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).