rubberwood-destroying beetles in the eastern and gulf areas of thailand (coleoptera: bostrichidae, curculionidae: scolytinae and platypodinae)

Beetles boring in the wood of cut rubber trees (Hevea brasiliensis Muell. Arg.) at sawmills in the eastern region of Thailand and the area around the Gulf of Thailand were investigated. Ten species of powder post beetles in the family Bostrichidae, and eleven species of bark and ambrosia beetles belonging to the curculionid subfamilies Platypodinae and Scolytinae were captured. Sinoxylon unidentatum (F.) and Sinoxylon anale Lesne (Bostrichidae) were the dominant species in air-dried and seasoned rubberwood sawn timber, while Euplatypus parallelus (Fabricius) (Platypodinae) was the dominant species in piled rubberwood logs. Lyctoderma coomani Lesne and Lyctus tomentosus Reitter (Bostrichidae: Lyctinae) are recorded for the first time from Thailand.