Phaedon geminatus Daccordi & Ge, 2015

Ge, Si-Qin, Daccordi, Mauro, Ren, Jing & Yang, Xing-Ke, 2015, Revision of Phaedon Latreille from China (Coleoptera: Chrysomelidae), Zoological Systematics 40 (1), pp. 1-30 : 17-18

Phaedon geminatus Daccordi & Ge , sp. nov. ( Fig. 11 )

Description. Body length 3.1 mm, width 2.3 mm. Body ellipsoid, rather convex, hind wings absent. Colour hooker’s green to cobalt blue.

Head. Frons and vertex with sparse and fine punctures. Antennae shown as Figs 11A, 11B .

Thorax and abdomen. Pronotum length 0.9 mm, width 1.8 mm; central disc with very thin and sparse punctures, lateral sides more denser. Scutellum sub-triangular, smooth and impunctate. Elytra length 2.4 mm; with double striae, interspace with very fine and sparse punctures. Epipleura glazed with very few punctures. Underside. Prosternal process wide, apex truncate. Hypomeron, mesoventrite and metaventrite, abdomen with coarse and dense punctures, lateral sides of prosternum, mesoventrite, metaventrite and first segment of abdomen. Antero-lateral plate of metaventrite small and impunctate.

© Zoological Systematics, 40(1): 1–30 Aedeagus. Shown as Figs 11C, 11D .

Spermatheca. Shown as Fig. 11E .

Material examined. Holotype male, Sichuan, Dofu, Songlinkou (elev. 3 900 m), 12 July 1983, coll. Shu-Yong Wang ( IZCAS) . Paratypes: 1 female, same data as holotype ( IZCAS) ; 1 male, N. Sichuan, W. Songpingou (elev. 3 850 m), 17 August 2007, coll. Kabak ( MDC) .

Etymology. The specific name " geminatus " means elytra with double striae.

Remarks. The new species is similar to Phaedon prosternalis , but it can be distinguished from the latter by the elytra with double striae.

Distribution. China (Sichuan).

Figures

Fig. 11. Phaedon geminatus Daccordi & Ge, sp. nov. A. Antenna, male. B. Antenna, female. C. Aedeagus, dorsal view. D. Aedeagus, lateral view. E. Spermatheca. Scale bars: A–B=0.5mm; C–D=0.2mm; E=0.1mm.