Lepturobosca virens
Sealing Haired neck Bock on Meadowsweet
The sealing Hairy neck Bock, also Green Longhorn ( Lepturobosca virens, formerly Leptura virens) is a beetle of the family of longhorn beetle and the subfamily of the narrow bucks.
The greenish- gray coloring of its dense pubescence owes the beetle the style name virens (Latin ), founding ' its scientific name as well as the German name "Green Longhorn ". The genus name refers to the genus Lepturobosca Leptura was anticipated in the earlier Lepturobosca as a subgenus, and contains βόσκω, Bosko, 'I pasture ' ( ancient Greek ).
Characteristics of the beetle
The 14 to 22 mm long beetle has the typical long to verschmälernde backwards and slightly curved figure of narrow bucks. It's all green or gray long haired, black body color appears at most of the joints the outer skeleton.
The almost wrinkled head dotted with brown mouthparts is inclined obliquely downwards and forwards. The typical long -horned beetles sensors are turned in on top of the head before the Ausrandung the eyes. The first antennal segment is very strong, the second almost a ring shortly. The remaining nine sensor members are stretched and yellow to the base. The sensor thus appear curled striking. You can reach the last quarter of the elytra. Between the Einlenkungsstellen the sensor head is deeply longitudinally impressed. The kidney-shaped compound eyes protrude beyond the sides of the head strong. Their distance to the upper jaw ( cheek ) wide. Temples, however, are not formed, the head narrows immediately behind the eyes to the neck.
The pronotum is hardly longer than broad, strongly constricted in front, the bottom of the front chest between the head and front hips are not. The base of the pronotum is only slightly constricted, the hind angles are not drawn out long. The pronotum is coarsely dotted with small transverse wrinkles. Behind the leading edge and the trailing edge before he is pushed transversely, also carries a deep and broad central furrow, but the hair is not very conspicuous ( Fig. 1).
The elytra are densely punctured and wrinkled. You narrow down behind the broad shoulders fairly uniform, stronger in the male than in the female. The tips of the elytra are individually rounded with a slight outer corner. The labels stands out with a particularly dense pubescence.
The front hips come down in front of peg- shaped. The tarsi are apparently four members since the small fourth generation is hiding in the bulge of the third member.
Biology
The larvae of the species develop in conifers, mainly Abies, Pinus sylvestris and Picea. The bugs are in Central Europe at higher elevations from June to August on flowers ( Umbelliferae, Compositae, Sambucus racemosa, Veratrum album) or to find the brood trees. The stenotopic species inhabits mainly forests of the montane to subalpine zone.
In Northern Europe, the larva develops in fallen or felled, decomposing trunks and stumps. The feeding tunnels are created in the deeper sapwood. The outer soft and decaying sapwood and the heartwood are shunned. Pupation takes place in late May and June in the sapwood. The adults appear in late June and in July.
Dissemination
The species occurs in Europe in almost all countries. Messages are missing in the west of Portugal, the Benelux countries, the British Isles and Denmark, southeast of the way from Croatia, Greece, Macedonia and Albania and European Turkey is not reported. From Moldova there is no message.
The distribution area can be divided into a northern and a southern area decompose complex. The northern area extends from Scandinavia east to Siberia, Mongolia and Manchuria. The southern area is located around the Pyrenees, Alps, Balkans and Carpathians.