Heteroborips seriatus (Blandford, 1894)

Smith, Sarah M., Beaver, Roger A. & Cognato, Anthony I., 2020, A monograph of the Xyleborini (Coleoptera, Curculionidae, Scolytinae) of the Indochinese Peninsula (except Malaysia) and China, ZooKeys 983, pp. 1-442 : 1

Heteroborips seriatus (Blandford, 1894) Fig. 63E, F, K

Xyleborus seriatus Blandford, 1894b: 111.

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

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

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

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

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

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

Type material.

Holotype Xyleborus orientalis (NMNH). Syntypes Xyleborus seriatus (NHMUK).

Diagnosis.

2.5-2.9 mm long (mean = 2.64 mm; n = 5); 2.78-3.0 × as long as wide. This species is distinguished by the unique elytral mycangium appearing as a distinctly impressed area immediately adjacent to the scutellum on each elytron; and declivity steeply sloping, occupying apical 1/4.

Similar species.

Heteroborips cryptographus , which is distributed from Europe to the Russian Far East, and H. indicus .

Distribution.

China (Shaanxi, Shanxi, Sichuan), Japan, South & North Korea, Russia (Far East, Kuril Is). 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).

Figures

Figure 63. Dorsal, lateral and declivital view of Heteroborips fastigatus holotype, 3.4 - 3.5 mm (A, B, I), H. indicus holotype, 2.2 - 2.4 mm (C, D, J), H. seriatus, 2.5 - 2.9 mm (E, F, K), and H. tristis, 3.9 - 4.0 mm (G, H, L).