Taxonomic history

Xyleborus dossuarius Eggers, 1923: 187.

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


2.6 mm long (mean = 2.6 mm; n = 5); 2.0−2.17 times as long as wide. This species can be distinguished by the elytral summit transversely impressed with a saddle-like depression; declivital base armed by two pairs of denticles, one pair on interstriae 2 and the other on interstriae 3; bicolored elytra and pronotum that are darker on the apical areas; interstrial setae recumbent, finer, almost hair-like, in 2−3 confused rows on interstriae 2−4; and striae setose, setae similar to those of interstriae.

May be confused with

Diuncus corpulentus and D. javanus


Brunei, Philippines, Vietnam

Host plants

recorded from Swietenia, Toona (Meliaceae), and Ficus (Moraceae) (Schedl 1966a, Nobuchi 1979)

DNA data

specimens not available for sequencing