Cyclorhipidion perpilosellum (Schedl, 1935)

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 perpilosellum (Schedl, 1935) Fig. 44A, B, I

Xyleborus perpilosellus Schedl, 1935a: 402.

Cyclorhipidion perpilosellum (Schedl): Wood and Bright 1992: 701.

Xyleborus punctatopilosus Schedl, 1936b: 532. Synonymy: Bright and Skidmore 1997: 4, 151.

Type material.

Lectotype Xyleborus perpilosellus (NHMW).

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, 2); as previous except: Simao, 1380 m, 22.vi.1978, Fanjie Zeng, ex Fagaceae (NMNH, 1). India: Arunachal Pradesh, Etalin vicinity, 28°36'56"N, 95°53'21"E, 700 m, 12-25.v.2012, L. Dembický (ZFMK, 1). Laos: C, Kham Mouan, Ban Khoun Ngeun, 18°07'N, 104°29'E, 24-29.iv.2001, P. Pacholátko (RABC, 1); 10 km N Luang-Prabang, Mekhong river, 240 km N Vientiane, hills c. 250 m, poor settlem[ent], prim[ary] veget[ation] lux, iv.1993, Insomsay Somsy (MFNB, 1). Vietnam: NE region, Bac Giang, Tay Yen Tu Nature Res., 10.vi.2016, at light, 21°11.6'N, 106°45.232'E, G.S. Powell (MSUC, 2). Cao Bang, 22°34.118'N, 105°52.537'E, 1048 m, 12-17.iv.2014, VN9, Cognato, Smith, Pham, ex FIT (MSUC, 1). [Ninh Binh], Cuc Phuong N.P., 20°15.586'N, 105°42.320'E, 147 m, 30.iv-1.v.2005, A. Kun (HNHM, 1). Vinh Phuc, Tam Dao, 930 m, 24-31.viii.2015, J.B. Heppner (FSCA, 1)

Diagnosis.

2.5-3.0 mm long (mean = 2.74 mm; n = 5); 2.08-2.31 × as long as wide. This species is distinguished by its very stout body; pronotum rounded from dorsal view (type 1); and lack of serrations on pronotum anterior margin; and uniseriate row of sparse, large tubercles on the declivity.

Similar species.

Cyclorhipidion pruinosum , C. sisyrnophorum .

Distribution.

‘Borneo’, China (Hainan, Yunnan*), India* (Arunachal Pradesh), Indonesia (Java), Laos*, West Malaysia, New Guinea, Philippines, Thailand, Vietnam*.

Host plants.

Recorded from Castanopsis , Lithocarpus , and Quercus ( Fagaceae ), and probably closely associated with that family.

Remarks.

The gallery system has few branches, and small, rather irregular brood chambers in the longitudinal plane ( Browne 1961b).

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).