Neocrepidodera

Baselga, Andrés, 2006, The Northeastern Palaearctic light coloured Neocrepidodera Heikertinger, 1911 (Coleoptera: Chrysomelidae), with description of a new species, Zootaxa 1246, pp. 55-68 : 66-67

Key to the Northeastern Palaearctic light coloured Neocrepidodera

1. Frontal tubercles not distinctly delimited posteriad, supracallinal sulcus effaced. First antennomere distinctly shorter than second and third together. Aedeagus more or less subtriangular or pointed at apex in ventral view ( Figs. 8–12 ). Spermathecal receptacle and pump not delimited, ductus short, running close to receptacle ( Figs. 14–18 )........ 2

­ Frontal tubercles distinctly delimited posteriad, supracallinal sulcus shallow but distinct. First antennomere long and robust, almost as long as second and third together. Aedeagus extremely short, rounded at apex in ventral view ( Fig. 7 ). Spermathecal receptacle and pump clearly delimited, ductus long, making a wide loop away from the receptacle ( Fig. 13 ) .......................................................................... N. sibirica (Pic)

2(1).Elytral striae irregular, punctures arranged in confused double or triple rows........... 3

­ Elytral striae completely or almost completely regular ................................................ 4

3(2).Body length more than 4.5 mm. Discal punctures of pronotum fine ( Fig. 2 ). Aedeagus strongly constricted anteapically in ventral view ( Fig. 8 ). Vaginal palpi long and slen­ der ( Fig. 14 ) ................................................................... N. obscuritarsis (Motschulsky)

­ Body length less than 4.5 mm. Discal punctures of pronotum coarse ( Fig. 3 ). Aedeagus almost parallel sided ( Fig. 9 ). Vaginal palpi extremely short and narrow ( Fig. 15 ). ....................................................................................... N. interpunctata (Motschulsky)

4(2).Anterolateral callosity of pronotum distinctly asymmetrical, rounded anteriorly and angulose posteriorly ( Fig. 4 ). Apex of aedeagus strongly deflexed ventrad in lateral view ( Fig. 10 ). Vaginal palpi relatively short and thin ( Fig. 16 ) .................................... .................................................................................................. N. konstantinovi sp. nov.

­ Anterolateral callosity of pronotum almost symmetrical, rounded both anteriorly and posteriorly ( Figs. 5–6 ). Apex of edeagus feebly deflexed ventrad in lateral view ( Fig. 11–12 ). Vaginal palpi relatively long and broad ( Fig. 17–18 ) ...................................... 5

5(4).Aedeagus apically subtriangular shaped in ventral view, with denticle poorly developed ( Fig. 11 ) ...................................................................... N. sublaevis (Motschulsky)

­ Aedeagus produced apically into a very acute point in ventral view ( Fig. 12 ). ............. ....................................................................................... N. motschulskii (Konstantinov)

Figures

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.

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.