Identification of Hymenoptera (wasps, bees, ants)

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23.07.2011 6:13, akulich-sibiria

Something from Ancistrocerus, I think it is ichneumonideus male, although possibly trifasciatus.
Propodeum leathery, slaboblestyaschiy.9-10 mm. . The 2nd sternite is uniformly convex.The ridges on the basal transverse sulcus are longer in the center than on the sides. The back of the box has no yellow pattern. There are 3 yellow bandages on the abdomen. The bottom of the main part of the mustache is brown. On the ext.on the side of the eyes along the yellow stroke, not reaching the eye socket. It is difficult to understand, the ratio of length and width of the architrave seems square. The dots are quite large, but not deep. Zhg. sawyere from the bottom is almost completely red, darkened in the middle.
picture: DSCN8168_.jpg

This post was edited by akulich-sibiria - 23.07.2011 06: 48

23.07.2011 6:35, akulich-sibiria

According to the DV determinant, I go to the female Ancistrocerus parietinus.. 10-11 mm. The 2nd sternite is uniformly convex. The color of the legs is rusty-red. The flagellum of the mustache is rusty-red on the lower segments and upper 3 parts, the middle parts seem to be completely black. On the tergites there are 4 bandages, on the 5th tergite there is a yellow spot in the middle of the apex, on the last tergite there are also small two spots. On the head there are rather long hairs, the first tergite with raised hairs. At the inner edge of the eyes, there is a single red spot on the platypus.
The platypus is quite wide, tapering to the top, not elongated. Full yellow baldric on the second sternum and with a thin strip on the 3rd with extensions on the sides. The middle and hind legs are light. On the shield and on the sides of the chest there is a small yellow-red spot.
although possible ichneumonides or trifasciatus....

This post was edited by akulich-sibiria - 23.07.2011 06: 45

23.07.2011 8:40, akulich-sibiria

Alexander you are absolutely right!! This is Symmorphus I'm leaning towards crassicornis female, though as a variant of murarius (nothing to compare the pits behind the ocelli with). 15-16 mm. Indeed, a longitudinal depression is visible on the first tergite. Behind the eyes are depressions with hairs. The top of the chest is covered with long hairs, just like on the head. The parietal fossa is located close to each other. The sides will break. segments in irregular folds, some raised. The lower legs are mostly yellow. 1st tergite in rough, rather thick dotted line. On the top of 2-3 tergites, the points are rougher than on the rest. There is a roller on the fold of the first tergite, but it doesn't really stand out all the way. There are no yellow spots on the chest, only on the pronotum. The handle of the mustache is yellow-red at the bottom.
picture: DSCN8177_.jpg