Zorochros (Zorochros) meridionalis

Han, Taeman, Park, In Gyun & Park, Haechul, 2015, Two new species of the genus Zorochros (Coleoptera: Elateridae: Negastriinae) from Korea, Zootaxa 3904 (2), pp. 261-269 : 267-268

Key to species of Z. (Z.) meridionalis species group

1 Body large, 3–4 mm long; anterior margin of pronotum strongly arched at middle; tibiae of median and posterior legs arcuate (South Palaearctic region: Europe, North Africa, Turan-Persian subregion)................. Z. (Z.) curtus (Germar 1844)

- Body small, 1.8–2.8 mm long; anterior margin of pronotum weakly or not arched at middle; tibiae of legs not arcuate, simple..................................................................................................... 2

2 Sides of elytra parallel from base to middle in dorsal view, and gradually tapering to apex............................ 3

- Sides of elytra ovate, widest in middle, gradually narrowing to both base and apex (European subregion)......................................................................................... Z. (Z.) pumilio (Kiesenwetter 1858)

3 Pronotum densely granulate on the whole surface, some with smooth median line (European subregion)............................................................................... Z. (Z.) meridionalis (Laporte de Castelnau 1840)

- Pronotum granulate on anterior median part, without median smooth median line................................. 4

4 2nd and 3rd antennomeres subequal ( Fig. 2 D); granules on surface of pronotum more widely spread near anterior margin, forming a triangular granulate area ( Fig. 3 H); prosternum with minute granules on the anteromedian part; scutellum convex ( Fig. 2 D, H) (Turan-Persian subregion: Kazakhstan).................................... Z. (Z.) gurjevae Dolin 1995

- 2nd antennomere 1.2 times longer than 3rd one ( Fig. 2 C); granules on surface of pronotum densely distributed near anterior margin, forming a longitudinal granulate line ( Fig. 3 C, G); prosternum with distinctly and widely granules on the anteromedian part; scutellum flat ( Fig. 2 G) (East Asian subregion: Korea)........................ Z. (Z.) mansusanensis sp. nov.

Figures

FIGURE 2. Antennomeres and scutellum of male specimens. A, E: Z. (Z.) coreanus sp. nov. B, F: Z. (Z.) mesasiaticus Dolin. C, G: Z. (Z.) mansusanensis sp. nov. D, H: Z. (Z.) gurjevae Dolin.

FIGURE 3. Pronotum at dorsal view and granules on the pronotal disc of male specimens. A, E: Z. (Z.) coreanus sp. nov. B, F: Z. (Z.) mesasiaticus Dolin. C, G: Z. (Z.) mansusanensis sp. nov. D, H: Z. (Z.) gurjevae Dolin.