Taxonomic history

Xylosandrus spinifer Smith, Beaver & Cognato 2020 (in Smith et al. 2020b): 408.

Diagnosis

3.3 mm long (n = 1); 2.3 times as long as wide. This species is unique among all Xylosandrus because of the unmistakable pair of very large spines on the declivital summit.

May be confused with

Xylosandrus spinifer superficially resembles Diuncus spp. but can differentiated by the following characteristics: the base of the pronotum has an elongate patch of dense punctures bearing a tuft of setae; the anterior margin of the pronotum is evenly rounded, and the asperities just above the margin are of the same size, rather than with a median, larger pair; the procoxae are separated; the posterolateral costa does not form a continuous carina, but is denticulate.

Distribution

China (Hong Kong), Thailand, Vietnam

Host plants

unknown (Smith et al. 2020b)

DNA data

Sequences available for COI and CAD.

COI: MN620104

CAD: MN620361