Approximate locations of the type localities of Haploptychius spp., Perrottetia spp., and Indoartemon spp. in Laos. Described species (●) Haploptychius pellucens, (○) Haploptychius porrectus, (★) Haploptychius blaisei, (△) Perrotettia aquilonaria, (▲) Perrottetia unidentata sp. n., (□) Perrottetia megadentata sp. n. and (■) Indoartemon diodonta sp. n. The numbered localities are detailed in Table 1, except locality no. 6 is from Tam Kao Rao, Vieng Phoukha, Luang Namtha, Laos, and no. 11 from Ban Bo Khoun, Boun Neua, Phongsaly, Laos.