Biosystematic studies on Agromyzidae from India.
The biology and systematics of the Agromyzidae occurring in India are reviewed. Vegetation appears to influence their distribution and they can be divided into 2 groups; genera with Palaearctic affinities dominant during winter months and genera with tropical affinities dominant during summer months. These 2 groups overlap in the Gangetic plains during successive seasons. Many of the species of Cerodontha, Liriomyza, Phytoliriomyza and Chromatomyia occur at high altitudes (above 1000 m). Major pest species include C. horticola, Melanagromyza obtusa, M. sojae and Ophiomyia phaseoli. They attack many legumes and are also pests of turnips and greenhouse crops. The parasitoids of the main pest species are listed. Agromyzid populations are affected by rainfall, wind and cultural practices such as rotation.