Julodis onopordi

Julodis onopordi

Julodis onopordi is a beetle in the family Buprestidae and the subfamily Julodinae. The genus Julodis is represented worldwide with 77 species, six of which are to be found in Europe. The type Julodis onopordi is represented in Europe with the subspecies Julodis onopordi fidelissima and Julodis onopordi Sommeri.

Remarks about the name

The beetle was first described in 1783 under the name Buprestis onopordi of Fabricius. After a brief characterization of the physical characteristics of Fabricius leads to: habitat in Hispaniae Onopordine (Latin lives on Onopordon in Spain) and is the type the style name onopórdi (of Onopordon, the Scottish Thistle, stating that the beetles to be found there is ).

Eschscholtz announced in 1829, the genus Buprestis different genera. The types without labels whose chest is hairy flat and the body, he took to the genus Jalodis ( Julodis ) together. This includes onopordi also the type. After Schenkling the generic name Julodis would correctly Iulódis hot, is AltGr. ιουλώδης ( iulódes ) derived and means similar to Iulus, centipede. Mannerheim reported, however, that Eschscholtz changed even handwritten name Julodis in the Mannerheim presented edition of his Atlas Entomological Jalodis. However, Mannerheim interpreted this change as a mistake of Eschscholtz and explains the name Julodis with AltGr. ιόλος ( Iolo, fur ), in reference to said also of Eschscholtz generic feature of the strong pubescence of the species of the genus.

Body of the beetle

The elongated, round in cross-section body is back pointed. The beetle is very hairy and is about 25 millimeters long.

The sensors are elfgliedrig the last seven limbs are cut inward. The nearly square upper lip is cut in front, rounded their corners. The strong upper jaw are slightly bent and carry in a small, blunt tooth. The buttons are pine four tier, the extended end link is ovoid and truncated. The labial palpi are tripartite, the end link conical and truncated.

The pronotum is slightly wider than long, at the base at the widest. To elytra seam down it is extended triangular. He is dotted irregularly deep.

The elytra are punctured tight. Each wing cover has four gray haired longitudinal strips which are interrupted by larger, deeper points. The scutellum is formed again.

The wide tarsi are all five-membered.

Way of life

The eggs are greenish white at first and later yellowish white. The females lay eggs without any particular provision on the ground. The larvae of the first stage have the typical shape of the jewel beetle, but the abdomen is very short. The strong upper jaw and the dense pubescence of the larvae allow them to dig in without any trouble. They are polyphagous and feed in the soil distinct roots of herbs, bushes or even trees.

Dissemination

From the way Julodis onopordi the nominate Julodis onopordi onopordi is limited to North Africa. In Europe one finds the subspecies Julodis onopordi fidelissima to the Iberian peninsula (in the south and west of Spain and Portugal ), the subspecies Julodis onopordi Sommeri in the north and east of Spain and France. However, the distribution areas of the two subspecies overlap.