Taxonomic history

Xyleborus similis Ferrari, 1867: 23.

Wallacellus similis (Ferrari): Hulcr and Cognato, 2010a: 29.

Euwallacea similis (Ferrari) Storer et al., 2015: 396


Bostrichus ferrugineus Bohemann, 1859: 88. Preoccupied by Fabricius (1801). Schedl, 1960a: 11.

Xyleborus parvulus Eichhoff, 1868b: 152. Schedl 1959: 505.

Xyleborus dilatatus Eichhoff, 1878b: 393. Schedl 1959: 505.

Xyleborus submarginatus Blandford, 1896b: 223. Eggers 1929: 48.

Xyleborus bucco Schaufuss, 1897: 212. Schedl 1959: 505.

Xyleborus capito Schaufuss, 1897: 215. Schedl 1959: 505.

Xyleborus novaguineanuus Schedl, 1936b: 530. Wood 1989: 177.

Xyleborus dilatatulus Schedl, 1953a: 127. Wood 1989: 177.


2.3−2.5 mm long (mean = 2.42 mm; n = 5); 2.88−3.13 times as long as wide. This species is distinguished by declivital interstriae 1 laterally broadened, bearing a large median tubercle and several small granules (rarely median tubercles absent); small body size and elongate form; and red brown color.

May be confused with

Euwallacea piceus, Planiculus spp., Xyleborus affinis, X. cognatus, X. ferrugineus, X. perforans, and X. volvulus


throughout the Oriental region from the Indian subcontinent through Southeast Asia and Indonesia to New Guinea, Australia, and the Pacific islands; tropical Africa, Indian Ocean islands; recorded in the study area from Bangladesh, Cambodia, China (Chongqing, Guangdong, Hainan, Hong Kong, Yunnan), India (Andaman Is, Assam, Jharkhand, Karnataka, Madhya Pradesh, Nicobar Is, Sikkim, Tamil Nadu, Uttarakhand, Uttar Pradesh, West Bengal), Laos, Myanmar, Nepal, Taiwan, Thailand, Vietnam; introduced to the US (Rabaglia et al. 2006, Gomez et al. 2018a) and Central and South America (Wood 2007)

Host plants

strongly polyphagous (Browne 1961b, Schedl 1963a)


The biology of the species is discussed by Browne (1961a, 1968), Kalshoven (1964) and Schedl (1963a).

DNA data

Sequences available for COI and CAD.

COI: MN619946MN619947MN619948MN619949MN619950MN619951MN619952HM064139 

CAD: HM064317; MN620218MN620219MN620220MN620221MN620222MN620223MN620224MN620225