Taxonomic history

Xyleborus pseudopilifer Schedl, 1936a: 11.

Fortiborus pseudopilifer (Schedl): Smith et al., 2018a: 841.


6.6 mm long, (n = 1); 2.64 times as long as wide. This species can be distinguished by the large size; unique declivital sculpturing marked by a distinct boundary between disc and declivity; all interstriae bearing a series of 1–3 moderate to large tubercles at declivital summit and all interstriae bearing 3–8 irregularly spaced small to moderately sized tubercles; declivital punctures strongly confused; and discal interstriae impunctate.

May be confused with

Euwallacea destruens


‘Borneo’, Indonesia (Sumatra), East & West Malaysia, Philippines, Thailand, Vietnam

Host plants

unknown, but probably associated with Dipterocarpaceae like other Fortiborus species (Smith et al. 2020b)


Brood size can be as high as 120 in a gallery (Beaver and Browne 1978).

DNA data

specimens not available for sequencing