Resin bees of genus Megachile , subgenera Callomegachile and Carinula (Hymenoptera, Megachilidae) from Thailand with description of a new species

Resin bees of the genus Megachile subgenus Callomegachile sensu lato (Hymenoptera; Megachilidae) from Thailand are reviewed. The 14 species treated include those described or revised in the subgenus Alocanthedon, a junior synonym of (three species), and in (one species). One new species is described, Chatthanabun and Warrit, The replacement name Chatthanabun, Warrit and Ascher, , is proposed for Wu (not Schrottky), which is recorded for the first time outside China. For each species, maps and full label data for the examined material documenting occurrences in Thailand are provided. In addition, global ranges, floral associations, and other life history data are summarized and a key to the Thai species is provided for females.