Identification of beetles (Coleoptera)

Moscow region Ramenskiy district vicinities of the village. Khripan, dacha
24.05.2023

Pictures:

1DSC05845.jpg — (369.65к)

This is Pterostichus (Eosteropus) japonicus (Motschulsky, 1860)

Thank you so much for your reply! In the presented specimen, on the pronotum, there are point depressions along the central line, parallel to each other in a mirror (as seen in the photo). This distinguishes it from the online photos of Pterostichus (Eosteropus) japonicus (Motschulsky, 1860). Doesn't it matter? If you need images of specific structural elements of this beetle, for more accurate determination, (except for the genitals) I can provide. If this beetle is unambiguously Pterostichus (Eosteropus) japonicus (Motschulsky, 1860), then I will stop there, tick and write it down.

Larinus most likely sturnus

Depressions on the pronotum are an individual feature of the beetle. They do not cause any doubts about the definition. Important in this case is the structure of the last sternite of the abdomen, but what is visible is enough to determine

Khabarovsk Territory, Komsomolsky district, Verkhnetambovskoe village, 10a Naberezhnaya street. 50.670321, 137.396470. September 29, 2023 at 14: 30 local time. On a wooden sidewalk, sunny day.
1 and 2 photos - natural lighting;
3-artificial lighting.

Pictures:

1699834478040.jpg — (274.02к)


1699834386517.jpg — (329.83к)


1699834130975.jpg — (273.03к)

Khabarovsk Territory, Komsomolsky district, Verkhnetambovskoe village, 10a Naberezhnaya street. 50.670321, 137.396470. September 29, 2023 at 14: 30 local time. On a wooden sidewalk, sunny day.
1 and 2 photos - natural lighting;
3-artificial lighting.

Trichotichnus (Trichotichnus) coruscus (Tschit. 1895)
Vyacheslav Sergeevich, if you need to identify ground beetles with DV-write better in PM, get it faster

Khabarovsk Territory, Komsomolsky district, Verkhnetambovskoe village, 10a Naberezhnaya street. 50.670321, 137.396470. October 23, 2023 at 15: 30 local time. In a rotten log. Cloudy weather t°~+5-+7.
PS: Kirill Vladimirovich, I couldn't answer you in hp, I didn't understand how to attach a photo to the message.

Pictures:

1699961869029.jpg — (284к)

Khabarovsk Territory, Komsomolsky district, Verkhnetambovskoe village, 10a Naberezhnaya street. 50.670321, 137.396470. October 23, 2023 at 15: 30 local time. In a rotten log. Cloudy weather t°~+5-+7.
PS: Kirill Vladimirovich, I couldn't answer you in hp, I didn't understand how to attach a photo to the message.

Pterostichus (Eosteropus) sp., as a female. The most likely candidate is tuberculiger (Tschitscherine, 1897), but not the commission

Help, please, opredeoitsya with the type of pillmaker.
Caught in a suburban area near Moscow on June 22. Length 8 mm.

I can't decide between the two types:
1) Byrrhus fasciatus.
2) Byrrhus piula.

It seems that both are more or less suitable.

Help, please, opredeoitsya with the type of pillmaker.
Caught in a suburban area near Moscow on June 22. Length 8 mm.

I can't decide between the two types:
1) Byrrhus fasciatus.
2) Byrrhus piula.

It seems that both are more or less suitable.

Well, Byrrhus (s) from the photo is very strange...
Try using the binoculars in this table: https://coleonet.de/coleo/texte/byrrhus.htm

Help, please, opredeoitsya with the type of pillmaker.
Caught in a suburban area near Moscow on June 22. Length 8 mm.

I can't decide between the two types:
1) Byrrhus fasciatus.
2) Byrrhus piula.

It seems that both are more or less suitable.

Take a picture of your upper lip

Well, Byrrhus (s) from the photo is very strange...
Try using the binoculars in this table: https://coleonet.de/coleo/texte/byrrhus.htm

Victor, thank you for the tip-off to a good definitive table!

1) Pronotum, like, finely wrinkled between the dots.



2) Belly with very fine hairs.



From all this, I conclude that this is the most banal Byrrhus piula.

Elizar, I could only take a picture of my lip like this. I will be grateful if you share your thoughts.



This post was edited by pierrevanstulov - 19.11.2023 21: 46

the photo of the lips is not ice, you can't see what I wanted to see... But after looking at your fasciatus / pilula, I'm inclined to think that you have B. pilula

help identify three large barbel beetles from South Africa, pliz. unfortunately, I can't attach files to the message in any way, so I can only send the photo to mail

here in the cloud are photos of beetles from South Africa, which I ask you to identify
https://cloud.mail.ru/public/yCya/AgUfo1RaQ

Hello! I wanted to ask for help, but I can't attach a photo to the message. I thought I was the only one with this problem. How or where can I send a photo?

Hello. I want to ask a question that entomologists hardly have the answer to.
The problem is that I often see convex beetles, semi-circular in shape, living in a warm radon source with an admixture of hydrogen sulfide. They crawl on the border of water and air. The length is approximately mm 3.There is no photo. I didn't find any information on the Internet.

Hello. I want to ask a question that entomologists hardly have the answer to.
The problem is that I often see convex beetles, semi-circular in shape, living in a warm radon source with an admixture of hydrogen sulfide. They crawl on the border of water and air. The length is approximately mm 3.There is no photo. I didn't find any information on the Internet.

It may well be someone from the Hydrophilidae or even wider - Hydrophiloidea. But guessing without a photo is nothing.

The nutcracker ate all my nerves. Length 9 mm, caught 24.06 in the near Moscow region.

It is not suitable for any species according to the "Determinant of insects of the European part of the USSR". Maybe it's time to run and register the type?




Here are the results of my ordeal (by family):
Adelocera — almost all species are larger than mine, A. quercea-red-brown
Lacon-L. mirinus is larger than mine, and L. crenicollis is found in the Crimea and the Caucasus
Alaus — bigger than mine
Dima — found in the Carpathians
Corymbites — almost all larger than mine, C. castaneus has yellow elytra
Selatosmus-mostly larger or smaller than mine, S. costalis is found in the north, S. bipustulatus has spots at the base of the elytra
Hypoganus-have light legs and brown elytra
Prosternon — wide, with an iridescent pattern
Orithales — smaller than mine
Ludius — bigger than mine
Dolopius — smaller than mine
Sericcus-light legs (brown or brown)
Agriotes-mostly larger or smaller than mine, A. lineatus is not suitable in color, A. ustulatus is not suitable in color, A. litigiosus is found in the Crimea, A. obsculus-not suitable, since the pronotum has a visible border; A. brevis lives in the South, A. caspicus lives in the South.
Adrastus — smaller than mine
Synaptus — there should be a scapula on the third segment of the foot
Idolus — found in the South and smaller than mine
Betarmon — smaller than mine
Aeoloides — smaller than mine
Aeoloderma — smaller than mine
Drasterius — smaller than mine
Porthmidius — smaller than mine
Elater — from those that fit in size: E. balteatus-red elytra, E. tristus-has yellow spots, but mine does not, E. Praeustus - red elytra, E. sanguinolentus-red elytra, E. Pomonae-red elytra, E. nigerrimus-in black hairs, and I have yellow hairs, E. elogantulus-yellow elytra, E. tauricola-Found in the Crimea
Procraerus - smaller than mine
Megapenthes — found in the South
Hypnoidus — smaller than mine
Cryptohypnus — smaller than mine
Melanotus — bigger than mine
Limoniscus — bigger than mine
Pheletes — smaller than mine
Limonius — have a different structure of antennae
Leptoschema — brown
Harminius — bigger than mine
Athous — from those that fit in size: A. tartarus is found in the Crimea, A. vittatus the gaps between the dots on the pronotum should be less than or equal to the diameter of the dots (in mine they are clearly larger), A. subfuscus-brown, whiskers and legs are brown-yellow, A. dilaticornis-lives in the Crimea, A. mollis - it is found in the Carpathians, A. jejunus - brown elytra, A. bicolor-not suitable in color
Cardiophorus — not suitable, as the lateral edge of the pronotum is not bent;
Paracardiophorus-smaller than mine
Denticollis — larger than mine

The nutcracker ate all my nerves. Length 9 mm, caught 24.06 in the near Moscow region.

It is not suitable for any species according to the "Determinant of insects of the European part of the USSR". Maybe it's time to run and register the type?




Here are the results of my ordeal (by family):

Adelocera — almost all species are larger than mine, A. quercea-red-brown

Lacon-L. mirinus is larger than mine, and L. crenicollis is found in the Crimea and the Caucasus

Alaus — bigger than mine

Dima — found in the Carpathians

Corymbites — almost all larger than mine, C. castaneus has yellow elytra

Selatosmus-mostly larger or smaller than mine, S. costalis is found in the north, S. bipustulatus has spots at the base of the elytra

Hypoganus-have light legs and brown elytra

Prosternon — wide, with an iridescent pattern

Orithales — smaller than mine

Ludius — bigger than mine

Dolopius — smaller than mine

Sericcus-light legs (brown or brown)

Agriotes-mostly larger or smaller than mine, A. lineatus is not suitable in color, A. ustulatus is not suitable in color, A. litigiosus is found in the Crimea, A. obsculus-not suitable, since the pronotum has a visible border; A. brevis lives in the South, A. caspicus lives in the South.

Adrastus — smaller than mine

Synaptus — there should be a scapula on the third segment of the foot

Idolus — found in the South and smaller than mine

Betarmon — smaller than mine

Aeoloides — smaller than mine

Aeoloderma — smaller than mine

Drasterius — smaller than mine

Porthmidius — smaller than mine

Elater — from those that fit in size: E. balteatus-red elytra, E. tristus-has yellow spots, but mine does not, E. Praeustus - red elytra, E. sanguinolentus-red elytra, E. Pomonae-red elytra, E. nigerrimus-in black hairs, and I have yellow hairs, E. elogantulus-yellow elytra, E. tauricola-Found in the Crimea

Procraerus - smaller than mine

Megapenthes — found in the South

Hypnoidus — smaller than mine

Cryptohypnus — smaller than mine

Melanotus — bigger than mine

Limoniscus — bigger than mine

Pheletes — smaller than mine

Limonius — have a different structure of antennae

Leptoschema — brown

Harminius — bigger than mine

Athous — from those that fit in size: A. tartarus is found in the Crimea, A. vittatus the gaps between the dots on the pronotum should be less than or equal to the diameter of the dots (in mine they are clearly larger), A. subfuscus-brown, whiskers and legs are brown-yellow, A. dilaticornis-lives in the Crimea, A. mollis - it is found in the Carpathians, A. jejunus - brown elytra, A. bicolor-not suitable in color

Cardiophorus — not suitable, as the lateral edge of the pronotum is not bent;

Paracardiophorus-smaller than mine

Denticollis — larger than mine

Hemicrepidius niger (Linnaeus, 1758) In" green " it is known as Athous niger

Hemicrepidius niger (Linnaeus, 1758) In "green" it is known as Athous niger

And what about the fact that Athous niger according to the "green" 10-14 mm, and mine is 9 mm long (not even 9.5, but exactly 9).

But what about the fact that Athous niger according to the "green" 10-14 mm, and mine is 9 mm long (not even 9.5, but exactly 9).

Sometimes I ate badly

Sometimes, I ate poorly

In general, yes, according to the photos, he is right there. Thank you very much!

In general, yes, according to the photos, he is right there. Thank you very much!

When determining the size, you need to take into account, but first of all you need to look at the signs.

When determining the size, you need to take into account, but first of all you need to look at the signs.

The size was bribed by the fact that it is very easy and accurate to check, in contrast to the fact, for example, that "the hip tires of the rear basins are barely narrowed outwards". But, as I understand it, it is impossible to focus on it as a decisive factor (at least for the difference of 1 mm), since the boundaries were determined based on a certain sample, and not on the general population.

This post was edited by pierrevanstulov - 12/20/2023 01: 36

Are barbels the same species or different?
Buryatia, Tunka chars, mixed forest at an altitude of 1500m.

1. L-13mm


2. L-12mm


3. L-11mm


4. L-9mm

Are barbels the same species or different?
Buryatia, Tunka chars, mixed forest at an altitude of 1500m.

1. L-13mm


2. L-12mm


3. L-11mm


4. L-9mm

Not just different species, but different genera.
1,2 - common Brachyta variabilis.
3,4 - Acmaeops septentrionis

This post was edited by Gray-Ejik - 21.01.2024 15: 45

Not just different species, but different genera.
1,2 - common Brachyta variabilis.
3,4 - Acmaeops septentrionis

Thanks! And I, sinfully, thought that they were males-females.
And what kind of Brachyta breiti Tippm., 1946 on the Zinovsky site Oleg Berlov cites? Just out of ocd. Mond.

The post was edited by MIV-21.01.2024 19: 15

Thanks! And I, sinfully, thought that they were males-females.
And what kind of Brachyta breiti Tippm., 1946 on the Zinovsky site Oleg Berlov cites? Just out of ocd. Mond.

The Tunka Loach taxon B. breiti has indeed been described. If you like a more fractional classification, then sign it like this. I doubt the validity of individual species in the B. variabilis group, in my opinion, the distinctive features given are very weak, since the species is brutally variable not only in color.

The Tunka Loach taxon B. breiti has indeed been described. If you like a more fractional classification, then sign it like this. I doubt the validity of individual species in the B. variabilis group, in my opinion, the distinctive features given are very weak, since the species is brutally variable not only in color.

I'm a conservative .

Tell me, pliz, type of nutcracker. August, Kaluzhskaya. Thanks

Pictures:

1111_____.jpg — (284.24к)

Good afternoon.

Please help me identify the ground beetle.

Date of collection: 08.07.2022, Novosibirsk, Bugrinskaya grove (rather large and wild forest area), night time.

Initially, it was identified as a rather rare Carabus menetriesi, since the suture keel is practically absent, the body sculpture is more slender. But there are doubts that it can still be Carabus granulatus.
Which option is correct?

For comparison, I added large photos of the elytra pattern of this "indeterminate" type and Carabus granulatus on the right.

This post was edited by kvama - 01.03.2024 10: 00

Pictures:

DSCN9433_2.jpg — (292.91к)


DSCN9433.JPG — (319.57к)

Good afternoon.

Please help me identify the ground beetle.

Date of collection: 08.07.2022, Novosibirsk, Bugrinskaya grove (rather large and wild forest area), night time.

Initially, it was identified as a rather rare Carabus menetriesi, since the suture keel is practically absent, the body sculpture is more slender. But there are doubts that it can still be Carabus granulatus.
Which option is correct?

For comparison, I added large photos of the elytra pattern of this "indeterminate" type and Carabus granulatus on the right.

In Novosibirsk, menetriesi is not present, it is a common granulatus.

I didn't get it: what does "type"have to do with it?

Please help me determine if I found an insect on the bed

Pictures:

IMG_6078.jpeg — (234.82к)

It looks a lot like Stegobium paniceum. But you can't tell more from this picture.

In Novosibirsk, menetriesi is not present, it is a common granulatus.

According to maps of protected areas, Carabus menetriesi reaches the Sverdlovsk region and even Tyumen, which is not very far from Siberia.

Could it be a Carabus maeander? Here is very much confused by the missing seam keel, and in comparison with the usual Carabus granulatus, this type is smaller and more sophisticated.

According to maps of protected areas, Carabus menetriesi reaches the Sverdlovsk region and even Tyumen, which is not very far from Siberia.

Could it be a Carabus maeander? Here is very much confused by the missing seam keel, and in comparison with the usual Carabus granulatus, this type is smaller and more sophisticated.

In the Novosibirsk region, menetriesi finds are likely only in the northern regions and in the upper swamps. In the vicinity of Novosibirsk, it is not reliably found. Your photos are 100% granulatus. The keel you are writing about is quite distinct, though faintly pronounced. The meander belongs to a different subgenus, and there are much more differences than the presence or absence of a keel. Collect a series of hundreds of granulates, and you won't find two similar ones.

In the Novosibirsk region, menetriesi finds are likely only in the northern regions and in the upper swamps. In the vicinity of Novosibirsk, it is not reliably found. Your photos are 100% granulatus. The keel you are writing about is quite distinct, though faintly pronounced. The meander belongs to a different subgenus, and there are much more differences than the presence or absence of a keel. Collect a series of hundreds of granulates, and you won't find two similar ones.

Thank you, I agree with you. I'll change the label to the correct one. I really wanted a rarity in the collection.

The post was edited by kvama-07.03.2024 05: 03