Taxonomic history

Xyleborus spinipennis Eggers, 1930: 202.

Xyleborinus spinipennis (Eggers): Wood and Bright, 1992: 817

Diagnosis

2.3−2.75 mm long (mean = 2.56 mm; n = 5); 2.83−2.89 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); strial punctures large; elytra with small denticles on interstriae 1−4 not extending further than the declivital summit; declivital surface shagreened, dull; and elongate body form.

This species is very similar to X. cuneatus and can be distinguished by the larger size, less elongate form, elytra with small denticles on interstriae 1−4 not extending further than the declivital summit, pronotum less elongate, 1.14 times as long as wide.

May be confused with

Xyleborinus artestriatus, X. cuneatus, X. echinopterus, X. ephialtodes, X. octiesdentatus, X. schaufussi, and X. speciosus

Distribution

China (Sichuan), India (Assam), Nepal, Vietnam

Host plants

unknown (Smith et al. 2020b)

Remarks

Eggers (1930) stated that the species was 2.0 mm long in his description. The holotype was measured by S.L. Wood and was found to be 2.4 mm long.

DNA data

specimens not available for sequencing