Taxonomic history
Xyleborus mancus Blandford, 1898: 428.
Apoxyleborus mancus (Blandford): Wood, 1980: 90.
Xylosandrus mancus (Blandford): Wood, 1984: 229.
Synonyms
Xyleborus abruptus Sampson, 1914: 388. Schedl, 1951a: 51.
Xyleborus mancus formosanus Eggers, 1930: 186. Schedl, 1952b: 61.
Diagnosis
3.2−3.6 mm long (mean = 3.46 mm; n = 5); 2.13−2.4 times as long as wide. This species can be distinguished by its large size; upper part of eye smaller than lower part; elytral disc strongly ascending apically, longer than declivity; declivital face steep, abruptly separated from disc; elytra appearing truncate; posterolateral margins of elytra carinate to suture forming a circumdeclivital ring; declivital face flat, shagreened, four punctate, glabrous, and somewhat wavy striae visible; strial punctures large; interstriae glabrous, granulate, granules more abundant near apex (especially between interstriae 1 and 2); posterolateral margin granulate; pronotum as long as wide, from dorsal view rounded (type 1) and lateral view basic (type 0), summit at midpoint, basal half shining, densely punctate; and broad, dense mycangial tuft on the pronotal base.
May be confused with
Amasa spp., Xylosandrus amputatus, and X. n. sp. 3
Distribution
Within the study region, recorded from China (Chongqing*, Gansu, Hainan, Hong Kong*, Xizang, Yunnan), India (Karnataka, Kerala), Laos*, Taiwan, Thailand, Vietnam. Outside the region, recorded from East Africa (Tanzania), Indonesia (Java, Sumatra), Madagascar, Malaysia (E. & W.), Mauritius, Philippines, Seychelles, Sri Lanka.
Host plants
polyphagous (Dole and Cognato 2010)