Taxonomic history

Xyleborus apicalis Blandford, 1894b: 105.

Ambrosiodmus apicalis (Blandford): Wood, 1989: 169.

Anisandrus apicalis (Blandford): Hulcr et al., 2007: 578.

Diagnosis

3.05−3.4 mm long (mean = 3.17 mm; n = 5); 2.33−2.43 times as long as wide. This species can be distinguished by the mesonotal mycangial tuft the length of the scutellum; elytral disc with or without a weak transverse saddle-like depression; posterolateral margin costate to interstriae 5; declivity appearing bisulcate, weakly impressed from striae 1−2, interstriae 3 feebly inflated, tuberculate from base to apical half then becoming flattened and unarmed to apex; and moderately sized sharp incurved spine at base of declivity on interstriae 2.

This species strongly resembles Anisandrus cristatus and A. n. sp. 8 and is most easily distinguished by the moderate size, the less strongly impressed declivital sulci and smaller spines on interstriae 3 that are not backwardly hooked and much smaller than the spine at the summit of interstriae 2.

May be confused with

Anisandrus congruens, A. cristatus, A. geminatus, A. niger, A. sinivali, and A. venustus

Distribution

China (Anhui, Guangxi, Guizhou, Hainan, Jiangxi, Shanxi, Sichuan, Xizang, Yunnan), India (Meghalaya, Sikkim, West Bengal), Japan, South & North Korea, Kuril Islands, Nepal, Thailand

Host plants

a polyphagous species usually attacking angiosperms, but also recorded from Pinus (Pinaceae) (Murayama 1936, Nobuchi 1966)

Remarks

Published records from India, Nepal, Thailand, and some Chinese provinces may refer to Anisandrus cristatus or Anisandrus n. sp. 8, with which A. apicalis has been confused previously.

DNA data

Sequences available for COI and CAD.

COI: MN619839MN619840

CAD: MN620132MN620133