101. Fortiborus major (Stebbing) *

Xyleborus major Stebbing, 1914: 590 .

Fortiborus major (Stebbing): Hulcr & Cognato, 2010: 17.

Xyleborus siclus Schedl, 1936b: 26 . Synonymy: Hulcr & Cognato, 2010: 18.

Thai distribution: S: Phangnga. New to Thailand.

New record: Phangnga, Takuapa distr., 10km N Khao Lak, Ton Chongfa waterfall, 8 o 38.722' N, 98 o 17.027' E, 29.viii.2010 (A. Skale) (1) .

Other distribution: India (Andaman Is., Assam, W. Bengal), Indonesia (Sumatera), Malaysia (E. & W.), Myanmar, Papua New Guinea. Intercepted in Japan in timber imported from the region. (4)

Taxonomy: This species was designated as the type species of their new genus Fortiborus by Hulcr and Cognato (2010).

Biology: Closely associated with Dipterocarpaceae (Browne 1961a) . There are records of single specimens taken from three other families (Ohno 1990), but they may not have been breeding. The regularly branched gallery system lies in one transverse plane and is without brood chambers. The larvae pupate at the ends of the galleries (Browne 1961a).

Illustrations: P (Hulcr 2013); D (Nunberg 1959, Maiti & Saha as Xyleborus major).