Diuncus ciliatoformis

Taxonomic history

Xyleborus ciliatoformis Schedl, 1953d: 81.

Diuncus ciliatoformis (Schedl): Hulcr and Cognato, 2009: 32.

Diagnosis

1.65−1.95 mm long (mean = 1.78 mm; n = 5); 2.36−2.62 times as long as wide. This species can be distinguished by the minute size; unarmed declivitydeclivity:
downward slope of either the pronotum or elytra
; moderately impressedimpressed:
a depression in a surface
declivitaldeclivital:
pertaining to the elytral declivity
striae 1; declivitydeclivity:
downward slope of either the pronotum or elytra
densely covered by recumbentrecumbent:
pertaining to setae that are flat against the cuticle
setae on the striaestria:
punctures in rows, which may or may not be impressed to make grooves
and interstriae; and laterallateral:
pertaining to the side
margin of the protibiaprotibia:
tibia of the first pair of legs
armed with four denticlesdenticle:
a small tooth, the sides of which are equal and the tip is above the middle of the base
.

May be confused with

Diuncus justus, Cyclorhipidion spp.

Distribution

China (Chongqing, Guizhou), East & West Malaysia, New Guinea, Taiwan, Thailand

Host plants

recorded from Shorea, Vatica (Dipterocarpaceae) and Lithocarpus (Fagaceae); Browne (1961b) suggests a preference for Dipterocarpaceae

DNA data

Sequences available for CAD.

CAD: OP607234