New host plant and distribution records in Mexico for Anastrepha spp., Toxotrypana curvicauda Gerstacker, Rhagoletis zoqui Bush, Rhagoletis sp., and Hexachaeta sp (Diptera : Tephritidae)

We report the results of a nine-year study (1990-1998), aimed at determinin g the distribution of fruit flies (Diptera: Tephritidae) and identify their host plants in Veracruz, Mexico. Twenty Anastrepha species, Toxotrypana cu rvicauda and several unidentified Hexachaeta species were captured in McPha il traps. Among the 20 Anastrepha species, A. limae, A. dentata, and A, can alis are new records for Veracruz, Out of a total of 51 species of native, wild plants and exotic, cultivated plants collected in Veracruz, Mexico (re presenting 3,736 kg of fruit), 34 were infested by 13 Anastrepha species, 4 plants were infested by 4 Rhagoletis species, 2 plants were infested by To xotrypana curvicauda, and one by an undescribed Hexachaeta species. Our obs ervations include new host plant records for Anastrepha hamata (larvae feed only on seeds), A. bahiensis, A. chiclayae, A. fraterculus, A. obliqua, T. curvicauda, Rhagoletis zoqui, R. sp. and Hexachaeta sp. We present host pl ant data based on size of fruit and degree of infestation, provide informat ion on local names and fruiting phenology, and discuss our findings in ligh t of their practical implications and with respect to the zoogeography of M exican fruit flies.