A monograph of the Xyleborini (Coleoptera, Curculionidae, Scolytinae) of the Indochinese Peninsula (except Malaysia) and China Author Smith, Sarah M. Department of Entomology, Michigan State University, 288 Farm Lane, East Lansing, Michigan 48824, USA https://orcid.org/0000-0002-5173-3736 camptocerus@gmail.com Author Beaver, Roger A. 161 / 2 Mu 5, Soi Wat Pranon, T. Donkaew, A. Maerim, Chiangmai 50180, Thailand Author Cognato, Anthony I. Department of Entomology, Michigan State University, 288 Farm Lane, East Lansing, Michigan 48824, USA text ZooKeys 2020 983 1 442 http://dx.doi.org/10.3897/zookeys.983.52630 journal article http://dx.doi.org/10.3897/zookeys.983.52630 1313-2970-983-1 7DED4CE2934C4539945F758930C927F9 C890C7FD4B2D57A8B1A062305ED42D53 Xyleborus pfeilii (Ratzeburg, 1837) Fig. 90G, H, L Bostrichus pfeilii Ratzeburg, 1837: 168. Xyleborus pfeilii (Ratzeburg): Eichhoff, 1864: 38. Bostrichus alni Mulsant & Rey, 1856: 111. Synonymy: Eichhoff 1876b : 378. Xyleborus vicarius Eichhoff, 1876a: 203. Synonymy: Schedl 1963a : 482. Xyleborus adumbratus Blandford, 1894b: 115. Synonymy: Schedl 1963a : 482. Xyleborus septentrionalis Niisima, 1909: 162. Synonymy: Smith et al. 2018b : 398. Type material. Lectotype Xyleborus septentrionalis (NIAES), paralectotype (NIAES, 1). New records. China: Jiangxi, Jinggang Shan Mts., Xiangzhu vill. env., 26°35.5'N , 114°16.0'E , 374 m, rice fields, forested stream valley, M. Fikacek , J. Hajek (MNHP, 2; RABC, 1). India: Assam-Arunachal Pradesh border: Bhalukpong, 27°00'48"N , 92°39'08"E , 150 m, 1-8.v.2012, L. Dembicky , FIT (ZFMK, 2); as previous except FIT (flight intercept trap) (ZFMK, 1). Laos: NE, Hua Phan, Ban Saluei, Phou Pan Mt., ~ 20°12'N , 104°01'E , 1300-1900 m, 17-26.v.2009, C. Holzschuh (RABC, 1). Vientiane, Ban Van Eue, 15.xii.1965, native collector (BPBM, 1). Sri Lanka: Monaragala Dist., Buttala, 50 m, 6.vi.1975, S.L. Wood, ex Anogeissus latifolia (NMNH, 1); as previous except: collected from log (NMNH, 2). Diagnosis. 2.9-3.2 mm long (mean = 3.02 mm; n = 5); 2.73-3.2 x as long as wide. This species is distinguished by the declivity steep, appearing flat when viewed laterally; the declivital interstriae 1-3 laterally broadened from base to declivital midpoint then narrowing towards apex; declivital posterolateral margin costate to interstriae 7; declivital interstriae 1 and 3 flat, interstriae 2 weakly impressed; declivital striae weakly impressed; declivital interstriae 1 armed by two or three large denticles, interstriae 2 unarmed, declivital interstriae 3 armed by two or three large denticles, denticles on interstriae 3 taller than those on interstriae 1; and declivital strial punctures large, shallow, coarse and confused near large tubercles. Similar species. Xyleborus affinis , X. cognatus , X. ferrugineus , X. festivus , X. perforans , X. volvulus . Distribution. Recorded in the study region from China (Fujian, Hunan, Jiangxi*, Sichuan, Yunnan), India (Andaman Is, Assam*), Laos*. Also recorded from Japan, South Korea, throughout Europe, and in North Africa and Turkey. Imported to and established in USA and Canada ( Vandenberg et al. 2000 ; Gomez et al. 2018a ). Host plants. Polyphagous ( Wood and Bright 1992 ; Mizuno and Kajimura 2008). Remarks. Mizuno and Kajimura (2008) provide information on the biology, gallery system and development.