Abstract
The fruitfly fauna of Saitama Prefecture were assessed in taxonomy, biogeography, and species assemblages. A total of 63 species were recognized from Saitama, with additional 433 specimens identified to 54 tephritid species. Seventeen species were recorded from Saitama for the first time. The fauna of the Kanto Mountains with adjacent prefecture (Gunma, Yamanashi, and Tokyo) were reviewed and a total of 90 species were recorded from these areas. Two unidentified species of Acidiella and Philophylla were noted taxonomically. Non-metric Multidimentional Scaling based on presence-absence data of tephritid species in each municipalities of Saitama suggested that species assemblages in western mountain areas of Saitama are partly shared with eastern plain area. A path analysis was used for determining environmental factors influenced species richness among municipalities in different altitudes, population densities, and forest areas. It suggested that some municipalities in the mountain area attracting the collectors have a good number of the localities of the species records.
