Research on the mosquitoes of Portugal (Diptera, Culicidae). XI - The mosquitoes of the Beiras.
The results of a mosquito survey of the Beiras, Portugal, are presented, based on the examination of some 18 000 specimens (3400 adults, 13 300 larvae, 1300 pupae and a few egg batches) collected during May 1976-April 1984. Besides much new distributional data, 7 species and subspecies are recorded from the Beiras for the first time: Anopheles claviger, A. petragnanii, Aedes vexans vexans, Culex univittatus, C. hortensis hortensis, C. impudicus and C. territans. With the addition of these taxa, the list of mosquitoes of the Beiras comprises 26 members. Under each species, the material examined is indicated together with remarks on its geographical distribution, bionomics and medical importance. An abundance index is given, and the zoogeography and species diversity of the mosquitoes of the Beiras are briefly considered.