Truncaudum longior (Eggers), comb. n.

Xyleborus longior Eggers, 1923

Cyclorhipidion longius (sic!) (Eggers): Wood and Bright, 1992 Xyleborus canarivorus Browne, 1986, syn. n. Xyleborus protii Browne, 1984, syn. n.

Xyleborus viaticus Schedl, 1974b, syn. n.

Specimens examined. T. longior: New Guinea, Maifluss (lectotype, USNM); New Guinea, Japen (BBM); New Guinea, Madang Province, Baiteta (1, Hulcr det., IRSNB); New Guinea, Madang Prov. (9, Hulcr det., MSUC). X. canarivorus: New Guinea (holotype, BMNH). X. protii: New Guinea, Stony L. A (paratype, BMNH); New Guinea, Stony L. A., Protium (1, Hulcr det., FICB). X. viaticus: New Guinea, Morobe Province, Bulolo (holotype).

Comments. Circumdeclivital costa of T. longior is unusually oblique, not carinate, with only few tubercles confined to the apex. Holotypes of X. canarivorus, X. protii, and X. viaticus are nearly identical to the holotype of T. longior .