Microperus diversicolor (Eggers, 1923)

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

Microperus diversicolor (Eggers, 1923) Fig. 67A, B, I

Xyleborus diversicolor Eggers, 1923: 202.

Coptodryas diversicolor (Eggers): Wood and Bright 1992: 824.

Microperus diversicolor (Eggers): Hulcr and Cognato 2010a: 19.

Xyleborus myristicae Schedl, 1939b: 49. Synonymy: Hulcr and Cognato 2010a: 19.

Xyleborus theae Eggers, 1940: 144. Synonymy: Wood 1989: 171.

Xyleborus brevipilosus Eggers, 1940: 145. Synonymy: Kalshoven 1959a: 95.

Xyleborus cylindripennis Schedl, 1954a: 152. Synonymy: Wood 1989: 171.

Xyleborus atavus Schedl, 1979b: 104. Synonymy: Hulcr and Cognato 2010a: 19.

Type material.

Lectotype Xyleborus myristicae (NHMW).

Diagnosis.

1.6-1.8 mm long (mean = 1.68 mm; n = 5); 2.57-2.83 × as long as wide. This species is distinguished by the declivital interstriae sparsely covered with short erect bristle-like setae; elytral disc medially convex, appearing humped; antennal club type 3 with two sutures visible on posterior face; declivity short, steep; all declivital interstriae uniformly granulate from base to apex; declivital face convex; and posterolateral costa carinate.

Similar species.

Microperus kadoyamaensis , M. minax .

Distribution.

Indonesia (Java, Sumatra), East & West Malaysia, New Guinea, Philippines, Solomon Islands, Thailand.

Host plants.

Polyphagous ( Browne 1961b).

Figures

Figure 67. Dorsal, lateral and declivital view of Microperus diversicolor, 1.6 - 1.8 mm (A, B, I), M. fulvulus lectotype, 2.8 - 2.95 mm (C, D, J), M. kadoyamaensis, 1.8 - 2.0 mm (E, F, K), and M. kirishimanus, 1.6 - 1.8 mm (G, H, L).