Phaedon igori 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 : 20

Phaedon igori Daccordi & Ge , sp. nov. ( Figs 14–15 )

Description. Body length 2.0– 2.4 mm, width 1.6–1.8 mm. Body hemisferic, rather convex, hind wings absent. Colour. Hooker’s Green to cobalt blue; apex of tibiae, tarsi, antennomeres 1–3 and mandible mahogany red.

Head. Vertex and frons with sparse and small punctures. Antennae shown as Figs 15A, 15B .

Thorax and abdomen. Pronotum length 0.5–0.6 mm, width 1.2–1.4 mm; central disc with very sparse punctures; lateral side slightly denser. Scutellum subtriangular and impunctate. Elytra length 1.7–2.2 mm; with regular striae, punctures of striae sparse and fine, interspace with very few fine punctures. Underside. Hypomeron with dense punctures similar to prosternum; prosternal process wide, with some punctures along the sides, and wrinkled in the middle; metaventrite and abdomen with sparse punctures; antero-lateral plate of metaventrite large and impunctate.

Aedeagus. Shown as Figs 15C, 15D .

Spermatheca. Shown as Fig. 15E .

Material examined. Holotype male, China, Sichuan, E. of Danba, E. of Suopo (30°52'54"N, 102°03'05"E – 30°52' 46"N, 102°03'34"E; elev. 4 560 – 4 780 m, 14 August 2004, coll. Belousov and Kabak ( ZIN).

Paratypes 2 female, same data as holotype (1 female in IZCAS, 1 female in MDC) .

Etymology. The speces is named for the Russian Entomologist, Prof. Igor Lopatin, who passed away in 2012.

Remarks. The new species can be distinguished from the other species of the genus by the following characters: body hemisferic, mouth part narrow, slender, rostriform, elytra striae with sparse and fine punctures.

Distribution. China (Sichuan).

Figures

Fig. 14. Phaedon igori Daccordi & Ge, sp. nov., SEM. A. Habitus, dorsal view. B. Habitus, ventral view. C. Head and thorax, dorsal view. D. Head and thorax, ventral view. E. Base of elytra, showing punctures. F. Onychium, lateral view. Scale bars: A–B, E= 0.5mm; C–D=0.2mm; F =0.05mm.

Fig. 15. Phaedon igori 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.