Chrysolina shuyongi Ge et Daccordi

Ge, Si-Qin, Daccordi, Mauro, Li, Wen-Zhu & Yang, Xing-Ke, 2011, Seven new species of the genus Chrysolina Motschulsky from China (Coleoptera: Chrysomelidae: Chrysomelinae), Zootaxa 2736, pp. 31-43 : 40

Chrysolina shuyongi Ge et Daccordi , sp. nov.

( Figs. 6 A–E)

Diagnosis. Metallic bronze; hind wing absent; pronotum without callus; inner edge of epipleura with 2 bristles; pygidium without longitudinal depression medially.

Descriptions (based on holotype): Colour: Metallic bronze, compound eyes dark, two basal segments of antennae, last segment of maxillary palpi, claws reddish brown.

Body length: 4.96 mm; body width: 2.56 mm; body elongate-ovoid, small ( Fig. 6 A); hind wing absent.

Head: Clypeus with sparse pubescence, with sparse and small punctures; frons smooth, with sparse and small punctures; coronal suture and frontal suture present; vertex with sparse and dense punctures; compound eyes oblong, dorso-ventral eye length: 0.24 mm, interocular distance: 0.88 mm; distance from antennal insertion to eye 0.16 mm; distance from antennal insertion to clypeus 0.09 mm; mandible with two denticles, outer surface with sparse pubescence, small and sparse punctures; third segment of maxillary palpi shorter than fourth, apex of fourth segment truncate; antennae with basal segments narrow, widening from segments 6 to 11, antennal segment (1–11) lengths (in millimeter): 0.32: 0.16: 0.24: 0.16: 0.16: 0.16: 0.16: 0.16: 0.16: 0.20: 0.32 ( Fig. 6 B).

Pronotum: Length: 1.28 mm; width: 2.40 mm; central disc with small and sparse punctures, as same as those of head; without callus; punctures lateral to disc and basal part with moderate and dense punctures.

Scutellum : Sub-triangular, with sparse punctures.

Elytra: suture length: 3.76 mm; width of elytra: 3.28 mm. Elytron with punctures forming 4 regular double striae, sutural stria present, punctures as strong as those of side of pronotum; interspaces of elytral striae with small and sparse punctures, with horizontal wrinkles; inner edge of epipleura with 2 bristles.

Legs: Femora and tibiae with sparse and small punctures, sparse pubescence; tarsomere 1 of male protarsus enlarged; hind tarsi entirely pubescent beneath, relative lengths of hind tarsomeres: 5>1>3>2, tarsomere 5 not ventrally toothed ( Fig. 6 E).

Venter: Hypomera without punctures; middle part of intercoxal prosternal process more than half width of apex; prosternum with sparse and small punctures, truncate behind, not emarginate behind; mesoventrite shorter than prosternum between coxae; metaventrite shorter than prosternum, with dense and moderate punctures; mesepisternum, mesepimeron and metepisternum without punctures; abdomen with moderate and dense punctures; pygidium with arcuate apex, without longitudinal depression medially.

Median lobe of aedeagus ( Figs. 6 C–D): Basal part narrower than apex, curved in lateral view, flagellum slen- der.

Female: Unknown.

Remarks. Members of this new species are quite different from any other species of Chrysolina in the morphology of the aedeagus.

Type material. Holotype: male, China: Yunnan: Weixi, Lidiping, 3100 m, 14 August 1984, leg. Shu-Yong Wang ( IZAS).

Figures

FIGURE 6. Chrysolina shuyongi, sp. nov. A. Habitus; B. Left antenna (male); C. Aedeagus, lateral view; D. Aedeagus apex, dorsal view; E. Tarsus, male; scale bar: 1.0 mm.