Taxonomic history

Xyleborus sarawakensis Eggers, 1923: 176.

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

Immanus sarawakensis (Eggers): Beaver et al., 2019: 385.


The largest species occurring in Southeast Asia, 7.0−7.8 mm long (mean = 7.26 mm; n = 5); 1.97−2.05 times as long as wide. This species can be distinguished by the very large size, rounded elytral declivity, densely setose body, declivital interstriae 2 bearing a row of 2−3 denticles and all declivital interstriae slightly elevated.

May be confused with

Immanus desectus


East & West Malaysia, Thailand

Host plants

recorded from Lophopetalum (Celastraceae), Parinari (Chrysobalanaceae), Xanthophyllum (Polygalaceae), and an unidentified genus of Annonaceae (Browne 1961b)

DNA data

specimens not available for sequencing