Chrysolina cuiae 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 : 38-40

Chrysolina cuiae Ge et Daccordi , sp. nov

( Figs. 5 A–E)

Diagnosis. Metallic bronze; hind wing absent; pronotum without callus; elytron with punctures forming irregular single striae; inner edge of epipleura with 1/3 length bristles; pygidium without longitudinal depression medially.

Description (based on holotype): Colour: Metallic bronze, basal five segments of antennae, claws reddish brown.

Body length: 8.00 mm; body width: 4.16 mm.

Body elongate-ovoid ( Fig. 5 A), large; convex in lateral view; hing wing absent.

Head: Clypeus with sparse and very small punctures, sparse pubescence; frons smooth, with sparse and very small puncture; coronal suture present, frontal suture very short; vertex with sparse and very small punctures; compound eyes elliptic, dorso-ventral eye length: 0.32 mm, interocular distance: 1.44 mm; distance from antennal insertion to eye 0.19 mm; distance from antennal insertion to clypeus 0.08 mm; mandible with two denticles; outer surface with sparse and small punctures, with sparse pubescence; third segment of maxillary palpi shorter than fourth, apex of fourth segment truncate; antennae with basal segments narrow, widening from segments 6 to 11 segments, antennal segment 1–11 lengths in millimeter: 0.48: 0.24: 0.32: 0.24: 0.32: 0.32: 0.32: 0.32: 0.32: 0.32: 0.72 ( Fig. 5 B).

Pronotum: Length: 2.24 mm; width: 3.84 mm; without setigerous punctures on sides of anterior and posterior angles; central disc with sparse and very small punctures, similar to those of head, but anterior and posterior part with some scattered moderate punctures; without callus; with dense punctures in depression near lateral side, punctures lateral to disc large and dense.

Scutellum : Sub-triangular, with sparse punctures.

Elytra: Suture length: 5.60 mm; width of elytra: 4.80 mm; elytron with punctures forming irregular single striae, sutural striae present, punctures smaller than those of side of pronotum; interspaces of elytra striae convex, with sparse and small punctures; inner edge of epipleura with 1/3 length bristles.

Legs: Femora and tibiae with dense, moderate punctures, dense 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. 5 E).

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

Median lobe of aedeagus ( Figs. 5 C–D): Basal part slightly wider than apex; curved in lateral view, flagellum slender.

Remarks. Members of this new species differ from any other known species of Chrysolina in the morphology of the aedeagus.

Type material. Holotype: male, Xizang: Gengtuofang, 1800 m, 2 June 1989, leg. Zong-Cun Li ( IZAS).

Distribution. Xizang (Fig. 8).

Etymology. The new species is named for our colleague, Madam Jun-Zhi Cui of IZAS, Beijing, China, for her assistance with research on Chrysomelidae .

Figures

FIGURE 5. Chrysolina cuiae, 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.