Taxonomic history

Xyleborus bicolor Blandford, var. α Sampson, 1923: 289.

Xyleborus alpha Beeson, 1929: 239

Coptodryas alpha (Beeson): Wood and Bright, 1992: 823.

Microperus alpha (Beeson): Hulcr, 2010: 111


1.7−1.8 mm long (mean = 1.74 mm; n = 5); 2.43−2.83 times as long as wide. This species is distinguished by the elytral disc flat; elytral declivity short, steep; posterolateral margin of declivity carinate; elytral declivity with sparse minor denticles, less abundant than strial punctures; and denticles uniform in size.

May be confused with

Microperus recidens


Bangladesh, China (Guizhou, Yunnan), India (Arunachal Pradesh, Assam, West Bengal), Laos, West Malaysia, Sri Lanka, Taiwan, Thailand, Vietnam

Host plants

polyphagous (Maiti and Saha 2004)

DNA data

Sequences available for COI and CAD.

COI: MN619964

CAD: MN620241