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Identification of beetles (Coleoptera)

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

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16.05.2009 20:28, Алексей Сажнев

I would say Dytiscus marginalis marginalis Linnaeus, 1758
Likes: 1

16.05.2009 20:48, Sungaya

and the fact that they flew in the same place, on the same night, is it normal?

16.05.2009 21:07, Алексей Сажнев

the main thing is not to mate )) well, their habitats are the same, so I think it's okay

16.05.2009 21:23, Sungaya

got it, thanks!
And here's another bug. Bigger than the previous ones.

Pictures:
picture: 04.jpg
04.jpg — (142.01 k)

16.05.2009 21:53, Алексей Сажнев

Hydrophilus piceus Linnaeus, 1758
Likes: 1

16.05.2009 21:57, Sungaya

but such a small one?

Pictures:
picture: 08.jpg
08.jpg — (130.31к)

16.05.2009 21:57, Bad Den

It's not Hydrophilus, Hydrous piceus
Likes: 1

16.05.2009 21:59, Sungaya

Kaaak!? Again? smile.gif

16.05.2009 22:09, Sungaya

is this the same person or someone else?

Pictures:
picture: 09.jpg
09.jpg — (147.86 k)

16.05.2009 22:09, Алексей Сажнев

and Hydrous L., 1775 seems to have been reduced to synonyms?

16.05.2009 22:15, Алексей Сажнев

like dimidiatus Bergstrasser, 1778


apparently I got too excited - this is more likely D. semisulcatus - and the second one is also
Likes: 1

16.05.2009 22:24, Sungaya

and this one?

Pictures:
picture: 05.jpg
05.jpg — (134.58 k)

16.05.2009 23:14, Fornax13

and this one?

Female Acilius sulcatus.
Likes: 1

16.05.2009 23:16, Алексей Сажнев

Acilius sulcatus, female
Likes: 1

16.05.2009 23:21, Sungaya

and these are her boyfriends?

Pictures:
picture: 06.jpg
06.jpg — (129.36к)

picture: 07.jpg
07.jpg — (103.46к)

16.05.2009 23:22, Fornax13

but such a small one?

Its front legs don't form a disk, as far as I can see.
See if there is a raised transverse striation on the elytra. If there is, then one of the Colymbetes.

16.05.2009 23:23, Fornax13

and these are her boyfriends?

Almost smile.gif
The first one is Acilius canaliculatus, the second one is really A. sulcatus
Likes: 1

16.05.2009 23:26, Fornax13

is this the same person or someone else?

And this animal insanely reminds me of some simple Hydaticus.

16.05.2009 23:30, Sungaya

Its front legs don't form a disk, as far as I can see.
See if there is a raised transverse striation on the elytra. If there is, then one of the Colymbetes.

There was no transverse striation on the elytra. Not even a hint of it.
But there are weak longitudinal grooves.

What does it mean?

16.05.2009 23:34, Алексей Сажнев

here I nafludil, I size for 4 cm accepted! the horror! Fornax13, not Hydaticus piceus?

16.05.2009 23:40, Fornax13

There was no transverse striation on the elytra. Not even a hint of it.
But there are weak longitudinal grooves.
What does it mean?

Look under the magnification smile.gif
Looks like it?
http://www.zin.ru/Animalia/coleoptera/rus/dyt_904.htm

16.05.2009 23:46, Fornax13

here I nafludil, I size for 4 cm accepted! the horror! Fornax13, not Hydaticus piceus?

And what is Hydaticus piceus? shuffle.gif
Alternatively-Hydaticus seminiger
Likes: 1

17.05.2009 0:02, Алексей Сажнев

synonym for rufifrons, but that's not it ))

17.05.2009 0:03, Sungaya

Look under the magnification smile.gif
Looks like it?
http://www.zin.ru/Animalia/coleoptera/rus/dyt_904.htm

While I'm looking for striation, please look at this beast here

Pictures:
picture: 10.jpg
10.jpg — (136.6к)

17.05.2009 0:15, Fornax13

Well, I'm just such a specialist in gidradefaga that in general ppc... teapot.gif
Judging by its size and habit, it is the larva of Dytiscus sp. Then only with a good magnification and with accurate measurements on alcohol material.
Likes: 1

17.05.2009 0:30, Sungaya

Look under the magnification smile.gif
Looks like it?
http://www.zin.ru/Animalia/coleoptera/rus/dyt_904.htm

Yes, it looks like this photo.

And there was a streak.... if this is it. Under the magnifying glass, the elytra resemble a school common notebook with an oilcloth cover. I just want to run my fingernail over them to make it click!
In addition to the numerous transverse lines, there are also oblique lines, but much more rare.
Was it about these striations that we were talking about?

17.05.2009 0:39, Fornax13

Yes, it looks like this photo.

And there was a streak.... if this is it. Under the magnifying glass, the elytra resemble a school common notebook with an oilcloth cover. I just want to run my fingernail over them to make it click!
In addition to the numerous transverse lines, there are also oblique lines, but much more rare.
Was it about these striations that we were talking about?

Well, yes, something like that is smile.gif
Likes: 1

17.05.2009 12:23, Алексей Сажнев

but such a small one?


C. paykulli Erichson, 1837), and the second H. (Hydaticus) seminiger (De Geer, 1774)

This post was edited by Alexey Sazhnev - 05/17/2009 12: 28
Likes: 1

17.05.2009 13:24, Liparus

Well, I'm just such a specialist in gidradefaga that in general ppc... teapot.gif

And how to catch these animals?and then I met one in the greenhouse by chance on the ground
On a boat can you swing with a net (blindly) under water?

17.05.2009 13:45, Алексей Сажнев

in the light, with a water net, and in traps (like fish) - but this is for large ones

17.05.2009 13:45, AlexEvs

And how to catch these animals?and then I met one in the greenhouse by chance on the ground
On a boat can you swing with a net (blindly) under water?


No, so you're unlikely to catch anything. It is necessary to look under the stones lying in the water, on plants, too, you can. With a water net, you can dig out any aquatic vegetation and look in it. Well, if you drive a net in the thickets of aquatic vegetation (the same reed), something can also come across.

17.05.2009 13:47, Алексей Сажнев

1. You need a water net, it is better to make a material called
mill gas, or in stores (household)they sell a bag for
soft washing clothes. If this bag is stitched, it will just go,
but you need to take a large bag.
After making a few swings in the water, along with
the vegetation, you take out the net and let the water drain. Then you put
everything on plastic and collect the fleeing beetles.

2. Large beetles can be caught with a bottle trap. You cut off
the upper part of the plastic 1.5 l bottle and insert it on the contrary,
it turns out a kind of fish samolovka. You put the bait (pieces of fish
or meat), fill it with water and put it in a pond. Floaters come in but
can't choose to go back. It is better to put it on for several hours or overnight.
Likes: 2

17.05.2009 13:54, косинус

help identify beetles

Pictures:
picture: DSC01078.JPG
DSC01078.JPG — (118к)

17.05.2009 14:09, Алексей Сажнев

I will allow myself to slightly edit your photo - so you can see the beetles better

Pictures:
picture: post_50935_1242557640.jpg
post_50935_1242557640.jpg — (279.77к)

17.05.2009 14:20, Fornax13

2-Hydaticus of some sort, possibly aruspex or continentalis.
3-like Rhanthus like exoletus
the first - as I did not see, and do not see... Perhaps Ilybius or Agabus is like this

This post was edited by Fornax13-17.05.2009 14: 27

17.05.2009 14:23, косинус

thank you

17.05.2009 14:33, Алексей Сажнев

and the latter isn't a Rhantus case either?

17.05.2009 14:38, косинус

and this one who

Pictures:
picture: DSC01080.JPG
DSC01080.JPG — (92.81к)

17.05.2009 14:43, Алексей Сажнев

Cryptocephalus sp. cordiger looks like

17.05.2009 14:44, Victor Titov

and this one who

Cryptocephalus octopunctatus (Scopoli, 1763).
Likes: 1

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