Phaedon armoraciae ( Linnaeus, 1758 )

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 : 8-11

Phaedon armoraciae ( Linnaeus, 1758) ( Fig. 6 )

Chrysomela armoraciae Linnaeus, 1758: 369 .

Phaedon armoraciae: Weise, 1884: 547 .

Description. Body length 4.2–4.5 mm, width 2.3–2.7 mm. Body elongate, rather convex, hind wings present. Colour dark blue, tarsi and last segment of abdomen yellowish brown.

© Zoological Systematics, 40(1): 1–30

© Zoological Systematics, 40(1): 1–30

Head. With coarse and dense punctures. Antennae shown as Figs 6A, 6B .

Thorax and abdomen. Pronotum length 0.9 mm, width 1.8 mm; disc with coarse and dense punctures. Scutellum triangular, impunctate. Elytra length 3.4 mm; striae regular, interspace with fine and dense punctures; interspace ninth and tenth striae equal in length; 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.

© Zoological Systematics, 40(1): 1–30

Aedeagus. Shown as Figs 6E, 6F .

Spermatheca. Shown as Fig. 6G .

Material examined. Lectotype male, labelled: armoraciae / No. 16 / Lectotype / Lectotype, Chrysomela armoraciae Linné, 1758 , male, Designated, S. GE, 2004 / Phaedon armoraciae (L.), Det. S. GE, 2004. Paralectotypes: 2 males, 1 female, same data as lectotype ( LSUK) . Other materials: 7 males and 5 females, Beijing, Badaling (elev. 700m), 29 June 1962, coll. Shu-Yong Wang ( IZCAS) ; 1 male, Xinjiang, Altai (elev. 800m), 23 August 1960, coll. Shu-Yong Wang ( IZCAS) .

Remarks. The species can be distinguished from other species of the genus by the following characters: dorsum without markings; hind wing present; third antennal segment shorter than second; elytral interstice 9 and 10 equal in width; epipleuron broadened basally, with punctures.

Distribution. China (Beijing, Hebei, Xinjiang), Russia (Siberia), Central Asia, Europe.

Host plant. Armoracia sp.

Figures

Fig. 6. Phaedon amoraciae (Linnaeus, 1758), from Daccordi and Lavarini (1993). A. Antenna, male. B. Antenna, female. C. Tarsus, dorsal view, male. D. Tarsus, dorsal view, female. E. Aedeagus, dorsal view. F. Aedeagus, lateral view. G. Spermatheca. Scale bars: A–B, E–F=0.5mm; C–D, G=0.2mm.