Diuncus ciliatoformis (Schedl, 1953) stat. res. Fig. 49A, B, I

Xyleborus ciliatoformis Schedl, 1953d: 81.

Diuncus ciliatoformis (Schedl): Hulcr and Cognato 2009: 32.

Type material.

Lectotype (NHMW).

New records.

China: Chongqing, Pengshui, 11.viii.2016, Tian-Shang (RABC, 1); Guizhou, Guiyang, East temple, viii.2015, Su, T-L. (RABC, 1).

Diagnosis.

1.65-1.95 mm long (mean = 1.78 mm; n = 5); 2.36-2.62 × as long as wide. This species is distinguished by the minute size; unarmed declivity; moderately impressed declivital striae 1; declivity densely covered by recumbent setae on the striae and interstriae; and lateral margin of the protibiae armed with four denticles.

Similar species.

Diuncus justus .

Distribution.

China* (Chongqing, Guizhou), East & West Malaysia, New Guinea, Taiwan, Thailand.

Host plants.

Recorded from Shorea, Vatica ( Dipterocarpaceae) and Lithocarpus ( Fagaceae). Browne (1961b) suggests a preference for Dipterocarpaceae .

Remarks.

This species had previously been considered a synonym of D. justus by Hulcr and Cognato (2013). It is here removed from synonymy and reinstated as a distinct species. It is distinguished from D. justus by the moderately impressed declivital striae 1 and the declivity densely covered by recumbent setae on the striae and interstriae.