Taxonomic history

Xyleborus subnepotulus Eggers, 1930: 178.

Ambrosiodmus subnepotulus (Eggers): Wood and Bright, 1992: 680.

Ambrosiophilus subnepotulus (Eggers): Beaver and Liu, 2010: 22.


Xyleborus cristatuloides Schedl, 1971a: 284. Smith et al. 2020b: 70.


2.5−2.8 mm long (mean = 2.64 mm; n = 7); 2.27−2.6 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, 2 large tubercles on interstriae 3; declivity weakly bisulcate from sutural margin to striae 2; interstriae 3 weakly convex; pronotal discal punctures minute, very fine, widely spaced by 2−6 diameters of a puncture, surface shining; and declivital surface smooth, shining; and moderate size.

May be confused with

Ambrosiophilus consimilis, A. cristatulus, A. indicus, and A. osumiensis


China (Guizhou, Hong Kong), Indonesia (Java), Laos, Myanmar, Sri Lanka, Taiwan

Host plants

recorded host is Albizia lebbeck (Fabaceae) (Beeson 1930)

DNA data

Sequences available for COI.

COI: MN619837