Dryudella stigma

Dryudella stigma
Dryudella stigma, male
Systematics
Class : Insects (Insecta) Order : Hymenoptera (Hymenoptera) Superfamily : Apoidea Family : Crabronidae Genre : Dryudella Type : Dryudella stigma
Scientific name
Dryudella stigma
( Tank , 1809)

Dryudella stigma is a Hymenoptera from the family of Crabronidae .

features

The wasp reaches a body length of 7 to 11 millimeters (females) or 6 to 10 millimeters (males). They look very similar to Dryudella pinguis and have a combination of characteristics that is difficult to understand. The females can be recognized by the rounded tip of the clypeus , among other things , in the males this has no angles to the side parts.

Occurrence

The species is distributed in Central and Northern Europe to the Arctic Circle and in Asia to Mongolia. It settles exclusively in areas with drift sand and dry and temperature-favored forest edges with sandy soils. The animals fly in one generation from June to September. The species occurs very rarely in the south, rarely in the north.

Way of life

The very fast-flying females create their nests in loose communities. The nest is about 10 centimeters deep and consists of one to three consecutive cells, each separated with sand. Branched nests also occur, which can then have more cells, similar to Astata boops . The brood is infested with larvae and probably imagines of scutelleridae the genera Phimodera and Sciocoris supplies. Eggs are always laid on the first bug in the cell. Males observe the females from sitting guards near the nests and not only fly from there to mate, but also frequently patrol near the nests.

supporting documents

literature

• Rolf Witt: Wasps. Observe, determine. Naturbuch-Verlag, Augsburg 1998, ISBN 3-89440-243-1 .

Individual evidence

1. ↑ ^{a b c} Rolf Witt: Wasps. Observe, determine. Naturbuch-Verlag, Augsburg 1998, ISBN 3-89440-243-1 .

Web links

Commons : Dryudella stigma  - collection of images, videos and audio files