Taxonomic history

Xyleborinus cuneatus Smith, Beaver & Cognato 2020 (in Smith et al. 2020b): 338.

Diagnosis

2.1−2.2 mm long (mean = 2.13 mm; n = 3); 3.14−3.23 times as long as wide. This species is distinguished by the elytra parallel-sided in basal half, tapering posteriorly; declivital face with interstriae 1 and 2 unarmed by tubercles; elytral declivital face moderately sulcate; small body size; lateral declivital margins moderately elevated, costate, bearing 4−6 pairs of large sharply pointed backwardly hooked denticles (often asymmetric); elytra with small denticles on interstriae 1−4 extending anteriorly onto the disc to at least the midpoint; strial punctures large; declivital surface shagreened, dull; and elongate body form.

This species is very similar to X. spinipennis and can be recognized by the smaller size and more elongate form, elytra with small denticles on interstriae 1−4 extending anteriorly onto the disc to at least the midpoint, and pronotum more elongate, 1.22 times as long as wide.

May be confused with

Xyleborinus andrewesi, X. disgregus, X. jianghuasuni, X. sculptilis, X. speciosus, and X. spinipennis

Distribution

Thailand

Host plants

unknown (Smith et al. 2020b)

DNA data

specimens not available for sequencing