Arixyleborus scabripennis (Blandford, 1896)

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

Arixyleborus scabripennis (Blandford, 1896) Fig. 28G, H, L

Xyleborus scabripennis Blandford, 1896b: 216.

Arixyleborus scabripennis (Blandford): Browne 1955: 351.

Type material.

Holotype (NHMUK).

New records.

Vietnam: Thua Thien-Hue, Bach Ma N.P., 16.20089, 107.84824, 919 m, 16.ii.2017, VN67, A.I. Cognato, T.A. Hoang, ex 2 cm dia; 8 cm diameter branch (MSUC, 1); as previous except: 16.22897, 107.85349, 415 m, 15.ii.2017, VN55, ex FIT (MSUC, 1).

Diagnosis.

2.5-2.55 mm long (mean = 2.51 mm; n = 4); 2.27-2.55 × as long as wide. This species is distinguished by the protibiae posterior faces flat, unarmed; antennal club as broad as tall; posterolateral carina oblique, granulate; elytral disc flat, without a transverse depression; elytral striae weakly impressed; elytral interstriae with one row of dominant tubercles.

Similar species.

Arixyleborus moestus , A. puberulus , A. setosus .

Distribution.

Indonesia (Java, Maluku, Sumatra), East & West Malaysia, New Guinea, Sri Lanka, Thailand, Vietnam*.

Host plants.

Polyphagous ( Browne 1961b).

Remarks.

Browne (1961b) gives some details of brood sizes and development.

Figures

Figure 28. Dorsal, lateral and declivital view of Arixyleborus puberulus, 2.6 - 2.9 mm (A, B, I), A. resecans paratype, 3.0 mm (C, D, J), A. rugosipes, 1.7 - 2.0 mm (E, F, K), and A. scabripennis, 2.5 - 2.55 mm (G, H, L).