Taxonomic history

Xyleborus kirishimanus Murayama, 1955: 85.

Coptodryas kirishimanus (Murayama): Wood and Bright, 1992: 825.

Microperus kirishimanus (Murayama): Beaver and Liu, 2010: 28.


1.6−1.8 mm long (mean = 1.69 mm; n = 5); 2.43−2.75 times as long as wide. This species is distinguished by the elytral disc flat; elytral declivity short, steep, obliquely truncate; posterolateral carina denticulate; declivital interstriae straight from base to apex, never laterally broadened; denticles on declivital summit and margins larger, more sharply acute, and denser than those on declivital face.

May be confused with

Microperus latesalebrinus, M. nudibrevis, and M. perparvus


Japan, Taiwan

Host plants

recorded from Castanopsis, Quercus (Fagaceae), and Ilex (Aquifoliaceae) (Nobuchi 1981a)

DNA data

Sequences available for COI and CAD.

COI: MN619972MN619973

CAD: MN620248MN620249MN620250