Cyclorhipidion circumcisum (Sampson, 1921) Fig. 41A, B, I

Xyleborus circumcisus Sampson, 1921: 30.

Cyclorhipidion circumcisum (Sampson): Wood and Bright 1992: 698.

Xyleborus obtusus Eggers, 1923: 172. Synonymy: Browne 1959: 97.

Xyleborus subobtusus Schedl, 1942a: 192. Synonymy: Beaver 2011: 283.

Type material.

Holotype Xyleborus circumcisus (NHMUK).

Diagnosis.

3.3-3.5 mm long (mean = 3.43 mm; n = 5); 2.54-2.83 × as long as wide. This species is distinguished by the large size; declivity obliquely truncate, strongly shagreened and dull; pronotum longer than wide and basic from dorsal view (type 2); declivital interstriae densely covered in multiseriate rows of tubercles.

Similar species.

Cyclorhipidion amasoides, C. amputatum, C. muticum, C. truncaudinum, C. umbratum, all of which are large and have an obliquely truncate or truncate declivity.

Distribution.

Indonesia (Java, Sumatra), East & West Malaysia, Philippines, Thailand.

Host plants.

The species has a strong preference for Fagaceae ( Castanopsis, Lithocarpus, Quercus) (Browne 1961b). There are single records from Canarium ( Burseraceae), and an unidentified tree of the same family (Browne 1986; Ohno 1990).