Cyclorhipidion miyazakiense (Murayama, 1936)

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 miyazakiense (Murayama, 1936) Fig. 42E, F, K

Xyleborus miyazakiensis Murayama, 1936: 144.

Cyclorhipidion miyazakiense (Murayama): Smith et al. 2018b: 395.

Xyleborus armipennis Schedl, 1953c: 27. Synonymy: Smith et al. 2018b: 395.

Xyleborus wakayamensis Nobuchi, 1981a: 144. Synonymy: Smith et al. 2018b: 395.

Type material.

Lectotype Xyleborus armipennis (NHMW). Holotype Xyleborus wakayamensis (NIAES).

New records.

China: Fukien [Fujian], Shaowu, Tachuland, 4.v.1943, T.C. Maa (BPBM, 1). N. Guangxi reg., Miaoershan, S slope, 1300-200 m, 25-28.vi.1997, Bolm (NHMB, 2; RABC, 1). Japan: Okinawa, Yona, J. Hulcr, ex Castanopsis (UFFE, 1). Vietnam: Lao Cai, Hoang Lien N.P., 22.35, 103.77, 1500 m, 17.v.2019, VN156, S.M. Smith, A.I. Cognato, ex 4 cm branch (MSUC, 1).

Diagnosis.

2.6-3.0 mm long (mean = 2.87 mm; n = 4); 2.5-2.8 × as long as wide. This species is distinguished by the elytral disc with a shallow median saddle-like impression; declivity very steep; declivital posterolateral margin carinate to interstriae 5; elytral apex bearing two single triangular spines at interstriae 1 and 3 that are at least the width of an interstria (additional smaller denticles may be present along posterolateral margin); and declivital face unarmed by tubercles.

Similar species.

Cyclorhipidion armiger , C. obesulum , C. xyloteroides .

Distribution.

China (Fujian, Guangxi*, Sichuan), Japan, Thailand, Vietnam*.

Host plants.

Recorded only from Castanopsis and Quercus ( Fagaceae ) ( Murayama 1936; Beaver et al. 2014).

Figures

Figure 42. Dorsal, lateral and declivital view of Cyclorhipidion inarmatum lectotype, 2.8 - 3.0 mm (A, B, I), C. japonicum, 2.1 - 2.3 mm (C, D, J), C. miyazakiense, 2.6 - 3.0 mm (E, F, K), C. muticum holotype, 4.0 mm (G, H, L).