Beaverium magnus (Niisima, 1910)

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

Beaverium magnus (Niisima, 1910) Fig. 31E, F, I

Xyleborus magnus Niisima, 1910: 111.

Beaverium magnus (Niisima): Smith et al. 2018c: 841.

Xyleborus rufobrunneus var. dihingensis Eggers, 1930: 189. Smith et al. 2018c: 841.

Xyleborus chujoi Schedl, 1951a: 73. Smith et al. 2018c: 841.

Type material.

Holotype Xyleborus rufobrunneus var. dihingensis (FRI).

New records.

China: Chongqing, Jinfo Mtn, 9.v.2016, Tian-Shang, Lv-Jia, ex Ficus sp. (RABC, 1). Hong Kong, Tai Po Kau, vi.2017, J. Skelton (UFFE, 1). Jiangxi, Xin Feng, 29.vii.2016, Lai, S-C., ex Castanopsis carlesii (RABC, 1). Yunnan, Menglun, 750 m, 7.v.1962, Shimei Song, ex Cassia siamea [= Senna siamea ] (NMNH, 1). Japan: Okinawa Pref., Iriomote-jima Island, 2.xi.2016, H. Kajimura, ex Machilus thunbergii (MSUC, 1). Taiwan: Nantau Co., WuCheng Village, Lien-Hun-Chih Station, 20.ix.2001, L. Stange, N. Wang, ex blacklight trap (FSCA, 1). Vietnam: Thua Thien-Hue, Bach Ma N.P., 16.22897, 107.85349, 415 m, 15.ii.2017, VN57, A.I. Cognato, T.A. Hoang, ex 5 cm diameter branch; twig (MSUC, 1).

Diagnosis.

5.0-5.6 mm long (mean = 5.2 mm; n = 10); 2.21-2.55 × as long as wide. This species is distinguished by the moderate size; elytral disc concave with a transverse saddle-like depression; declivital posterolateral margins carinate; and boundary between elytral disc and declivity smoothly abrupt.

Similar species.

Beaverium lantanae , B. latus .

Distribution.

China (Chongqing*, Hong Kong*, Jiangxi*, Yunnan), India (Assam, West Bengal), Japan, Taiwan, Thailand, Vietnam.

Host plants.

Polyphagous. Recorded from Artocarpus ( Moraceae ), Pterocarpus ( Fabaceae ) ( Beeson 1961), Machilus ( Lauraceae ), and Senna ( Fabaceae ).

Figures

Figure 31. Dorsal, lateral and declivital view of Beaverium lantanae, 4.1 - 4.5 mm (A, B, G), B. latus, 6.0 mm (C, D, H), and B. magnus, 5.0 - 5.6 mm (E, F, I).