Smaragdina oblongum Lopatin

Lopatin, I. K. & Konstantinov, A. S., 2009, New genera and species of leaf beetles (Coleoptera: Chrysomelidae) from China and South Korea, Zootaxa 2083 (1), pp. 1-18 : 3

Smaragdina oblongum Lopatin , new species

( Figs 3–6 )

Holotype male, China, Yunnan, env. of Lijang, Tiger Leaping Gorge , 2000m, N 27° 04'53" E 100°04'31", 25.05.2002, A. Konstantinov & M. Volkovitsh leg. ( IZAS) . Paratypes (8 specimens) males and females, the same label as holotype (6 USNM, 2 ZMAS) .

Body length 5.4 mm, width 2.5 mm. Body elongate, parallel-sided, shiny. Pronotum, elytra, four apical antennomeres, and femur except apex, orange. Head, antennomeres five to 11, scutellum, ventral side of body, tibiae, and tarsi black. Labrum shiny black.

Frons between eyes covered with deep wrinkled punctures, which deepen and become sparser ventrally. Vertex covered with tiny, sparse punctures. Clypeus deeply evenly incised. Labrum convex, smooth, with setiferous pores on sides and slightly convex anterior margin. Antennomere three shorter than the rest, wider than long. Antennomere four weakly transverse. Antennomeres five to ten strongly transverse.

Pronotum wide, 1.92 times wider than long. Sides evenly rounded. Posterior corners widely rounded. Pronotum surface smooth, shiny, slightly convex in middle, strongly convex on sides, covered with sparse punctures, which are denser at middle of anterior margin. Transverse impression deep across scutellum. Basal margin protruding posteriorly. Scutellum raised with rounded apex, covered with deep punctures in basal half.

Elytra 2.9 times longer than pronotum and 1.16 times longer than wide, narrowed beyond humeral calli and widening apically, narrowly rounded at apex. Elytral surface covered with shallow punctures, their diameter smaller than distance between them. Lateral sides with row of short hairs.

Protibia curved, with dense setae ventrally. Protarsus wide. Claw with small denticle. Abdomen covered with long, white thin hairs and dense punctures. Last abdominal ventrite with short, transverse, bare stripe in middle of apical margin. Aedeagus as in Figs 3–6 .

Comments: Smaragdina oblongum is close to S. peplopteroides (Weise) , from which it can be differentiated by its smaller body, dorsum orange in color ( S. peplopteroides has elytra either completely dark with light apices or with large elongate markings along suture), dorsal part of vertex sparsely covered with punctures (vertex of S. peplopteroides densely covered with punctures throughout), and the shape of the aedeagus ( Figs 3–10 ).

Etymology: This species name refers to its elongate body.

Figures

FIGURES 3–6. Smaragdina oblongum, aedeagus. 3, ventral view; 4, dorsal view; 5, lateral view; 6, apex.