Coptodryas mus (Eggers, 1930)

Smith, Sarah M., Beaver, Roger A. & Cognato, Anthony I., 2020, A monograph of the Xyleborini (Coleoptera, Curculionidae, Scolytinae) of the Indochinese Peninsula (except Malaysia) and China, ZooKeys 983, pp. 1-442 : 1

Coptodryas mus (Eggers, 1930) Fig. 36G, H, L

Xyleborus mus Eggers, 1930: 203.

Microperus mus (Eggers): Saha and Maiti 1984: 3.

Coptodryas mus (Eggers): Wood and Bright 1992: 825.

Type material.

Holotype (FRI).

New records.

China: Guizhou, Pingtang, 7.vi.1978, Luyi Luo, ex Carya sp. (NMNH, 2); as previous except: 5.xii.1978 (NMNH, 1). Vietnam: Cao Bang, 22°36.454'N, 105°52.083'E, 1661 m, 15.iv.2014, VN38, Cognato, Smith, Pham, ex 1-3 cm diameter branch/twigs (MSUC, 1).

Diagnosis.

2.3-2.4 mm long (mean = 2.4 mm; n = 5); 2.4-2.67 × as long as wide. This species is distinguished by its elongate form with acuminate elytral apex and gradual declivity; elytra shagreened; striae and interstriae distinct, interstrial punctures confused; body moderately setose; antennal club as long as wide; protibiae distinctly triangular; pronotum basic (type 0) when viewed laterally, basic (type 2) when viewed dorsally; and pronotum anterior margin with a row of six equally sized serrations.

Similar species.

Tricosa metacuneolus .

Distribution.

Bangladesh, China* (Guizhou), India (Sikkim, West Bengal), Vietnam*.

Host plants.

Recorded from Gmelina ( Lamiaceae ) and Michelia ( Magnoliaceae ) ( Maiti and Saha 2004).

Figures

Figure 36. Dorsal, lateral and declivital view of Coptodryas confusa, 1.8 - 2.2 mm (A, B, I), C. elegans syntype, 2.1 - 2.4 mm (C, D, J), C. inornata holotype, 3.1 - 3.2 mm (E, F, K), and C. mus, 2.3 - 2.4 mm (G, H, L).