131. Webbia biformis Browne

(Figs 29–30)

Webbia biformis Browne, 1958: 496 .

Thai distribution: N: Chiang Mai (Beaver & Browne, 1975); S: [unspecified southern province] (Sittichaya et al. 2012), Chumphon.

New records: Chumphon, Sawi distr., 10° 16 '55.0'' N, 99° 01' 17.2'' E, 67 m, durian plantation, EtOH trap, 31.iii.2010 (W. Sittichaya) (1); Thung Tako Distr., 10° 0 7 ' 30.0'' N, 99° 03' 48.0'' E, 23 m,durian plantation, EtOH trap, 1.v.2010 (W. Sittichaya) (1) .

Other distribution: Malaysia (E. & W.). (3)

Biology: Associated with Dipterocarpaceae, like the majority of Webbia Hopkins. The gallery system, as in all species of Webbia, consists of a radial entrance tunnel leading to a narrow brood chamber in the longitudinal plane, in which the larvae develop. Brood size can be as high as 120 in a gallery (Beaver & Browne 1979).