Abai, MR

6th International Congress of DipterologyMuscidae (Diptera) from Madagascar: identification keys,descriptions of new species, and new recordsCouri, M.S. (1), A.C. Pont (2) & N.D. Penny (3)(1) Systematic and Biology Laboratory, Department of Entomology, Museu Nacional,Universidade Federal do Rio de Janeiro, Quinta da Boa Vista, 20940-040 Rio deJaneiro, RJ, Brazil(2) Oxford University Museum of Natural History, Parks Road, Oxford OX1 3PW, U.K(3) Department of Entomology, California Academy of Sciences, 875 Howard Street, SanFrancisco, California 94103The Madagascan Muscidae fauna is known only from scatteredpublications by a variety of authors, containing mainly descriptions of newspecies. Previous records of Madagascan muscids amount to 78 species in27 genera (Pont 1980). The present study of the Muscidae collected by the“Madagascar Arthropod Biodiversity Project”, developed by the CaliforniaAcademy of Sciences, San Francisco, California, has provided the stimulusfor this paper in which all the genera and species recorded fromMadagascar are keyed, 23 new species are described, and 7 species and 3genera are newly recorded from Madagascar. Almost 80% of thepreviously known Madagascan muscid fauna has been recognised amongthe material studied. Replacement names are given for two homonyms:Dichaetomyia zielkei new name (for Dichaetomyia apicalis Zielke, 1972,preocc.) and Dichaetomyia frontata new name (for Dichaetomyia frontalisZielke, 1972, preocc.). One new synonym is established: Dichaetomyiarangeri Zielke, 1973 (syn: Dichaetomyia scutellaris Zielke, 1974). Thespecies newly recorded from Madagascar are: Atherigona (Acritochaeta)orientalis Schiner, 1868; Atherigona (Atherigona) addita Malloch, 1923;Brontaea flexa (Wiedemann, 1830); Dichaetomyia (Dichaetomyia)albivitta (Stein, 1906); Helina lucida (Stein, 1913); Lispe niveimaculataStein, 1906 and Lispocephala pectinata (Stein, 1900). The genera newlyrecorded from Madagascar are: Azelia Robineau-Desvoidy, PhaoniaRobineau-Desvoidy and Spilogona Schnabl. Eggs of the genus StylogasterMacquart (Diptera, Conopidae) were found impaled mainly in the eyes,mesonotum and abdomen of a few specimens (Couri and Pont, in press).48