Abai, MR

6th International Congress of DipterologyPhylogeny and biogeography of Philornis Meinert (Diptera,Muscidae)Couri, M.S. (1), C.J.B. de Carvalho (2) & P. Löwenberg-Neto (2)(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) Biodiversity and Biogeography Laboratory, Department of Zoology, UniversidadeFederal do Paraná, Curitiba, 81.531-980, BrazilForty-one species of Philornis were analyzed with 64 characters and sixoutgroups. Passeromyia Rodhain & Villeneuve, an Old World genus thatshows the same range of association with birds as Philornis, was one genusused as outgroup, and appears in this analysis as its sister-group. Six mostparsimonious cladograms (243 steps in length; ci=30; ri=69) wereproduced. According to the analysis the genus Philornis is supported bythe synapomorphies: acrostichal post-sutural setae not developed; only thepre-scutellar pair of acrostichal post-sutural setae developed and cilia atanepimeron present. The resulting phylogenetic hypothesis (strictconsensus) divides the genus into two clades: the most basal onecorresponds to the “aitkeni- group” of the authors. The second clade isagain divided into two others, the first one supported by the homoplasies:cheek hairs brown; cilia at anepimeron black on superior half and yellowon inferior and proepimeral hairs yellow. This group corresponds to“falsifica-group” of the authors, and more data on the biology of thespecies will clarify and/or confirm their relations. Philornis downsi Dodge& Aitken is the sister group of all restant Philornis species. This thirdgroup corresponds to “angustifrons-group”, defined in this analysis by thesynapomorphies: concave shape of posterior end of puparium and by themedian width of female frons. These “traditional” groups, the relationsamong the species and the evolutionary trends are discussed. Forbiogeographic purposes, panbiogeographic methodology was performed tohypothesize primary biogeographic homology and the cladistics resultswere employed to test and support the analysis. The coincidence of two ormore individual tracks resulted in six generalized tracks which occurred46