Webbia Hopkins, 1915b: 222.


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

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


1.90−3.40 mm long, 2.6−3.75 times as long as wide. Webbia can be distinguished by the scutellum narrow, minute, convex, and slightly raised above elytra; dense tuft of setae present along elytral base associated with an elytral mycangium; antennal funicle 2-segmented; protibia slender, lateral margin armed with more than 9 denticles, posterior face inflated, unarmed; pronotum conspicuously elongated, rectangular in dorsal aspect, disc flat, anterolateral corners inflated (type a); elytra with few setae, abruptly truncated, and often elaborately ornamented with large projections.

May be confused with

Amasa, Arixyleborus, Cyclorhipidion and Pseudowebbia


throughout the Paleotropics

Gallery system

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


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