Neocrepidodera sibirica ( Pic, 1909 )

Baselga, Andrés, 2006, The Northeastern Palaearctic light coloured Neocrepidodera Heikertinger, 1911 (Coleoptera: Chrysomelidae), with description of a new species, Zootaxa 1246, pp. 55-68 : 62-64

Neocrepidodera sibirica ( Pic, 1909)

( Figs. 1 , 7 , 13 )

Ochrosis sibirica Pic, 1909: 155

Neocrepidodera sibirica: Heikertinger, 1911: 34

Material examined

RUSSIA: Primorskiy Kray, Kraskina, 13–16 July 1992, 1 ex. (Boukal leg., DOBC); Primorskiy Kray, Kraskino, Azajsanovka, 13–16 July 1992, 2 ex. (Snizek leg., BERC, DOBC); Primorskiy Kray, Ussuriiskiy National Park, 6 July 1985, 1 ex. (Pisanenko leg.); 27 July 1985, 1 ex. (Pisanenko leg.).

Diagnosis

Length = 2.8–3.2 mm. Head: frontal tubercles distinctly delimited posteriad, supracallinal sulcus shallow but distinct. First antennomere long and robust, almost as long as second and third together. Pronotum: constricted basally, narrowly margined. Anterolateral callosity obtuse–angled, well developed and slightly asymmetrical. Surface covered with minute punctures on disc and basal region ( Fig. 1 ). Elytra: punctation seriate but striae partially irregular because some punctures are duplicated or slightly disordered. Punctures shallow, interstriae flat and wider than striae. Base of sixth elytral stria not impressed, as deep as the other striae. Aedeagus: very small, constricted anteapically and rounded at apex in ventral view ( Fig. 7 ). Vaginal palpus: almost straight and tapering to the apex, basal membranous region different from all other species here considered in having only one branch ( Fig. 13 a). Spermatheca: very different from all other species here considered. Spermathecal receptacle and pump clearly delimited, ductus long, making a wide loop away from the receptacle ( Fig. 13 b).

Distribution

Far East, Korea, Japan.

Figures

FIGURES 1 – 6. Pronota of Neocrepidodera spp. Circle and oval represent schematic samples of discal and antebasal punctation, respectively. (1) N. sibirica. (2) N. obscuritarsis. (3) N. interpunctata. (4) N. konstantinovi, paratype. (5) N. sublaevis, neotype. (6) N. motschulskii. Scale bar: 0.5 mm.

FIGURES 7 – 12. Median lobe of aedeagi of Neocrepidodera spp., ventral and lateral view. (7) N. sibirica. (8) N. obscuritarsis. (9) N. interpunctata. (10) N. konstantinovi, paratype. (11) N. sublaevis, neotype. (12) N. motschulskii. Scale bar: 0.5 mm.

FIGURES 13 – 18. Female genitalia of Neocrepidodera spp.: (a) vaginal palpi, (b) spermatheca. (13) N. sibirica. (14) N. obscuritarsis. (15) N. interpunctata. (16) N. konstantinovi, paratype. (17) N. sublaevis. (18) N. motschulskii. Scale bar: 0.5 mm.