Cyclorhipidion pilipenne (Eggers, 1940)

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 pilipenne (Eggers, 1940) Fig. 44E, F, K

Xyleborus pilipennis Eggers, 1940: 140.

Cyclorhipidion pilipenne (Eggers): Wood and Bright 1992: 701.

Type material.

Paratype (NMNH).

New records.

China: S Yunnan, Xishuangbanna, 23 km NW Jinghong, vic. Na Ban village (NNNR), 22°10'N, 100°39'E, 700-1000 m, v-vii.2009, L. Meng (RABC, 2); Xishuangbanna Sanchahe Nat. Res., 22°09.784'N, 100°52.256'E, 2186 m, 29-30.v.2008, A. Cognato, ex Quercus (MSUC, 1). Vietnam: Cao Bang, 22°36.454'N, 105°52.083'E, 1661 m, 15.iv.2014, VN39, Cognato, Smith, Pham, 3-6 cm branches (MSUC, 10). Vietnam: Lao Cai, Hoang Lien N.P., 22.35, 103.77, 1500-2000 m, 19.v.2019, VN180, S.M. Smith, A.I. Cognato, ex 5 cm branch (MSUC, 17). Thua Thien-Hue, Bach Ma N.P., 16.20089, 107.84824, 919 m, 16.ii.2017, VN67, A.I. Cognato, T.A. Hoang, ex 2 cm diameter & 8 cm diameter (MSUC, 2).

Diagnosis.

2.5-3.0 mm long (mean = 2.86 mm; n = 5); 2.78-3.0 × as long as wide. This species is distinguished by moderate size; declivital slope gentle, gradual; separation between the smooth, shiny elytral disc and shagreened declivity gradual, not sharply distinct; declivital striae weakly impressed, punctures small, indistinct; declivital interstriae armed with a row of moderately spaced uniseriate granules; and elytral apex and posterolateral margin granulate.

Similar species.

Cyclorhipidion denticauda , C. ohnoi , C. petrosum .

Distribution.

China* (Yunnan), Indonesia (Java), Thailand, Vietnam*.

Host plants.

Recorded only from Castanopsis ( Beaver et al. 2014) and Quercus ( Fagaceae ).

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).