Immanus sarawakensis

Taxonomic history

Xyleborus sarawakensis Eggers, 1923: 176.

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

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

Diagnosis

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 elytralelytral:
pertaining to the elytra
declivitydeclivity:
downward slope of either the pronotum or elytra
, densely setose body, declivitaldeclivital:
pertaining to the elytral declivity
interstriae 2 bearing a row of 2−3 denticlesdenticle:
a small tooth, the sides of which are equal and the tip is above the middle of the base
and all declivitaldeclivital:
pertaining to the elytral declivity
interstriae slightly elevated.

May be confused with

Immanus desectus, I. permarginatus

Distribution

East & West Malaysia, Thailand

Host plants

recorded from Lophopetalum (Celastraceae), Parinari (Chrysobalanaceae), Xanthophyllum (Polygalaceae), and an unidentified genus of Annonaceae (Browne 1961bBrowne 1961b:
Browne FG. 1961b. The biology of Malayan Scolytidae and Platypodidae. Malayan Forest Records 22: 1-255.)

DNA data

specimens not available for sequencing