Amasa opalescens

Taxonomic history

Xyleborus opalescens Schedl, 1937a: 550.

Amasa opalescens (Schedl): Wood and Bright, 1992: 684.

Diagnosis

4.5−4.8 mm long (4.70 mm long; n = 3); 2.4−2.5 times as long as wide. This species can be distinguished by its large size; pronotumpronotum:
the dorsal surface of the thorax
rounded, robust from laterallateral:
pertaining to the side
view (type 5); declivitaldeclivital:
pertaining to the elytral declivity
interstriae 1 unarmed (lacking granulesgranule:
a small rounded protuberance, like grains of sand
) and flat; strial punctures very large, irregularly spaced; and declivitaldeclivital:
pertaining to the elytral declivity
surface appearing smooth and opalescentopalescent:
iridescent, showing vaying colors
.

May be confused with

Amasa beesoni, A. cylindrotomica, A. schlichii

Distribution

East & West Malaysia, Thailand, Vietnam

Host plants

Recorded only from species of Eugenia and Tristania (Myrtaceae), and possibly with a fixed association with this family (Browne 1961bBrowne 1961b:
Browne FG. 1961b. The biology of Malayan Scolytidae and Platypodidae. Malayan Forest Records 22: 1-255.).

DNA data

specimens not available for sequencing