Taxonomic history

Xyleborus velatus Sampson, 1913: 443.

Euwallacea velatus (Sampson): Wood, 1989: 173.


Xyleborus rudis Eggers, 1930: 192Smith et al., 2020b: 260.

Xyleborus assamensis Eggers, 1930: 195. Preoccupied by Stebbing 1909. Wood, 1989: 173.

Xyleborus asperipennis Eggers, 1934b: 27. Unnecessary new name for X. assamensis Eggers nec Stebbing. Wood, 1989: 173.


2.8−3.6 mm long (mean = 3.28 mm; n = 5); 2.31−2.57 times as long as wide. This species is distinguished by the granulate posterolateral costa, pronotum appearing subquadrate (type 3) when viewed dorsally; protibia outer margin rounded, bearing nine small socketed denticles, sockets small; posterolateral margin of declivity costate and granulate; declivity rounded and convex; and elytral bases rounded, never weakly costate, or granulate.

May be confused with

Euwallacea fornicatus species complex (E. fornicatior, E. fornicatus, E. kuroshio, E. perbrevis), E. andamanensis, E. geminus, E. interjectus, E. malloti, E. neptis, E. semirudis, E. testudinatus, E. validus


China (Xizang, Yunnan), India (Andaman Is, Arunachal Pradesh, Assam, Meghalaya, Nagaland, Sikkim, Uttar Pradesh, West Bengal), Laos, Myanmar, Nepal, Thailand, Vietnam

Host plants

polyphagous (Maiti and Saha 2004)

DNA data

Sequences available for COI and CAD.

COI: HM064083MN619955

CAD: HM064263MN620228