Cyclorhipidion umbratum (Eggers, 1941) Fig. 46A, B, I

Xyleborus umbratus Eggers, 1941b: 223.

Cyclorhipidion umbratum (Eggers): Wood and Bright 1992: 704.

Type material.

Holotype (ZMFK).

New records.

China: Fujian, Jianyang, 2.v.1978, Fusheng Huang, ex Lithocarpus dealbatus (NMNH, 3).

Diagnosis.

3.8-4.1 mm long (mean = 4.0 mm; n = 4); 2.53-2.86 × as long as wide. This species is distinguished by the large size; truncate declivity surrounded by a granulate circumdeclivital costa; pronotum subquadrate from dorsal view (type 3); declivital interstrial punctures replaced by a single row of tubercles; declivital strial punctures large, distinct; declivital face with three striae, feebly sulcate on basal 1/4, surface smooth; and declivital striae clearly, uniformly impressed; and interstriae inflated.

Similar species.

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

Distribution.

China (Fujian).

Host plants.

This species is only known from Lithocarpus ( Fagaceae).