63. Cryptoxyleborus simplex Browne

(Figs 19–20)

Cryptoxyleborus simplex Browne, 1949: 902 .

Thai distribution: N: Chiang Mai (Beaver & Hulcr 2008); N-E: Ubon Ratchatani; S: Nakhon Sri Thammarat.

New records: Nakhon Sri Thammarat, Chang Klang Distr., 08° 21' 33.7'' N, 99° 39' 02.9'' E, 60 m, durian plantation, EtOH trap, 1.i.2010 (W. Sittichaya) (1); Ubon Ratchatani, Pha Taem NP, 15° 27.336' N, 105° 34.87' E, 232 m, wild flower field, MT, 18–25.xi.2006 (Sorawit & Thongdee) (1) .

Other distribution: Brunei Darussalam, Indonesia (Sumatera), Malaysia (E. & W.). (3)

Biology: Like all species of Cryptoxyleborus with known host trees, the species attacks only trees of the family Dipterocarpaceae (Beaver & Hulcr 2008) . The gallery system consists of an unbranched entrance tunnel leading to a single terminal brood chamber enlarged in the longitudinal plane (Browne 1961a).