Oberea euphorbiae
| Oberea euphorbiae | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Oberea euphorbiae , image rotated by 90 ° |
||||||||||||
| Systematics | ||||||||||||
|
||||||||||||
| Scientific name | ||||||||||||
| Oberea euphorbiae | ||||||||||||
| ( Germar , 1813) |
Oberea euphorbiae is a beetle from the family of the longhorn beetle and the subfamily Lamiinae . The part of the name "euphorbiae" indicates that the beetledevelopsin Euphorbia species .
Characteristics of the beetle
The long and narrow beetle has a cylindrical shape. It reaches a length of 13 to 19 millimeters.
The head points downwards perpendicular to the body axis. On the front and on the vertex it is more or less extensively colored red. The end part of the jaw probe is pointed. The upper lip is dull and without long hair on the front edge (Fig. 2). The mandibles are long and slender, their base far from the anterior edge of the compound eyes . The eyes are very thin and small. The antennae are dark, eleven-limbed, strong, in the male almost body-long, in the female they protrude above the middle of the elytra. The pronotum is widest in the middle, it is slightly less narrowed towards the back than towards the front.
The elytra are irregularly dotted , coarser at the base, finer and finer towards the end than in Oberea erythrocephala . The yellow spot on the front side is missing. In the end, each wing cover is rounded for itself.
The legs are short, the extended hind legs do not reach the rear edge of the second abdominal segment. The legs are reddish yellow, as are the sides of the abdomen (Fig. 1) and the underside of the last abdomen segment. The tarsi appear to be four-limbed (pseudotetrameric) because the fourth limb is very small and hidden between the lobes of the third limb. The claws are serrated at the base.
biology
The larva develops in the stems of various milkweed plants , in particular Euphorbia palustris . The stems are killed by the larvae feeding. The beetle needs a year to develop. The adult beetle appears in Central Europe in May and June.
distribution
The center of the distribution area of the thermophilic species is in Central and Southeastern Europe. The species is rarely found in Central Europe. The western border of the distribution area runs from Italy through Switzerland to Germany. To the east, the distribution area extends into the Caucasus.
literature
- Heinz joy, Karl Wilhelm Harde, Gustav Adolf Lohse (ed.): The beetles of Central Europe . tape 9 . Cerambycidae Chrysomelidae . Spektrum Akademischer Verlag, Munich 1999, ISBN 3-8274-0683-8 (first edition: Goecke & Evers, Krefeld 1966).
- Adolf Horion : Faunistics of the Central European Beetles, Bd. XII . Überlingen-Bodensee 1974.
Web links
- ↑ a b Oberea euphorbiae in Fauna Europaea. Retrieved December 24, 2010
- ↑ Cerambycidae of the West Palaearctic region
