Arixyleborus leprosulus Schedl, 1953

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 leprosulus Schedl, 1953 Fig. 26C, D, J

Arixyleborus leprosulus Schedl, 1953b: 300.

Arixyleborus aralidii Nunberg, 1961: 618. Synonymy: Schedl 1962b: 699.

Type material.

Lectotype Arixyleborus leprosulus (NHMW).

Diagnosis.

1.9-2.0 mm long (mean = 1.94 mm; n = 5); 2.38-2.5 × as long as wide. This species is distinguished by the protibiae posterior faces inflated, granulate; antennal club wider than long; posterolateral carina costate to interstriae 7; elytra obliquely truncate, boundary between elytral disc and declivity distinct, declivital face without strial furrows and interstrial ridges; declivital interstriae setose, setae long, hair-like, recumbent, as long as 1.5 strial widths.

Similar species.

Arixyleborus resecans .

Distribution.

Brunei, West Malaysia, Thailand.

Host plants.

Recorded from Dryobalanops and Shorea ( Dipterocarpaceae ), Castanopsis ( Fagaceae ), Palaquium ( Sapotaceae ) ( Browne 1961b), and Aralidium ( Torricelliaceae ) ( Nunberg 1961).

Figures

Figure 26. Dorsal, lateral and declivital view of Arixyleborus hirsutulus, 2.0 mm (A, B, I), A. leprosulus, 1.9 - 2.0 mm (C, D, J), A. malayensis, 2.1 mm (E, F, K), and A. mediosectus, 1.9 - 2.0 mm (G, H, L).