Taxonomic history

Pseudoxyleborus beesoni Eggers, 1930: 207.

Amasa beesoni (Eggers): Wood, 1984: 223.

Diagnosis

5.0 mm long (n = 1); 2.17 times as long as wide. This species can be distinguished from all other species in Southeast Asia by the completely divided eyes. 

May be confused with

Amasa opalescens

Distribution

‘Borneo’, West Malaysia, Myanmar, Thailand

Host plants

The only host records are from the family Sapindaceae (Nephelium, Xerospermum), and the species may have a fixed host association with this family (Browne 1961b).

Remarks

Only Amasa beesoni and the Indomalyan species A. glauca (Sampson) possess completely divided eyes. Amasa beesoni is easily distinguished from A. glauca by the presence of a small tooth on the first interstriae at the top of the elytral declivity, the impressed declivital striae, and densely punctured declivital interstriae.

DNA data

specimens not available for sequencing