Taxonomic history

Xyleborus corpulentus Eggers, 1930: 198.

Diuncus corpulentus (Eggers): Hulcr and Cognato, 2009: 30.


1.6−3.2 mm long (mean = 2.66 mm; n = 5); 1.33−2.31 times as long as wide. This species can be distinguished by the elytral disc convex; declivital summit armed by along interstriae 2; declivital interstriae 3, 5, 6 bearing a uniserate row of denticles along its length; interstrial setae minute, strongly confused, recumbent, as long as length between setae; and bicolored elytra and pronotum that are darker at the apical areas.

May be confused with

Diuncus dossuarius and D. javanus


China (Hainan, Xizang, Yunnan), India (Andaman Is, Assam, Arunachal Pradesh, Meghalaya, West Bengal), Laos, Nepal, Taiwan, Thailand, Vietnam

Host plants

polyphagous (Beeson 1930, Maiti and Saha 2004)


Hulcr and Cognato (2009) found it in association with Hadrodemius globus (Blandford) in Thailand.

DNA data

Sequences available for COI.

COI: MN619905