Taxonomic history

Xyleborus cristatulus Schedl, 1953b: 300.

Ambrosiodmus cristatulus (Schedl): Wood and Bright, 1992: 672.

Ambrosiophilus cristatulus (Schedl): Beaver et al., 2014: 24.


2.1−2.3 mm long (mean = 2.21 mm; n = 4); 2.30−2.39 times as long as wide. This species can be distinguished by declivital interstriae 1 unarmed; interstriae 2 armed by one tubercle at declivital summit, remainder of interstriae 2 unarmed; interstriae 3 with three small denticles; declivity weakly bisulcate from sutural margin to striae 2; interstriae 3 weakly convex; pronotal discal punctures small, fine, moderately spaced by 1−3 diameters of a puncture, surface shagreened; declivital surface smooth, shining; and small size.

May be confused with

Ambrosiophilus consimilis, A. indicus, and A. subnepotulus


China (Fujian), East & West Malaysia, Thailand

Host plants

unknown (Smith et al. 2020b)

DNA data

specimens not available for sequencing