Taxonomic history

Webbia biformis Browne, 1958: 496. 

Diagnosis

2.4−3.0 mm long (mean = 2.67 mm; n = 3); 3.43−3.75 times as long as wide. This species is distinguished by the circumdeclivital margin denticulate; declivital face bearing a large triangular spine that is as much broader at apex than base; base of spine elongate, occupying approximately a third of declivital length; acute spine at elytral apex arising from the sutural interstriae; and discal interstriae 1 denticulate, never prolonged into a short spine over the declivity.

May be confused with

Webbia diversicauda and W. pabo

Distribution

East & West Malaysia, Thailand

Host plants

associated with Dipterocarpaceae (Dipterocarpus, Hopea, Shorea) (Browne 1961b, Beaver and Browne 1975, 1979)

Remarks

Brood size can be as high as 120 in a gallery (Beaver and Browne 1978).

DNA data

specimens not available for sequencing