Black flies (Diptera: Simuliidae) of the Marquesas Islands, French Polynesia: redescriptions and new species

Abstract

All stages of Simulium buissoni Roubaud, 1906 are redescribed. Larvae, pupae, and males of S. gallinum Edwards, 1932 are associated with the female holotype and all are fully described. Simulium adamsoni Edwards, 1932, the males of which have enlarged cerci, gonocoxae fused medially, and an enlarged keel-like ventral plate, is similarly redescribed. The female holotype and two paratypes of S. mumfordi Edwards, 1932 are fully redescribed. Males and females of S. hukaense Séchan, 1983 are associated with the pupae and larvae and described. Since all type material of this species is lost, a neotype is designated. Simulium uaense Séchan, 1983 is briefly mentioned. Three new species are described: S. pichoni Craig, Fossati, and Séchan, S. rivierei Craig, Fossati, and Séchan, and S. sechani Craig and Fossati. Brief comments are made concerning the bionomics and the relationships of the species.