of everything...
(caught completely by accident... every year we built a bridge for fishing and the current often nailed grass and branches to the poles, so on one of these branches this bug was found)

Helophorus (Empleurus) nubilus Fabricius, 1776
Tambov region, Tambov district, S-Z s. Orlovka, the swampy bottom of a steppe gully, in a glass=a soil trap. I've never seen them anywhere else.

Tambov region-forest steppe! Tambov region - sad shit! if you don't know the places, then it's a solid argocenosis and anthopogen. the forest was sawed, drank and sold (more precisely, the remains were leased. 49 years in the place where I caught gnorimusov-bait for wild boars...), and the steppe is still nine hundred shaggy plowed, if you collect all the areas on the slopes of ravines, where the tractor can not pass, then you will get 0.000 (=zero whole horseradish tenths) ha from the region. and here is the most interesting thing-this beetle was caught in that unique place where dybki, bombardiers, dorkashi-crusaders run and 4-5 types of feather grass on top, and at the bottom of clathratus and dripta dentata-for almost all of the above, either the only point in the area, or 2-3. and this is not unexplored, but actually unique place.




This post was edited by AGG-08/19/2012 12: 48

As far as I understand, there is no sufficient information on the distribution of this species, as well as the family in general, on the territory of at least the European part of the Russian Federation.

Data is scarce, but the coverage is broad: Karelia, Voronezh, Volgograd, Rostov, Chelyabinsk regions, Udmurt Republic, and Samara Region from two locations.

the size is 4 mm, but the beetle is very wide in contrast to our usual hyloforusov

As I can see, in your photo, the prischitkovaya groove on the elytra seems to be visible. Then it's almost certainly nubilus. Other ribbed-bristly species with such a groove are noticeably larger. And the ones I have differ in body shape and pattern.

Hydrochus kirgisicus Motschulsky, 1860
20 km NE Tambov, Zarechye settlement, na svet, 16. VIII


Hydrochus crenatus (Fabricius, 1792) = carinatus Germar, 1824
Tambov region, Tambov district, near the village of Troitskaya Dubrava, a puddle on the bank of the Tsna River, 30. VIII


Hydrochus elongatus (Schaller, 1783) det. S. Litovkin (botanque)
5 km E Tambov, Protasovsky cordon, mixed forest, pond, 26. IV


This post was edited by AGG-19.08.2012 17: 06

Another "tough guy" from the same trip. All label data is the same as the previous type.
Tanysphyrus (Tanysphyrus) lemnae but something is not clear with the author, it is written everywhere (Paykull, 1792), but here http://www.faunaeur.org/full_results.php?id=217928 (Fabricius 1792)
[attachmentid()=148991]

And Fabricius and Paikul described it in the same year, so now you can figure out who did it earlier. More correctly, most likely, Tanysphyrus (s. str.) lemnae (Paykull, 1792)

Hydrochus ignicollis Motschulsky, 1860

Isn't it elongatus? In ignicollis, the pronotum is usually wider and the elytra are less shiny than the pronotum.

Many thanks to Stas! Yes, and in fact elongatus, at the base of the 3rd interval of the keel no.

Hydrochus ignicollis Motschulsky, 1860
Samara region, Kinelsky district, Turgenev dachas, lake, 03.05.2010. leg. I
am

Saprobiont aquarius. Adults prefer to feed on rotting banana leaves. It looks like the first image of the view.

Dactylosternum hydrophiloides (Macleay, 1825)
Thailand: Huai Kaeo village, Mae On, Chiang Mai, N 18°53'36" E 99°15'53", h = 500 m, 09-11.08.2009, D.V. Potanin leg.
Length - 7.5 mm.



This post was edited by botanque - 08/20/2012 21: 27

Our usual water lover.

Laccobius (s. str.) minutus (Linnaeus, 1758)
Orenburg region, Buzuluksky bor, river, at the water's edge, 11.06.2010. leg. I
Length-3.5 mm
.

Dryops ex gr. auriculatus (Geoffroy, 1785)
Tambov region, Michurinsky district, near the village of Staraya Kazinka, a puddle in a mixed forest (there were a lot of them there, this is in the reports for last year) 21 V 2011





When am I going to buy myself some normal optics

This post was edited by AGG - 01.09.2012 19: 40

Returning to the topic of D. latissimus distribution. There are some misunderstandings.
Zaitsev F. (1953) indicates the Astrakhan region. All followers tend to link to it, which is what I find.. But in real life, I have not yet found confirmation of this information. Probably not looking there. So far, the southernmost point is looming - Usmansky Bor in the Voronezh Region (data from A. A. and Prokin). However, Europeans (Konrad Dettner, Bayreuth, & Siegfried Kehl, Bayreuth, 2009) draw the range of the species up to the Caspian Sea. Well, the north of the Astrakhan region, as Zaitsev points out, did not go anywhere...
Is anyone familiar with entomologists from Astrakhan? People I've interviewed before..in particular, experts of the Astrakhan Nature Reserve deny finding the species there. There's a catch somewhere. Who is competent? Thanks!