Identification of Hymenoptera (wasps, bees, ants)

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19.11.2011 21:09, akulich-sibiria

Simmorphus 8-9 mm. Krasnoyarsk, indoors. The female. The view is difficult. The parietal fovae are spaced quite far apart, slightly smaller than the size of the lateral ocelli. Two-pronged platelet with a shallow recess between them. The dotted line is quite rough and thick. The hairs on the back are short. The pronotum angles are obtuse and rounded.. At the last point, they are rare and not large. The sides of the mid-back are slightly glassy, with very rare weak points. Valvula gap. the segments at the top are pointed, elongated into rather long and sharp prong. The sides of the segment are obliquely-longitudinally wrinkled. The median field is faintly shiny, with slightly pronounced oblique grooves, and roughly cellular on the sides. The vertical part of the first tergite is equal to the horizontal one. The longitudinal stripe is pronounced. On the abdomen there are only 2 yellow stripes on 1-2 tergites. Perhaps it is S. lucens Kost.
picture: DSCN9065_.jpg

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20.11.2011 19:04, akulich-sibiria

Minusinsk, south of the Krasnoyarsk Territory, dacha plot, on the raspberry. About 10 mm.
2 return veins enter the second radiomedial cell. Wing caps are large, pointed at the back. 1st tergite without a sharp roll and a break between two planes, rounded. 1st tergite behind the yellow border without transparent border. Zadneschitik behind sharply abrupt, shiny, with edges with two raised denticles. An intermediate segment at the bottom with a clear prong. Valvula dismembered.
The legs are almost completely red, only the base of the thighs is darkened.
I think this is Antepipona orbitalis female
Say, the 3rd radiomedial cell is divided by a transverse vein – this is often found. I noticed this on one wing of this specimen. (see photo )
picture: DSCN9100_.jpg

This post was edited by akulich-sibiria - 20.11.2011 19: 05

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24.11.2011 13:24, akulich-sibiria

Khakassia River, the bank of the Bely Ius River, on the umbrella islands.
Vesicles, srednespinka in the same long hairs as the platypus (especially at its base), there are also medium-long hairs on the second tergite, in addition, in long raised hairs basins. Hairs on the 2nd stubble are short.
The border behind the yellow stripe on the 2nd tergite is black, there are bandages on 3-4 tergites, as well as two points on the 5th. 4-5 sternites in fairly clear and uniform points. The pubescence is rather thick, raised, but not long. The hind thighs are black almost to the knees, the lower legs are light along the entire length. The legs are also light, the last segment of the legs is slightly darkened. Trim on top without deep indentation. There is a black border around the edges of the trim, but it does not reach the top, where the border color is light. There is a fairly deep hole at the top (relative sign) The spot on the forehead is slightly elongated, does not reach far to the platypus. The last part of the mustache is light, slightly bent, along the inner edge in very poorly noticeable hairs, which, however, form a row at the top and are visible.
It's quite difficult to understand what kind of species it is, but I still lean towards Eumenes coarctatus, mainly because of the hairs on the antennae. But perhaps it is Eumenes peduncularis or coronatus
picture: Eumenes_pedunculatus__Pz______.jpg

picture: Eumenes_pedunculatus__Pz______.jpg

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25.11.2011 2:55, akulich-sibiria

The last segment of the antennal flagellum is typical of Eumenes coarctatus, but in Eumenes peduncularis and E. coronatus they are not, so this is not them. But again, I can't make out what's wrong with the dotted line of the last sternite. If it is indeed E. coarctatus, it should not have separate scattered points (see the figure in the article by W. Gusenleitner).

The definitions didn't say anything about the punctuation of the last sternite. As I recall, it differs from the dotted lines of the previous sternites. From memory, we can say that it is rough-trained with very weak dotted lines, at home I will double-check and look at the drawings.
Of this genus, I still have one more species, named as E. mongolicus in the evening I will post photos.

26.11.2011 20:20, akulich-sibiria

Rep. Tyva, the Bank of the Yenisei, on the fly. About 13 mm. The hairs on the head, back and sides of the chest are long and raised. On 2 tergite and stubble very short. On the 2nd tergite from the sides in the first half there are a couple of fairly large spots and an apical band, followed by a transparent border. The tergite itself is not dense (in the center of the point is thicker), rather clear, but not deep points, on the sides of the point is very small and rare. From the 3rd sternite black. The platypus is completely black, shagreen, in rather rare spots, in long hairs. On the forehead there is a yellow patch of oblong shape, descending to the platypus. Thighs slightly above the middle are dark, lower legs are light, legs are light, on the middle legs the last three segments are darkened. On DV I go to Eumenes mongolicus female, on ECH I can't find anything similar, maybe sareptanus hairs on the temples near the eyes are short, then quite long .
picture: DSCN9129_.jpg

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28.11.2011 19:23, akulich-sibiria

Khakassia, the bank of the Bely Ius River. On umbrella sites. The shield is steep with denticles on the top. It is approached by two powerful teeth from below, formed by the side keels of the gap.a segment. The sides of the segment are longitudinally folded. The body is covered with thick but short raised hairs. The last segment of the middle and hind legs is darkened. On the second tergite after the light band, there is an edge border, but it is not visible that it would be bent to the top. Mandibles with a rather large yellow spot. In the middle of the 2nd sternite, I did not find a clear longitudinal groove. The yellow band of the first tergite is not particularly expanded on the sides, it has a sinuous pattern. There are 5 yellow bandages on the tergites. On the 6th, there is a barely noticeable yellow-brown spot. It is closest to Euodynerus notatus, but the absence of a longitudinal groove on the second sternum and a bent marginal border is disconcerting.
picture: DSCN9150_.jpg

28.11.2011 22:02, Кархарот

No, closer to E. quadrifasciatus. A clear sign - pubescence on the back is almost as long as on the forehead. In addition, the mandibles are too yellow for E. notatus, even more yellow than I have in the south. Well, there is no furrow. And there is a long hairline at the temples. It's a pity you can't see the pubescence of the pleura-this is also a good sign. If I'm right, there should also be well-developed hairs.

Thank you very much for the definitions

Yes, in general, not for that, you yourself have almost determined everything except S. connexus and this.
At the same time, I trained to determine from the pictures, it was not so easy.

Look again at the males of Ancistrocerus, A. parietinus should have a very wide platypus, and with the "normal" one - all A. parietum (as you can see in those photos that I sent, for some reason they are not attached here).

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29.11.2011 2:52, akulich-sibiria

No, closer to E. quadrifasciatus. A clear sign - pubescence on the back is almost as long as on the forehead. In addition, the mandibles are too yellow for E. notatus, even more yellow than I have in the south. Well, there is no furrow. And there is a long hairline at the temples. It's a pity you can't see the pubescence of the pleura-this is also a good sign. If I'm right, there should also be well-developed hairs.

Yes, in general, not for that, you yourself have almost determined everything except S. connexus and this.
At the same time, I trained to determine from the pictures, it was not so easy.
Look again at the males of Ancistrocerus, A. parietinus should have a very wide platypus, and with the "normal" one - all A. parietum (as you can see in those photos that I sent, for some reason they are not attached here).

I had an idea about quadrifasciatus, with which it was even more partially similar in DV than in EC, but it seems that it is indicated for this species-shaggy long hairs, which are not the same length on the head and on the back, namely long. Okay, I'll check it out again at home.

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03.12.2011 20:42, akulich-sibiria

Krasnoyarsk, the bank of the reservoir, on the umbrella. In early July. About 10 mm.
Shield on the sides without directed teeth. The legs are completely black. The 6th sternite is not elongated into a prong, there is no raised longitudinal keel on it. The forehead is evenly dotted, without shiny areas. The spurs of the hind legs are light, sharp, and curved at the apex. The median field of the intermediate segment is shiny, not dotted. Platypus at the base with a smooth longitudinal strip. Platypus in rather thick light hairs. Midrib in dense, uniform rough spots. On the first 3 tergites, the lateral fringes of light hairs are strongly interrupted, then they are hardly noticeable. The 6th tergite seems to descend in steps, and is widely rounded at the top. The last sign is suspicious, but I think it's still Hoplitis acuticornis female
picture: DSCN9178_.jpg