Polydrusus longus ( Stierlin, 1884 )

Christoph Germann, 2018, A review of Conocetus Desbrochers des Loges, 1875, subgenus of Polydrusus Germar, 1817 (Coleoptera, Curculionidae, Entiminae), European Journal of Taxonomy 392, pp. 1-39 : 34

Polydrusus longus ( Stierlin, 1884)

Fig. 11

Type locality

MOROCCO: Tangiers.

Remarks

Unfortunately no specimen of this seemingly very characteristic species, based on its narrow and very elongate elytra (length: 5 mm, width: 1 mm), which are 3 times as long as wide ( Stierlin 1884), could be examined in the present review. Stierlin (1884) compared P. longus with P. bardus (whereas with present knowledge, P. crinipes sp. nov. was meant). However, the distribution of P. longus , which seems to be restricted to the westernmost part of the Mediterranean basin, in comparison with the eastern focus of all other species of the subgenus, is at least surprising. One specimen from the BMNH was determined by L. Magnano as “ Polydrusus (Conocetus) longus Stl. ”, but belongs instead to Polydrusus (Chomatocryptus) xanthopus Gyllenhal, 1834 . As the placement in Conocetus cannot be verified, and is doubtful based on the deviant distribution and the very elongate habitus, the species is preliminarily treated as incertae sedis.

Figures

Fig. 11. Map showing records of five species of Polydrusus (Conocetus) and of P. (incertae sedis) longus (Stierlin, 1884) (map copyright: Google).