Xyleborinus schaufussi (Blandford, 1894) Fig. 85C, D, J

Xyleborus schaufussi Blandford, 1894b: 117.

Xyleborinus schaufussi (Blandford): Wood and Bright 1992: 816.

Xyleborus kraunhiae Niisima, 1910: 14. Synonymy: Smith et al. 2018b: 397.

Type material.

Syntypes Xyleborus schaufussi (NHMUK). Syntypes of Xyleborus kraunhiae should be housed in NIAES but have not been located (Smith et al. 2018b).

New records.

China: Guizhou, Guiyang, Huaxi, 31.iv.2015, Guangyu Liu, ex ethanol trap (UFFE, 1). Sichuan, Tongjiang, 1.viii.1980, Yongguang Shen, ex Betula sp. (NMNH, 1).

Diagnosis.

2.5-3.1 mm long (mean = 2.73 mm; n = 5); 3.21-3.57 × as long as wide. This species is distinguished by the posterior margin of elytra broadly rounded; declivital face with interstriae 1 and 2 unarmed by tubercles; declivital face strongly sulcate; large body size; lateral declivital margins strongly elevated, costate, bearing 4-6 pairs of large sharply pointed backwardly hooked denticles (often asymmetric); sulcate area of declivity impunctate, shagreened, dull; and elongate body form.

Similar species.

Xyleborinus artestriatus, X. echinopterus, X. ephialtodes, X. octiesdentatus, X. speciosus, X. spinipennis .

Distribution.

China* (Guizhou, Sichuan), Japan, Taiwan.

Host plants.

Recorded from Millettia ( Fabaceae) (Niisima 1910), Fagus ( Fagaceae) and Symplocos ( Symplocaceae) (Beaver and Liu 2010), and Betula ( Betulaceae).