Cyclorhipidion pruinosulum (Browne, 1979)

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

Cyclorhipidion pruinosulum (Browne, 1979) Fig. 44G, H, L

Xyleborus pruinosulus Browne, 1979 (in Beaver and Browne 1979): 611.

Cyclorhipidion pruinosulum (Browne): Beaver 1995a: 203.

Type material.

Holotype (NHMUK).

New records.

Vietnam: Dong Nai, Cat Tien N.P., 11.40817, 107.38098, 134 m, 20-22.ii.2017, VN81, A.I. Cognato, T.A. Hoang, ex FIT (MSUC, 2).

Diagnosis.

2.7-3.5 mm long (mean = 2.92 mm; n = 5); 2.5-2.9 × as long as wide. This species is distinguished by its unique elytral sculpturing: declivital interstriae 1 armed by a large denticle near the base and a small spine near the apex with the area in between appearing concave.

Similar species.

None.

Distribution.

Brunei, East & West Malaysia, Thailand, Vietnam*.

Host plants.

Unknown.

Figures

Figure 44. Dorsal, lateral and declivital view of Cyclorhipidion perpilosellum, 2.5 - 3.0 mm (A, B, I), C. petrosum holotype, 3.9 - 4.1 mm (C, D, J), C. pilipenne, 2.5 - 3.0 mm (E, F, K), and C. pruinosulum, 2.7 - 3.5 mm (G, H, L).