The blackflies (Diptera: Simuliidae) of insular Newfoundland. I. Distribution and bionomics

Abstract

An extensive survey was made of the blackflies of insular Newfoundland. Collections from 212 streams contained three genera and 21 species of simuliids, viz., 3 species of Prosimulium, 2 species of Cnephia, and 16 species of Simulium. Simulium croxtoni, S. excisum, and S. gouldingi are new records for the island. Data on the bionomics and seasonal occurrence of the species are also presented.