Debus adusticollis (Motschulsky, 1863)

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

Debus adusticollis (Motschulsky, 1863) Fig. 47A, B, I

Tomicus adusticollis Motschulsky, 1863: 514.

Debus adusticollis (Motschulsky): Hulcr and Cognato 2010a: 14.

Xyleborus vestitus Schedl, 1931: 341. Synonymy: Wood 1989: 176.

Type material.

Holotype (ZMMU). Not examined.

New records.

Laos: Vientiane, Ban Van Eue, 15.ii.1966, native collector, ex malaise trap (BPBM, 2).

Diagnosis.

2.2-2.7 mm (mean = 2.52 mm; n = 5); 3.57-3.85 × as long as wide. This species is distinguished by the elytral apex entire, never explanate, appearing flat and broad; declivital sulcus deep; and small size.

Similar species.

Debus detritus , D. pumilus .

Distribution.

Brunei, China (Yunnan), Indonesia (Java), Laos*, East & West Malaysia, Philippines, Sri Lanka, Thailand.

Host plants.

Polyphagous ( Browne 1961b).

Figures

Figure 47. Dorsal, lateral and declivital view of Debus adusticollis, 2.2 - 2.7 mm (A, B, I), D. amphicranoides, 3.3 - 5.4 mm (C, D, J), D. birmanus paratype, 3.7 - 3.9 mm (E, F, K), and D. detritus holotype, 3.9 - 4.6 mm (G, H, L).