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.