Cryptoxyleborus Wood & Bright, 1992

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

Cryptoxyleborus Wood & Bright, 1992

Cryptoxyleborus Wood & Bright, 1992: 828.

Cryptoxyleborus Schedl, 1937a: 550. Unavailable name (see Alonso-Zarazaga and Lyal 2009).

Type species.

Cryptoxyleborus naevus Schedl, 1937a; original designation.

Diagnosis.

1.75-4.4 mm, and elongate, 3.0-4.17 × as long as wide, with elytral apex attenuate or acuminate. Cryptoxyleborus is recognized by the distinctive pit mycangia located on the elytra either near the scutellum or along the base (two species without pit mycaniga); scutellum is on the anterior slope and appears absent when viewed dorsally; protibiae slender and rugose on the posterior face; and procoxae contiguous.

Similar genera.

Fraudatrix , Tricosa , Xyleborinus .

Distribution.

Occurring in tropical Asia and New Guinea, possibly introduced to Australia.

Gallery system.

This consists of an unbranched entrance tunnel leading to a single terminal brood chamber in the longitudinal plane ( Browne 1961b). The brood chamber is enlarged by the larvae as they develop.

Remarks.

All species of Cryptoxyleborus with known hosts only attack trees of the family Dipterocarpaceae ( Beaver and Hulcr 2008). Monophyly of Cryptoxyleborus is in question ( Cognato et al. 2020b).