Taxonomic history

Xyleborus perparvus Sampson, 1922: 151.

Microperus perparvus (Sampson): Maiti and Saha, 1986: 97.

Coptodryas perparva (Sampson): Wood and Bright, 1992: 826.


Xyleborus tsukubanus Murayama, 1954: 184. Beaver et al., 2008: 233.


1.5−1.9 mm long (mean = 1.64 mm; n = 5); 2.71−2.86 times as long as wide. This species is distinguished by the elytral disc flat with short, steep obliquely truncate elytral declivity; posterolateral carina weak, denticulate; declivital interstriae straight from base to apex, never laterally broadened; denticles on declivital summit denser and of equal size to those on declivital face; declivital face shagreened, dull.

May be confused with

Microperus kirishimanus, M. latesalebrinus, and M. nudibrevis


Bangladesh, China (Fujian, Guizhou, Hong Kong, Hunan, Jiangxi, Sichuan, Xizang, Yunnan), India (Andaman Is, Assam, West Bengal), Indonesia (Ternate), Japan, East & West Malaysia, Myanmar, New Guinea, Solomon Is., Taiwan, Thailand, Vietnam

Host plants

polyphagous, possibly with some preference for Dipterocarpaceae (Beaver and Liu 2010)

DNA data

Sequences available for COI and CAD.

COI: MN619983

CAD: MN620257