A Synopsis of the Scolytine Ambrosia Beetles of Thailand (Coleoptera: Curculionidae: Scolytinae) Author Beaver, R. A. rogerbeaver6@gmail.com Author Sittichaya, W. Author Liu, L-Y. text Zootaxa 2014 2014-10-21 3875 1 1 82 journal article 5279 10.11646/zootaxa.3875.1.1 fc3e4322-9765-42c9-9616-da49dd61cfed 1175-5326 5130589 66613335-DA8E-4EE7-A0A4-5FE405B15437 117. Planiculus bicolor (Blandford) Xyleborus bicolor Blandford, 1894a: 113 . Planiculus bicolor (Blandford) : Hulcr & Cognato, 2010: 22 –23 (includes synonyms). Thai distribution: C: Kanchanaburi ; N: Chiang Mai, Phetchabun ; S: Nakhon Sri Thammarat , Surat Thani, Trang ( Beaver 1999 , as Euwallacea bicolor ) New records: Chiang Mai , Doi Chiang Dao WS , Headquarters , 19° 24.278' N , 98° 55.311' E , 491 m , pan trap , 1–3.viii.2007 ( S. Jugsu , A. Watwanich ) (31); as previous except: Nature trail, 19° 24.278' N , 98° 55.311' E , 491 m , pan traps , 30.ix–7.x.2007 ( Songkran & Apichart ) (55); Kanchanaburi , 14 o 42' N . 98 o 52' E , 17.vii.2002 ( A. Cognato ) (4); Nakhon Sri Thammarat , Khao Luang NP , headquarters, 08° 22' 21.6'' N , 99° 44' 14.7'' E , 196 m , EtOH trap , 1.iii.2010 ( W. Sittichaya ) (1); Namtok Yong NP , 8° 10.434' N , 99° 44.508' E , 80 m , MT , 19–26.viii.2008 (U-prai, K.) (2); Phetchabun , Nam Nao NP , 16–17.vii.2005 ( J. Hulcr et al.) (1); Surat Thani , Khao Sok NP , Headquarters, 8° 54.896' N , 98° 31.81' E , 115 m , pan trap , 16–17.x.2008 (Pongphan) (1) . Other distribution: From India through Southeast Asia and Indonesia to Taiwan and Japan in the North, and to New Guinea and the Pacific islands in the East. Intercepted in Japan in imported timber. (4) Taxonomy: As considered by Hulcr and Cognato (2010, 2013), this is a very variable species morphologically, and its limits are not entirely clear. Molecular studies may indicate that several species are included. Biology: Polyphagous. The gallery system has a few branches more or less in one transverse plane with several small brood chambers extending longitudinally. Surface galleries between the phloem and sapwood may occur in thick-barked stems ( Browne 1961a ). Illustrations: P (Hulcr 2013, Hulcr & Cognato 2013 , PaDIL 2014); D ( Maiti & Saha 2004 as Euwallacea bicolor ).