Abai, MR

6th International Congress of DipterologyTaxonomy and distribution of Poecilosomella borboroidesspecies group (Diptera, Sphaeroceridae)Hayashi, T.Department of Medical Entomology, National Institute of Infectious Diseases, Toyama 1-23-1, Shinjuku-ku, Tokyo 162-8640, JapanPoecilosomella borboroides was described (as Ephydra borboroides)based on female specimens from Celebes (Sulawesi), Indonesia (typelocality: Makassar = Ujungpandang) in 1860. Thereafter, closely relatedspecies, P. ornata (as Limosina ornata) and P. picturata (as Limosinapicturatus) were described from Indonesia in 1908 and Philippines in 1913respectively, but some authors treated these species as synonyms of P.borboroides for a long time. Papp (2002) reviewed the Oriental species ofthe genus Poecilosomella, and treated P. ornata and P. picturata as distinctspecies. Furthermore, he described 2 more related species, P. borborusfrom Philippines and P. formosana from Taiwan. This species group israther complicated, and it is necessary to revise the former records to makeclear the distribution of each species. I studied the specimens of this groupfrom the Oriental and Australasian Regions. I recognized these 5 speciesand one new species. Poecilosomella borborus is recorded from theAustralasian Region for the first time in this species group. Male ofPoecilosomella borboroides was discovered for the first time fromSulawesi Is. which is the type locality of this species, and redescribed.Poecilosomella borboroides of Papp (2002) was conspecific to P.borborus. The specimen records I examined are as follows:Poecilosomella borboroides: Indonesia (Sulawesi).Poecilosomella borborus: Bangladesh(new record), Indonesia (Java andBali)(new record), Malaysia (Malaya and Borneo) (new record), PapuaNew Guinea (new record), Philippines, Singapore (new record), Taiwan(new record) and Thailand (new record).Poecilosomella formosana: Bangladesh (new record), Indonesia(Java)(new record), Japan (Ryukyu Isls)(new record), Laos (new record),Malaysia (Malaya and Borneo)(new record), Nepal (new record),101