27.01. Xylocleptes bispinus (Duftschmid, 1825)
Presence
E: AU BE BU CR CZ DE FR GB GE GR HU IT MC NL PL RO SK SL SP ST SZ UK YU
N: AG EG LB MO TU
A: TR
Figure 110: Xylocleptes bispinus (male 2x, female 2x), dorsal, lateral (Photo: Maja Jurc)
Older catalogs and keys – citations of name
Siegel 1866: Bostrychus bispinus Rtzb.; Grüne 1979: Xylocleptes bispinus (Duftschmid, 1825); Freude, Harde, Lohse 1981: Xylocleptes bispinus Duftschmid; Pfeffer & Knížek 1993: X. bispinus (Duftschmid, 1825); Pfeffer 1995: X. bispinus (Duftschmid, 1825).
Figure 111: Xylocleptes bispinus, distribution map according to historical and recent data
Ecology and presence in Slovenia
The species was originally found in southern Europe and then spread to the southern part of central and eastern Europe, northern Africa and Turkey. It is common in Slovenia, with numerous older and more recent records in all Slovene regions except Prekmurje (Figure 111). The host is the genus Clematis (Clematis vitalba, C. orientalis). In Slovenia, only C. vitalba is known as a host, but records in traps with pheromones for monitoring entomofauna are also frequent (Theysohn® black flat slotted trap – tThe, Witasek black cross trap – tWit with pheromones as Linoprax – phLino, Galloprotect 2D pheromone – phGaP2). The species is polygamous. Adult length is 2.1-3.2 mm. Sexual dimorphism is well pronounced, with the male having an elongated apex with two denticles on each apical margin, similar to Pityogenes bidentatus. In females, the two denticles are absent and there are three slightly raised interstices / ridges with hairs on the posterior part of the elytra (Figure 110).