Taxonomic history

Xyleborinus jianghuasuni Smith, Beaver & Cognato 2020 (in Smith et al. 2020b): 348.

Diagnosis

1.8 mm long (n = 3); 3.0 times 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; elytral declivital face feebly sulcate; small body size; lateral declivital margins weakly elevated, bearing 3 pairs of sharply pointed denticles, denticles subequal; denticles along interstriae 5 subequal to those on interstriae 3; sulcate area impunctate, surface strongly shagreened, dull; and elongate body form.

May be confused with

Xyleborinus cuneatus, X. disgregus, and X. sculptilis

Distribution

China (Yunnan)

Host plants

known from Quercus (Fagaceae) (Smith et al. 2020b)

DNA data

Sequences available for COI and CAD.

COI: MN620026

CAD: MN620294