Abstract
Seasonal occurrence of adult phorid flies was studied in and near Tokyo from 1990 to 1992 using traps baited with pork. The collected 20 species were categorized into 6 types. Megaselia sp.1 was collected chiefly in early spring and late autumn (Type I). Three species, Anevrina unispinosa, Hypocera anularia and Plethysmochaeta nobilis, were collected chiefly in mid and late spring (Type II). Conicera sp., Diplonevra abbreviata and Woodiphora sp. were collected in summer (Type III). Two domestic species, Megaselia scalaris and M. spiracularis, were collected from summer to autumn (Type IV). Gymnophora pararcuata was collected only in October (Type V). The remaining 10 species, Conicera formosensis, Diplonevra peregrina, Dohrniphora cornuta, Megaselia deningi, M. sp.2, Puliciphora obtecta, P. tokyoensis, Spiniphora atricostata, Triphleba nipponica and Woodiphora kuenburgi, were collected from spring to autumn constantly (Type VI).
