Microperus pometianus (Schedl, 1939)

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 pometianus (Schedl, 1939) Fig. 69C, D, J

Xyleborus pometianus Schedl, 1939a: 354.

Microperus pometianus (Schedl): Hulcr and Cognato 2010a: 21.

Type material.

Lectotype (NHMW).

Diagnosis.

1.2-1.7 mm long (mean = 1.44 mm; n = 5); 2.6-3.0 × as long as wide. This species is distinguished by the elytral disc flat; declivity short, steep; declivity granulate from base to apex, granules small, as abundant as strial punctures; granules dispersed, separated by the width of at least three granules; declivital surface shagreened; interstriae moderately setose, setae short semi-erect bristles, less than the width of an interstria; striae glabrous; and minute size.

Similar species.

Microperus quercicola .

Distribution.

East & West Malaysia, New Guinea, Philippines, Thailand.

Host plants.

Recorded from Nephelium , Pometia , Xerospermum ( Sapindaceae ), and an unidentified genus of Burseraceae ( Schedl 1942a; Browne 1961b). An association with Sapindaceae is suggested by Browne (1961b), but there are too few records to be sure of this.

Figures

Figure 69. Dorsal, lateral and declivital view of Microperus perparvus, 1.5 - 1.9 mm (A, B, I), M. pometianus, 1.2 - 1.7 mm (C, D, J), M. quercicola, 1.8 - 2.0 mm (E, F, K), and M. recidens, 1.9 - 2.0 mm (G, H, L).