IUCN threat status:

Not evaluated

Comprehensive Description

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Description

Total length = 16.0–17.0 mm (mean = 16.8), width = 5.60–6.13 mm (mean = 5.86); HW = 2.60–2.95 mm (mean = 2.82), EYL = 0.95–1.10 mm (mean = 1.03), ratio Ant3/Ant1 = 1.56–1.72 (mean = 1.64), PL/PW = 0.76–0.84 (mean = 0.81), EL/EW = 1.68–1.91 (mean = 1.79), EL/ PL = 1.37–1.49 (mean = 1.42).  Head and pronotum black with green or coppery metallic luster; elytra black; ventral surface black; mandibles and trochanters dark brown; antennomere 1, femora, tibiae yellow to brown; antennomeres 2–11, palpi and tarsi dark brown to nearly black.  Head with vertex smooth medially, coarsely punctate behind eyes; labrum slightly emarginate at apex; antennomere 1 coniform (Fig. 52). Pronotum with disk smooth, very sparsely punctate along midline in a few specimens; lateral furrow sparsely pubescent and coarsely punctate; medial longitudinal furrow deep, impunctate; basal foveae narrow, deep, sparsely pubescent and punctate. Elytral intervals convex, intervals 1–5 glabrous medially, with a row of setae laterally (Fig. 80), pubescent in apical one-fifth in a few specimens, intervals 6–9 pubescent throughout; striae deep, punctate; humeral angles obtuse (Fig. 66). Abdominal sterna IV–VI sparsely pubescent medially, densely pubescent laterally; sternum VII narrowly rounded apically in both sexes (Figs 94–95). Lamella of aedeagus round at apex (Fig. 117), thin and straight in lateral view (Fig. 118).

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Creative Commons Attribution 3.0 (CC BY 3.0)

© Ye Valim, David H. Kavanaugh, Hongliang Shi, Hongbin Liang

Source: ZooKeys

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