Webbia 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

Webbia Hopkins, 1915

Webbia Hopkins, 1915b: 222.

Xelyborus Schedl, 1939a: 349. Synonymy: Browne 1963: 57.

Prowebbia Browne, 1962: 208. Synonymy: Browne 1972: 25.

Type species.

Webbia dipterocarpi Hopkins, 1915b; original designation.

Diagnosis.

1.9-3.4 mm long, 2.6-3.75 × as long as wide. Webbia is distinguished by the scutellum not apparent; dense tuft of setae present along elytral base associated with an elytral mycangium; antennal funicle 2-segmented; protibiae slender, outer margin armed with more than nine denticles, posterior face inflated and unarmed; pronotum conspicuously elongated, rectangular in dorsal aspect, disc flat, anterolateral corners inflated (type a in dorsal view); elytra with few setae, abruptly truncated and often elaborately ornamented with large projections.

Similar genera.

Amasa , Arixyleborus , Cyclorhipidion , Pseudowebbia .

Distribution.

Throughout the Paleotropics.

Gallery system.

The unbranched radial entrance tunnel leads to a single large brood chamber in the longitudinal plane ( Browne 1961b).

Remarks.

The majority of species are strongly associated with Dipterocarpaceae , but single species are specialized on Fagaceae and Sapotaceae ( Browne 1961b).