Xyleborinus exiguus (Walker)

Beaver, R. A., Sittichaya, W. & Liu, L-Y., 2014, A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae), Zootaxa 3875 (1), pp. 1-82 : 64-65

140. Xyleborinus exiguus (Walker)

Bostrichus exiguus Walker, 1859: 260 .

Xyleborinus exiguus (Walker) : Maiti & Saha, 1986: 109.

Xyleborus perexiguus Schedl, 1971: 381 . Synonymy: Hulcr & Cognato, 2013: 142.

Thai distribution: C: Chantaburi, Kanchanaburi, Phitsanulok ; N: Chiang Mai ( Beaver & Browne 1975 as Xyleborus exiguus ), Phetchabun, Tak ; N-E: Loei, Nakhon Ratchasima, Sakhon Nakhon; S: Chumphon ( Sittichaya & Beaver 2009), Nakhon Sri Thammarat , Ranong ( Murphy & Meepol 1990) , Surat Thani .

New records: More than 1720 specimens collected in all regions of the country, the great majority (1689) in durian ( Durio zibethinus ) (Bombacaeae) orchards in southern Thailand using traps baited with ethyl alcohol ( Sittichaya et al. 2012).

Other distribution: From India and Sri Lanka through Southeast Asia and Indonesia to New Guinea, Australia and the Pacific islands. Also present in West Africa, and introduced into Central America. (5)

Biology: Polyphagous ( Browne 1961a). The gallery system resembles that of X.andrewesi (see above). Kalshoven (1959) gives details of brood sizes in various hosts in relation to the size of the brood chamber.

Illustrations: P (Hulcr 2013, Hulcr & Cognato 2013, PaDIL 2014); D ( Maiti & Saha 2004).