Xylosandrus brevis (Eichhoff, 1877)

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

Xylosandrus brevis (Eichhoff, 1877) Fig. 93C, D, J

Xyleborus brevis Eichhoff, 1877: 121.

Xylosandrus brevis (Eichhoff): Browne 1965: 204.

Xyleborus cucullatus Blandford, 1894b: 121. Synonymy: Murayama 1954: 176.

Xyleborus montanus Niisima, 1910: 13. Synonymy: Smith et al. 2018b: 399.

Type material.

Syntypes of Xyleborus montanus should be housed in NIAES but have not been located ( Smith et al. 2018b).

New records.

Taiwan: Nantou, Ren’ai Township, C.-S. Lin, 15.iv.2014 (MSUC, 1).

Diagnosis.

2.75-2.90 mm long (mean = 2.87 mm; n = 5); 2.04-2.07 × as long as wide. This species is distinguished by its moderate size; elytral disc flat, longer than declivity; declivital face steep, abruptly separated from disc; elytra obliquely truncate; posterolateral margins of elytra carinate to interstriae 7; declivital face with four apparent granulate striae (striae 5 short, converging with striae 4 forming a loop); declivital face convex; declivital striae and interstriae setose, setae recumbent, hair-like and equal to the width of an interstria; declivital interstriae granulate, granules multiseriate, confused with erect hair-like setae longer than the width of two interstriae; strial granules small, approximately equal to those of interstriae; pronotum longer than wide, from dorsal view conical frontally (type 6) and lateral view taller (type 2), summit at basal 1/4, basal 1/4 shagreened, dull, densely punctate; and broad, dense mycangial tuft on the pronotal base.

Similar species.

Xylosandrus jaintianus , X. subsimiliformis , X. subsimilis .

Distribution.

China (Xizang, Yunnan), Japan, Korea, Nepal, Taiwan, Thailand.

Host plants.

Polyphagous ( Dole and Cognato 2010).

Figures

Figure 93. Dorsal, lateral and declivital view of Xylosandrus borealis, 2.0 - 2.2 mm (A, B, I), X. brevis, 2.75 - 2.9 mm (C, D, J), X. compactus, 1.5 - 1.9 mm (E, F, K), and X. crassiusculus, 2.3 - 2.9 mm (G, H, L).