Narrow-winged fur bee oil beetle
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Narrow-winged fur bee oil beetle ( Sitaris muralis ) |
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| Sitaris muralis | ||||||||||||
| ( Forster , 1771) |
The Schmalflüglige anthophora oil beetle ( Sitaris muralis ) is a beetle from the family of blister beetles (Meloidae).
features
The beetles grow to be 7 to 15 millimeters in size, making them a relatively small, inconspicuous species within the oil beetle family. They have a black head with a yellowish wing root. The wings are shorter than the abdomen and at the end they gape strongly apart.
development
Like many oil beetles, the beetles have a complicated life cycle and develop parasitically in the nests of fur bees from the two genera Anthophora and Amegilla , but also mason bees . The larvae develop via hypermetamorphosis , so the various larval stages are designed differently. The females lay their egg packages at the exit holes of the nesting tubes of fur bees in mid / late August. The larvae hatch from the end of September to the beginning of October, but initially remain motionless at the place of birth under the protection of the sticky egg shells and overwinter. As with Meloe, this first stage is developed as a three-clawed claw ( triungulinus ). In April, the larvae become active, they spread on the walls of the egress hole and fall on the hatching bees when they break the (slightly behind) nest seal and cling to them ( phoresy ). Since the drones hatch first, the larvae have to switch to the females in the copula of the fur bees in order to get to further nesting chambers. There they first eat the bee egg and then float on the egg shell on the pollen-nectar pulp, which is used as further food for the subsequent larval stages. Sitaris muralis overwinters as a pseudo-pupa and does not go through the actual pupal stage until July. The adults hatch in August.
Occurrence
The narrow-winged fur bee oil beetle is mainly found in the Mediterranean region of North Africa ( Morocco , Algeria , Tunisia , Libya ) and southern Europe, but is also found in Western and Central Europe including Germany and Austria. In Central Europe, the species occurs only sporadically and has its distribution center within Germany in the southwest (Baden, Hesse) and has recently also been found in Westphalia.
Danger
The narrow-winged fur bee oil beetle is classified as "Endangered" in Germany, especially due to the loss of the habitat of its hosts, the fur bees.
Web links
swell
Individual evidence
- ^ Sitaris (Sitaris) muralis (Forster 1771). Fauna Europaea, Version 1.3, April 19, 2007 , accessed on November 14, 2009 .
- ^ Marco A. Bologna: Coleoptera, Meloidae . In: Fauna d'Italia . 1st edition. tape 28 . Calderini, Bologna 1991, ISBN 88-7019-523-6 (Italian).
- ↑ J. Lückmann: Sitaris muralis (FOERSTER, 1771) - new for Lower Saxony and the state of the current distribution of the species in Germany (Coleoptera: Meloidae). Entomol. Z., 116 (3): 107-112, 2006
- ↑ K. Hannig, A. Pennekamp, Th. Zegula: First record of Sitaris muralis (FOERSTER, 1771) for Westphalia (Coleoptera, Meloidae). Mitt. Work acc. Rhine. Coleopterologists (Bonn) 17, 2007
- ↑ Federal Agency for Nature Conservation (Ed.): Red List of Endangered Animals in Germany . Landwirtschaftsverlag, Münster 1998, ISBN 3-89624-110-9 , p. 212 .