Taxonomic history

Xyleborus kadoyamaensis Murayama, 1934: 290.

Microperus kadoyamaensis (Murayama): Hulcr et al., 2007: 580.

Synonyms

Xyleborus denseseriatus Eggers, 1941b: 225. Smith et al. 2020b: 289.

Xyleborus nameranus Murayama, 1954: 194. Smith et al., 2018b: 396.

Xyleborus pubipennis Schedl, 1974: 263. Smith et al. 2020b: 289.

Xyleborus huangi Browne, 1983b: 34. Beaver, 2011: 285.

Diagnosis

1.8−2.0 mm long (mean = 1.92 mm; n = 5); 2.86−3.17 times as long as wide. This species is distinguished by the declivital interstriae densely covered with short semi-erect scales; elytral disc medially convex, appearing humped; elytral declivity long, gradual; all declivital interstriae uniformly granulate from base to apex; declivital face convex; and posterolateral costa granulate.

May be confused with

Microperus diversicolor, M. minax, and M. quercicola

Distribution

China (Fujian, Guangdong, Hong Kong, Hunan, Jiangxi, Yunnan, Zhejiang), Japan, South Korea, Taiwan, Vietnam

Host plants

polyphagous, attacking both gymnosperm and angiosperm trees (Beaver and Liu 2010)

DNA data

Sequences available for COI and CAD.

COI: MN619967MN619968MN619969MN619970MN619971

CAD: MN620244MN620245MN620246MN620247