Beaverium Hulcr & Cognato, 2009

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

Beaverium Hulcr & Cognato, 2009

Beaverium Hulcr & Cognato, 2009: 25.

Type species.

Xyleborus insulindicus Eggers, 1923; original designation.

Diagnosis.

Large and robust species, 4.1-5.6 mm long, 2.2-2.55 × as long as wide. Beaverium is distinguished by the declivity distinctly flattened and posterolaterally broadened, posterolateral declivital margin costate, terminating at interstriae 5; pronotal disc asperate; pronotum anterior margin with continuously elevated carina; scutellum flat, flush with elytra, mycangial tufts absent, and procoxae contiguous.

Similar genera.

Ambrosiodmus , Fortiborus , Immanus .

Distribution.

Distributed throughout mostly tropical regions of Asia, Australasia, and Oceania.

Gallery system.

This appears to have been described only in B. insulindicus (Eggers, 1923), a species not found in the study region. Based on observations in Fiji, Roberts (1977) notes a short radial gallery, penetrating 2-4 cm, with several longitudinal galleries parallel to the stem axis, all in the same plane, and without enlarged brood chambers.