Arixyleborus tuberculatus (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 tuberculatus (Eggers, 1940) Fig. 30C, D, H

Xyleboricus tuberculatus Eggers, 1940: 133.

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

Type material.

Paratype (NHMW).

Diagnosis.

1.35-1.5 mm long (mean = 1.42 mm; n = 2); 2.5-2.6 × as long as wide. This species is distinguished by the protibiae posterior faces inflated, granulate; antennal club wider than long; posterolateral carina costate; pronotum lateral margin distinctly costate, nearly carinate; pronotum anterior margin elevated with a row of serrations; declivital interstriae except interstriae 1 denticulate; and minute size.

Similar species.

Arixyleborus grandis , A. malayensis , A. yakushimanus .

Distribution.

Indonesia (Java, Sumatra), Thailand.

Host plants.

Recorded from Dalbergia and Parkia ( Fabaceae ), and from Cinchona ( Rubiaceae ) ( Kalshoven 1959b).

Figures

Figure 30. Dorsal, lateral and declivital view of Arixyleborus titanus holotype, 5.2 mm (A, B, G), A. tuberculatus paratype, 1.35 - 1.5 mm (C, D, H), and A. yakushimanus, 2.0 - 2.2 mm (E, F, I).