Taxonomic history

Xyleborus seriatus Blandford, 1894b: 111.

Heteroborips seriatus (Blandford): Mandelshtam et al., 2019: 392.

Synonyms

Xyleborus orientalis Eggers, 1933b: 54. Mandelshtam, 2006: 324.

Xyleborus todo Kôno, 1938: 71. Smith et al. 2018b: 399.

Xyleborus orientalis kalopanacis Kurentzov, 1941: 187. Knížek, 2011: 249.

Xyleborus orientalis aceris Kurentzov, 1941: 188. Knížek, 2011: 249.

Xyleborus perorientalis Schedl, 1957: 85. Unnecessary replacement name. Knížek, 2011: 249.

Diagnosis

2.5−2.9 mm long (mean = 2.64 mm; n = 5); 2.78−3.0 times as long as wide. This species is distinguished by the distinctive elytral mycangium appearing as a distinctly impressed area immediately adjacent to the scutellum on each elytron, margins flush with elytral suface; and elytral declivity steeply sloping, occupying apical quarter of elytra.

May be confused with

Heteroborips indicus

Distribution

China (Shaanxi, Shanxi, Sichuan), Japan, North Korea, South Korea, Russia (Far East, Kuril Islands); introduced and established in USA (Hoebeke and Rabaglia 2008)

Host plants

polyphagous, attacking both conifers and angiosperms (Hoebeke and Rabaglia 2008)

Remarks

The gallery system is unusual in lying between the bark and wood and not penetrating the wood. The parent female, larvae, and pupae are all found together in communal chambers under the bark (Murayama 1955, Nakashima et al. 1992).

DNA data

Sequences available for COI and CAD.

COI: HM064138

CAD: HM064316