Arixyleborus rugosipes Hopkins, 1915

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 rugosipes Hopkins, 1915 Fig. 28E, F, K

Arixyleborus rugosipes Hopkins, 1915a: 59.

Webbia medius Eggers, 1927b: 104. Synonymy: Schedl 1952d: 162; Beaver and Liu 2010: 22.

Webbia camphorae Eggers, 1936a: 634. Synonymy: Browne 1955: 351; Beaver and Liu 2010: 22.

Type material.

Holotype Arixyleborus rugosipes (NMNH). Holotype, paratypes Webbia camphorae (NHMUK, 2). Lectotype Webbia medius (NMNH), paralectotype (NHMUK, 1).

New records.

Laos: Vientiane, Nan Van Eue, 15.xii.1966, native collector, ex light trap (BPBM, 2).

Diagnosis.

1.7-2.0 mm long (mean = 1.84 mm; n = 5); 2.83-3.33 × as long as wide. This species is distinguished by the protibiae posterior faces inflated, granulate; antennal club wider than long; pronotum lateral margin oblique; pronotum anterior margin without serrations; posterolateral carina acute, denticulate; strial furrows and interstrial ridges anteriorly extending to basal 1/4 of elytral disc; and interstriae densely setose with long hair-like setae and bristles.

Similar species.

Arixyleborus nudulus .

Distribution.

India (Andaman Is), Indonesia (Java, Maluku, Sumatra), Laos*, East & West Malaysia, Philippines, Taiwan, Thailand, Vietnam.

Host plants.

Polyphagous. Browne (1961b) suggests a possible preference for Dipterocarpaceae , but this may simply reflect the abundance of this family in the forests of the region.

Remarks.

Browne (1961b) describes the condition of attacked host material, the gallery system and development of the species.

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).