Ectemnius sexcinctus
| Ectemnius sexcinctus | ||||||||||||
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Ectemnius sexcinctus |
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| Scientific name | ||||||||||||
| Ectemnius sexcinctus | ||||||||||||
| ( Fabricius , 1775) |
Ectemnius sexcinctus is a hymenoptera belonging tothe Crabronidae family .
features
The wasp reaches a body length of 11 to 17 millimeters (females) or 10 to 14 millimeters (males). Ectemnius sexcinctus is to be confused with some very similar related species of the genus Ectemnius . In the females, the clypeus is hairy golden. Their sternites are spotted yellow at the apex. In the males, the fifth link of the antennae is three times longer than it is wide and has a tuft of hair on the tooth located there. The tergites of the abdomen all wear a yellow band.
Occurrence
The species is common in Europe to the south of Sweden and in Asia to the west of China, as well as in North America. It colonizes various dry to moist habitats with dead wood, also in human settlement areas, and occurs up to 800 meters above sea level. The animals fly in two generations from June to September. The species is widespread in the south and common in the north.
Way of life
The adults feed on nectar from umbellifers . The females prefer to build their nests exposed to the sun in rotten dead wood or in drill holes in the wood. Nests in expanded polystyrene and in rotten half-timbering have been found in human settlement areas. It happens that the nests are created jointly, sometimes even the same nest entrance is used as the starting point for several nests. If the space conditions are ideal, the nest can be very branched and laid out in grapes. Such nest systems can also be used by several generations in a row, with the nest then being cleaned and expanded each time. The gnawed wood material collects in a heap under the nest entrance. The nest entrance can be just above the ground or at a height of over 10 meters. The brood is mainly supplied with hover flies (Syrphidae). The females capture their victims by carefully sneaking up on them and then overpowering them.
literature
- Rolf Witt: Wasps. Observe, determine. Naturbuch-Verlag, Augsburg 1998, ISBN 3-89440-243-1 .