Abai, MR

6th International Congress of DipterologyThese results show evidence for parallel evolution in proboscis length andare consistent with the hypothesis of local adaptation to floral resources.Key Words: Tabanidae, Philoliche, convergent evolution, pollination∗∗∗∗∗∗∗∗∗∗Behavioral Diversity of Oestroidea Maggots on Rotten FleshMurayama, S.Course in Biodiversity Science, Division of Biosphere Science, Graduate School ofEnvironmental Science Faculty of Environmental Earth Science, Hokkaido University,Kitaku, Sapporo 060-0819, JapanThe behavior of Oestroid fly larvae was compared. Larvae ofCyclorrhapha are usually considered to have a simple life, only eatingdigested flesh externally and crawling randomly on food. But someremarkable behavioral differences between species have been observed.Oestroidea larvae are generally grouped into aggregative species andsolitary species. Most Salcophagid maggots are solitary, and manyCalliphorid maggots are aggregative. In some species of aggregativemaggots, masses of maggots are formed separately from food, althoughalmost all species form masses near or inside foods. In such species, forexample Lucilia illustris, larvae goes back and forth between the feedingsite and maggot mass site. Aggregative maggots of some Calliphorid flyspecies can not easily grow into adults in small populations or solitarily,and this feature is remarkable considering that these species form massesseparately from feeding sites. In addition, some solitary maggots showaggressive behavior. These behavioral features appear to be correlativewith morphological characters and phylogeny. It is believed that thesebehaviors are necessary to form an insect community on carrion.Key Words: Calliphoridae, Sarcophagidae, carrion, maggot mass, behavior171