Microperus parvus (Lea), comb. n.

Xylopertha parva Lea, 1894

Coptodryas parva (Lea): Wood and Bright, 1992 Xyleborus liber Eggers, 1923 syn. n.

Coptodryas libra (Eggers): Wood and Bright, 1992 syn. n. Xyleborus pubipennis Schedl,1974a syn. n.

Coptodryas pubipennis (Schedl): Wood and Bright, 1992 syn. n.

Specimens examined. M. parvus: Australia, N. S. Wales (SAM, labeled as unspecified “ type ”, designated lectotype, Hulcr and Cognato, this publication); New Guinea, New Britain (1, Hulcr det. NHMW); New Guinea, Madang Prov. (791, Hulcr det., MSUC), Oro Prov. (17, Hulcr det., MSUC), West Sepik (40 Hulcr det., MSUC). X. liber: New Britain (Neubritannien) (lectotype, USNM); X. pubipennis: Vietnam, Thai-Novyen (paratype, NHMW).

Comments. Lea’s unspecified “ type ” in SAM is designated a lectotype (Australia, N. S. Wales, SAM, labeled as “ type ”). All Microperus synapomorphies are present: antennal club of type 1, obliquely truncated, first corneous segment dominant on both sides; elytral bases setose, notched around scutellar area, scutellum absent; strial punctures in rows, striae with minute pointed recurved spines, especially on declivity; minute, 1.4-1.9 mm long.

Lectotype of C. libra from New Britain is identical to most representatives of M. parvus, especially those from New Guinea. Shared characters include minute hooks on declivity (larger on declivital summit), small elytral hump, and clearly truncated antennal club.

Paratype of C. pubipennis in NHMW is a typical representative of M. parvus . It has antennal club type 1 (truncated, first segment prominent, with semicircular costa), flat elytral disc (not notably convex), row of minute recurved spines in each stria on elytral declivity.