Phaedon concinnus Stephens, 1834

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 : 14

Phaedon concinnus Stephens, 1834 ( Fig. 9 )

Phaedon concinnus Stephens, 1834: 334 .

Description. Body length 4.2–4.3 mm, width 2.3–2.4 mm. Body elongate, rather convex, hind wings present. Colour greenish blue, often with golden, purplish or violaceus; apex of abdomen usually entirely black.

Head. With coarse and dense punctures. Antennae shown as Figs 9A, 9B .

Thorax and abdomen. Pronotum length 0.9 mm, width 1.7 mm; disc with coarse and dense punctures. Scutellum triangular, impunctate. Elytra length 3.3 mm; striae regular, interspace with fine and dense punctures; interspace ninth and tenth striae equal in length, punctures of lateral stria 4–5 times than their diameter. Epipleuron with fine and sparse punctures. Underside. Prosternal process narrow, slightly widened apically. Hypomeron, mesoventriate, metaventrate and abdomen with dense and coarse punctures. Antero-lateral plate of metaventrite large and impunctate.

Aedeagus. Shown as Figs 9C, 9D .

Spermatheca. Shown as Fig. 9E .

Material examined. 1 male, Russia, Dzakhanskij, tzs-Gol, 10 km (elev. 1 300 m) ( MDC) .

Remarks. The species is similar to P. armoraciae , but it can be distinguished from the latter by following: elytra strongly shining, usually greenish-blue, often with golden, purplish or violaceus reflex; apex of abdomen usually entirely black; punctures of lateral stria 4–5 times than their diameter. We add this species here because it occurs in border of China, and it probably occurs in China too.

Distribution. Russia (border of China, near Xinjiang), Europe.

Figures

Fig. 9. Phaedon concinus Stephens, 1834. A. Antenna, male. B. Antenna, female. C. Aedeagus, lateral view. D. Aedeagus, dorsal view. E. Spermatheca. Scale bars:A–B=0.5mm; C–D=0.2mm; E=0.1mm.