Identification of Hymenoptera (wasps, bees, ants)

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24.07.2022 11:31, KorvinBF08

In continuation of the previous message:

Photo 3-5 - the second hymenopteran insect; in the material I find the head and the rest of the chest. Head width = 1.7 mm, height = 1.3 mm. Breast fr. length = 2.2 mm.
I suspect it's one of the sawflies. It may be possible to define it before the family. If not, it doesn't matter.

All material is from Novogrudok district of the Grodno region of the Republic of Belarus.

I express my gratitude in advance to all the professionals who will try to identify these hopeless instances.
Unfortunately, I myself have some kind of organic inability to identify hymenoptera: for me, they all look the same.

This post was edited by KorvinBF08-07/24/2022 11: 32

Pictures:
picture: IMG_20220724_104908.jpg

IMG_20220724_104908.jpg — (295.6к)

picture: IMG_20220724_104916.jpg

IMG_20220724_104916.jpg — (283.23к)

picture: IMG_20220724_104647.jpg

IMG_20220724_104647.jpg — (297.66к)

Likes: 1

25.07.2022 11:15, KorvinBF08

Ah, well, that's different, sorry. Where do you find so many corpses? On the highway?

And how many corpses is that? I don't have many of them, if anything. In the United States at the turn of the 19th and 20th centuries. and in the USSR, ornithologists did shoot birds; in their works, data on the nutrition of dozens and hundreds of specimens of birds of each species are given.
However, to date, this method of collecting material in most civilized countries is not practiced or simply impossible. Yes, and it is difficult to decide on such a thing, I agree. In addition, if you shoot birds, you will not publish your data in any European English-language journal for bioethical reasons.
So I consciously work with what I have: carcasses, carrion. Unfortunately, a lot of birds die: roads, mirrored windows, cats, natural predators, etc.

This post was edited by KorvinBF08-25.07.2022 11: 21

26.07.2022 20:39, TimK

Hello! Tell me, do you need other camera angles to determine frames 1-4? These are still images from the video, and I can try to make other camera angles. And to determine frame 7 (Lasius niger or Lasius platythorax), what angle is needed and what part of the body is in depth of field? 10 frames each - all three individuals are Camponotus ligniperda? The ant that is smaller in the center and the shape of the body and head are different. Is it the same species, but belongs to a different caste?

11. Formica polyctena
9. Formica cinerea
8, 10. Camponotus ligniperda
5, 6. Tetramorium caespitum
7. Almost certainly Lasius niger
4. Myrmica rubra
1,2,3. - Myrmica sp. In most cases, mirmiki can't be identified from photos. But Myrmica rubra can be identified, the differences are too characteristic. Try to catch a shot where you can see the antennal fossa and wrinkles around it.

The post was edited by TimK-26.07.2022 20: 45

Likes: 1

04.08.2022 11:26, KorvinBF08

Hello Dmitry!
1-2. Head of the Ichneumonidae horseman.
3-5. Chest with a high probability and possibly a head from a sawfly. I will assume from Argidae.

Hello, Evgeny!
Thank you so much for your reply.
You help out a lot with hymenoptera, I am very grateful to you!
I'm sorry that I didn't answer for a long time: I tried to learn at least a little bit about eardrums and checked your version about Ichneumonidae.

Yes, the wide, highly displaced antennal fossae, the typical clipeal fossae, and the shape of the head convince me that the rider of Ichneumonidae is in the photo 1-2. And while I haven't been able to find any genera with the appropriate head morphology to definitively clear all the questions for myself, it seems that the version with Ichneumonidae should be considered the only suitable one.

Well, the sawfly in photo 3-5, apparently, is unrealistic to determine. So I'll leave it as "other hymenoptera".

04.08.2022 11:28, KorvinBF08

So much is a lot, judging by the number of your photos posted for identification and the duration of the time interval for posting them. I am surprised, because I have wandered a lot in the woods and fields, but I don't remember meeting at least one whole carcass of a feathered bird. Either they eat them quickly, or they die in hard-to-reach places. Here there are as many small mammals as you want, and birds-bigwigs. But we don't have busy highways and mirrored windows. And after natural predators, horns and legs usually remain.

Have you tried investigating bird droppings for the same purpose?

ENO, I see you're interested in this topic. Yes, I have experience with fecal analysis. Write in PM, I will describe everything in detail.

Likes: 1

26.08.2022 16:41, f1dark

Precisely, why precisely one kind! Perhaps we have two of them, or perhaps more .. Indeed, it's a pity obviously .. I have an adequate number of police officers here, essentially dried, to some extent live, you could get guys ..
Furthermore, the scolia that is in the image above, about the size, she sits close to the establishing female, it was toward the start of May, by and large, she is some place somewhat more than 3 cm, whenever contrasted and a honey bee. What's more, her head isn't precisely similar to that of a macula, and her mustache is by all accounts unique .. Once more. I don't have any idea the number of species we that have, yet I've met something like 4, that is without a doubt (not including the disputable one in the image).