Black-brushed leaf cutter bee
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Black-brushed leaf cutter bee ( Megachile nigriventris ) |
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| Megachile nigriventris | ||||||||||||
| Schenck , 1868 |
The black-bellied leaf cutter bee ( Megachile nigriventris ), also black-bellied leaf cutter bee, is a species from the genus Megachile ( leaf cutter and mortar bees ) from the order of the hymenoptera .
features
The females become 13-17 mm long. The face is covered in black hair. The thorax and the first two tergites are hairy yellow-brown. The tergites 3–6 and the belly brush are black. The males are 14-16 mm tall, similarly colored and wear a white crest on the tarsi of the foreleg.
distribution
The species is widespread in the mountains of Central Europe (up to 2000 m) and Northern Europe to Central Asia. Megachlie nigriventris is a boreomontane species, that is, it lives in the boreal zone , further south only in mountains that offer it similar living conditions. In the boreal zone it occurs to the east of Siberia ( Amur Oblast ). It does not occur in northern Germany , but (albeit rarely) in Denmark. It can be found at the edges and clearings of forests and also in gardens, provided that there is dead wood .
Way of life
The black-brushed leaf-cutter bee lives solitary like all other leaf-cutter bee species . It flies in one generation from May (males) / June (females) to August. She mainly collects pollen and nectar for her progeny from pea butterflies . The nesting cells are laid out in dead wood and consist of self-gnawed corridors in rotten softwood from tree stumps, branches, old beams and posts. The up to 15 brood cells are lined with cut-outs from leaves, of which only the innermost layers are glued together. In search of suitable leaves, Megachile nigriventris flies up to 100 m. The leaf cuttings are transported between the legs like a small saddle. The wintering takes place as a resting larva in the cocoon.
Parasites
The brood cells are parasitized by the cone bees Coelioxys elongata and C. lanceolata (in the Alpine region) ( brood parasitism ).
Research history
When Adolph Schenck Megachile nigriventris (not as often reported erroneously, 1870) in 1868 described , lay him copies of Austria / Tyrol ago (sent by Camill Heller from Innsbruck ). In Schenck's time, Megachile nigriventris did not occur in the Duchy of Nassau , its actual area of study. The species is assigned to the subgenus Xanthosarus Robertson, 1903 within the genus Megachile . A synonym is Megachile hasticornis Cockerell, 1924
literature
- Paul Westrich : The wild bees of Baden-Württemberg. Ulmer Verlag, Stuttgart 1989, ISBN 3-8001-3317-2 , p. 741.
- Paul Westrich: Wild bees, the other bees. Publishing house Dr. Friedrich Pfeil, Munich 2011, ISBN 978-3-89937-136-9 .
- Annotated Red List of Hesse's bees - species list, distribution, endangerment. Ed. Hessian Ministry for the Environment, Energy, Agriculture and Consumer Protection. Wiesbaden 2009, p. 109.
Individual evidence
- ↑ M. Yu. Proshchalykin (2004): A Check List of the Bees (Hymenoptera, Apoidea) of the Southern Part of the Russian Far East. Far Eastern Entomologist 143: 1-17.
- ↑ HB Madsen & I. Calabuig (2010): Comments checklist over Danmarks bier - Del 3: Melittidae & Megachilidae (Hymenoptera, Apoidea). Entomologiske Meddelelser 78 (2): 73-99.
- ↑ AW Ebmer (1975): Halictidae described by Schenk (Ins .: Hymenoptera: Apoidea). Senckenbergiana biologica 56: 233-246.
- ↑ Schenck, Adolph: Descriptions of the Nassau bees . Second addendum. In: Yearbooks of the Nassau Association for Natural History, Volume 21, Wiesbaden 1868, page 324
- ↑ Gijsbertus van der Zanden: On the synonymy of Palearctic species of the Megachilidae family (Insecta, Hymenoptera; Apoidea). In: Linz biological contributions. Volume 27, Issue 1, Linz 1995, pp. 427–434 ( PDF on ZOBODAT ).