Arixyleborus minor (Eggers, 1940)

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

Arixyleborus minor (Eggers, 1940) Fig. 27A, B, I

Xyleboricus minor Eggers, 1940: 134.

Arixyleborus minor (Eggers): Schedl 1958c: 145.

Arixyleborus trux Schedl, 1975c: 359. Synonymy: Hulcr and Cognato 2013: 47.

Type material.

Not examined. Potentially housed in Museum Zoologicum Bogoriense, Cibinong, Java, Indonesia ( Hulcr and Cognato 2013).

Diagnosis.

1.2-1.4 mm long (mean = 1.28 mm; n = 5); 3.0-3.5 × as long as wide. This species is distinguished by its minute size; protibiae posterior faces inflated, granulate; antennal club as broad as tall; pronotum lateral margin oblique; pronotum anterior margin without serrations; posterolateral carina acute, carinate; and odd interstriae more strongly elevated than even interstriae.

Similar species.

Arixyleborus suturalis .

Distribution.

Indonesia (Java), East & West Malaysia, New Guinea, Thailand.

Host plants.

Recorded from Dalbergia ( Fabaceae ), Castanea ( Fagaceae ), Dryobalanops and Shorea ( Dipterocarpaceae ), Palaquium ( Sapotaceae ) ( Browne 1961b; Kalshoven 1959b).

Figures

Figure 27. Dorsal, lateral and declivital view of Arixyleborus minor, 1.2 - 1.4 mm (A, B, I), A. moestus paratype, 2.5 - 2.7 mm (C, D, J), A. nudulus holotype, 1.5 - 1.8 mm (E, F, K), and A. phiaoacensis holotype, 2.2 mm (G, H, L).