Phaedon insolitus Ge & Daccordi, 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 : 20-23

Phaedon insolitus Ge & Daccordi , sp. nov. ( Figs 16–17 )

Description. Body length 2.9 mm, width 1.9 mm. Body ellipsoid, rather convex, hind wings absent. Colour. Hooker’s green to smalt blue; apex of the tibiae, tarsi and the antennomeres 1–3 mahogani red to burnt sienna.

Head. Frons and vertex with dense and fine punctures. Antennae shown as Fig. 17A .

Thorax and abdomen. Pronotum length 0.8 mm, width 1.6 mm; disc with dense and coarse punctures especially in lateral sides ( Fig. 16A ). Scutellum subtriangular and impunctate ( Fig. 16C ). Elytra length 2.3 mm; striae regular, interspace with fine and sparse punctures ( Fig. 16C ). Epipleuron with double range punctures near the inner margin ( Fig. 16E ). Underside. Prosternal process wide, apex truncate. Hypomeron, mesoventrite, metaventrite and abdomen with sparse and fine punctures; Antero-lateral plate of metaventrite small and impunctate ( Figs 16B, 16D, 16E ).

Aedeagus. Shown as Figs 17B, 17C .

Spermatheca. Unknown.

© Zoological Systematics, 40(1): 1–30

© Zoological Systematics, 40(1): 1–30

Material examined. Holotype male, China, NW. Sichuan, between Luhuo-Sanggarmai pass, W. of Luhuo , Alpine region (elev. 4 200–4 300 m), 8–28 June 2004, coll. R. Fabbri ( ZIN). Paratypes 2 male, same data as holotype ( MDC) .

Etymology. The specific name is referring to the strange body shape.

Remarks. The new species can be distinguished from Phaedon igori by the dull surface and dense punctures in pronotum.

Distribution. China (Sichuan).

© Zoological Systematics, 40(1): 1–30

© Zoological Systematics, 40(1): 1–30

Figures

Fig. 16. Phaedon insolitus Daccordi & Ge, sp. nov., SEM. A. Habitus, dorsal view. B. Habitus, ventral view. C. Elytra. D. Head and thorax, ventral view. E. Metaventrite, ventral view. Scale bars: A–B, D=1mm; C, E=0.5mm.

Fig. 17. Phaedon insolitus Daccordi & Ge, sp. nov. A. Antenna, male. B. Aedeagus, dorsal view. C. Aedeagus, lateral view. Scale bars: A=0.5mm; B–C=0.2mm.