Taxonomic history

Scolytus spinosus Olivier, 1800: 9.

Eccoptopterus spinosus (Olivier): Schedl, 1962a: 201.

Synonyms

Eccoptopterus sexspinosus Motschulsky, 1863: 515Schedl 1962a: 201.

Xyleborus abnormis Eichhoff, 1869: 282. Eichhoff 1876b: 379.

Platydactylus gracilipes Eichhoff, 1886: 25. Hulcr and Cognato 2013: 87.

Xyleborus sexspinosus multispinosus Hagedorn, 1908: 377. Schedl 1963a: 92.

Xyleborus collaris Eggers, 1923: 194. Schedl 1970b: 225 (as synonym of E. gracilipes)

Eccoptopterus sagittarius Schedl, 1939b: 41. Hulcr and Cognato 2013: 87.

Eccoptopterus sexspinosus pluridentatus Schedl, 1942c: 49Kalshoven 1959a: 96 (as synonym of multispinosus)

Xyleborus eccoptopterus Schedl, 1951b: 154Beaver 1987: 67.

Diagnosis

2.5−3.7 mm long (mean = 2.9 mm; n = 5); 2.06−2.27 times as long as wide. This species can be distinguished by the presence of three spines on each elytral margin, with the largest spine near the declivital summit.

May be confused with

Eccoptopterus limbus

Distribution

throughout the tropical regions of Africa and Asia to New Guinea, Australia, the Solomon Islands and Samoa; recorded in the study region from Cambodia, China (Yunnan), India (Andaman Is, Assam, Maharashtra, Sikkim, Tamil Nadu, West Bengal), Laos, Myanmar, Taiwan, Thailand, Vietnam

Host plants

polyphagous (Browne 1961a, Schedl 1963a)

Remarks

Following Bousquet (2018), we date the original description of the species to 1800 rather than the usually cited 1795.

Eccoptopterus spinosus is a morphologically variable species and represents a species complex that will require a more detailed investigation to address. COI sequences from specimens collected from Ghana, Papua New Guinea, Indonesia (Java), Taiwan, and Vietnam differed from 12−18% between sites, and CAD varied by 2−7% (Cognato et al. 2020).

DNA data

Sequences available for COI and CAD.

COI: HM064080HM064082MN619917MN619916MN619915MN619918MN619919MN619920

CAD: HM064262HM064260; HM064259MN620194MN620195MN620196