Xyleborus insidiosus Cognato & Smith, 2019

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

Xyleborus insidiosus Cognato & Smith, 2019 Fig. 89E, F, K

Xyleborus insidiosus Cognato & Smith, 2019, (in Cognato et al. 2019): 1280.

Type material.

Holotype (MSUC), paratypes (IZAS, 1; MSUC, 4; NHMUK, 1; NMNH, 3).

Diagnosis.

2.7-2.8 mm long (mean = 2.74 mm; n = 5); 3.0-3.5 × as long as wide. This species is distinguished by declivital interstriae 1 laterally broadened from base to declivital midpoint then narrowing towards apex; large body size; broad discal interstriae, 4 × the width of discal striae; discal strial punctures 3 × the diameter of those of interstriae; declivital striae and interstriae clearly distinguishable, striae clearly impressed; interstriae uniformly granulate, never denticulate; anterior 1/2 of pronotum strongly shagreened; and declivital posterolateral margin carinate to interstriae 6.

Similar species.

Xyleborus glabratus , X. mysticulus .

Distribution.

China (Sichuan), Vietnam.

Host plants.

This species has been collected from Fagaceae as well as unidentified punky wood ( Cognato et al. 2019).

Figures

Figure 89. Dorsal, lateral and declivital view of Xyleborus festivus, 3.6 - 3.9 mm (A, B, I), X. glabratus, 2.2 - 2.5 mm (C, D, J), X. insidiosus holotype (E, F, K), and X. muticus holotype, 3.0 - 3.1 mm (G, H, L).