Identification of Hymenoptera (wasps, bees, ants)

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18.01.2012 14:10, akulich-sibiria

Alexander, unfortunately I don't have this article and I only found links to it on the Internet. In the other Nemkov determinants, I only have up to a kind of definition. Judging by the green determinant, Harpactus goes as a synonym to the subgenus Dienoplus in the genus Gorytes, while the difference between the genus Harpactus (the medial vein of the hind wings is located far from the end of the anal cell) is also indicated there. Therefore, I can write so that I came to Harpactus elegans Lep. using it, although it is not entirely clear from the ratio of length and width of the front part of the intermediate segment, if we assume that this part is wider than long, then as an option - tumidus Pz.
According to the DV determinant (there are not so many species) - also H. tumidus Pz.

18.01.2012 14:18, akulich-sibiria

I don't remember, I don't think I showed this crossocerus.
Caught in the south of the Krasnoyarsk Territory, Minusinsk, dry meadow, poplar. About 6 mm. Male
Abdomen is black. Tergites without indentation at the base. Tergites are very weak and finely dotted. The last tergite has more points than the previous tergite.
The platypus is black, with 4 prongs at the top. The mandibles are dark brown.
The thighs and shins are not thickened, and there are no spikes on the legs and legs. The middle thighs are hairy from below, but not very long.
Pronotum without sharp corners.
The hair on the head and back is light, pressed down. The lower part of the middle breast is covered with rather long, not thick hairs. The sides of the mid-chest are sparsely dotted and shiny.
The last part of the mustache seems to be straight cut, slightly drawn from the outside.
More like Crossocerus distiguendus A. Moraw male, I admit that it can be C. elongatulus
picture: DSCN8866_.jpg

18.01.2012 18:12, AVA

Alexander, unfortunately I don't have this article and I only found links to it on the Internet. In the other Nemkov determinants, I only have up to a kind of definition. Judging by the green determinant, Harpactus goes as a synonym to the subgenus Dienoplus in the genus Gorytes, while the difference between the genus Harpactus (the medial vein of the hind wings is located far from the end of the anal cell) is also indicated there. Therefore, I can write so that I came to Harpactus elegans Lep. using it, although it is not entirely clear from the ratio of length and width of the front part of the intermediate segment, if we assume that this part is wider than long, then as an option - tumidus Pz.
According to the DV determinant (there are not so many species there), it is also H. tumidus Pz.

Tomorrow I will do it and send it by soap.

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25.01.2012 22:06, Кархарот

Alas, not him! This is definitely not subfuscatus , this is another species that differs primarily in its small size. In this species, the head is densely pubescent with silver hairs so that light reflection is noticeable when illuminated, while in Prionyx subfuscatus, the head is barely pubescent with yellow hairs.

Unfortunately, the copy shown in the photo is "killed", but I personally saw this copy and there are a couple of exactly the same ones in my collection.

I don't dispute it. I also have small ones in my collection that are 1.2-1.3 mm long and large ones that are 2-2. 3 mm long. But I don't see any difference in the pubescence of their heads. One of these days I will be passing material on this kind to colleagues in Kiev, so we will figure it out soon.