Immanus desectus

Taxonomic history

Xyleborus desectus Eggers, 1923: 167.

Ambrosiodmus desectus (Eggers): Wood and Bright, 1992: 672.

Immanus desectus (Eggers): Beaver et al., 2014: 53.

Synonyms

Xyleborus desectus arduus Schedl, 1942a: 188. Wood and Bright, 1992: 673.

Diagnosis

5.0−5.5 mm long; (mean = 5.2 mm; n = 5); 2.27−2.5 times as long as wide. This species can be distinguished by the comparatively small size; truncatetruncate:
appearing cut off or suddenly shortened
declivitydeclivity:
downward slope of either the pronotum or elytra
with a circumdeclivital costacosta:
elevated ridge that is rounded at its crest, not necessarily with sharp appearance
; and 2−3 denticlesdenticle:
a small tooth, the sides of which are equal and the tip is above the middle of the base
on declivitaldeclivital:
pertaining to the elytral declivity
interstriae 2.

May be confused with

Immanus sarawakensis, I. permarginatus

Distribution

Indonesia (Java), West Malaysia, Philippines, Thailand, Vietnam

Host plants

recorded only from Castanospermum (Fabaceae) (Kalshoven 1959bKalshoven 1959b:
Kalshoven LGE. 1959b. Studies on the biology of Indonesian Scolytoidea 4. Data on the habits of Scolytidae. Second part. Tijdschrift voor Entomologie 102: 135-173 + pls. 15-22.)

DNA data

Sequences available for COI and CAD.

COI: MN619961

CAD: MN620238