Diuncus dossuarius (Eggers, 1923) Fig. 49E, F, K

Xyleborus dossuarius Eggers, 1923: 187.

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

Type material.

Paratype (NHMUK).

Diagnosis.

2.6 mm long (mean = 2.6 mm; n = 5); 2.0-2.17 × as long as wide. This species is 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 two or three confused rows on interstriae 2-4; and striae setose, setae similar to those of interstriae.

Similar species.

Diuncus corpulentus, D. javanus .

Distribution.

Brunei, Philippines, Vietnam.

Host plants.

Recorded from Swietenia, Toona ( Meliaceae), and Ficus ( Moraceae) (Schedl 1966a; Nobuchi 1979).