New or rare Madagascar tiger beetles-23. Physodeutera (Toxoma) lokobensis sp. nov., a new species close to Ph. (T.) conturbata Moravec, Ph. (T.) sulcoprothoracica (W. Horn) and Ph. (T.) dubia (Maran), with revised type designation of the latter (Coleoptera: Cicindelidae)

Physodeutera (Toxoma) lokobensis sp. nov. is described as new to science from the island of Nosy Be, northern Madagascar (phytogeographically Sambirano). The new species is morphologically similar and obviously close to Physodeutera (T.) conturbata Moravec, 2002, Ph. (T.) sulcoprothoracica (W. Horn, 1913), and Ph. (T.) dubia (Maran, 1942). Redescriptions and new illustrations of the type specimens of the three similar species with references to their original descriptions and redescriptions with illustrations in the monograph of the genus Physodeutera Lacordaire, 1842 (Moravec 2002a) are presented. The type designation of Ph. (T.) dubia has been revised to rectify the misinterpreted designation in the monograph. A revised key to the subgenus Toxoma Rivalier, 1967 and essential maps of the distribution are also given.