Description of Larva and Pupa of Psorophora and Redescription of the Adult Female and Male

Psorophora (Grabhamia) dimidiata Cerqueira (1943) was described based on the adult female and male. Later, descriptions of the male and female genitalia were published by Lane (in Neotropical Culicidae, vols. I & II. Editora da Universidade de Sao Paulo, S. R, Brazil, 1953) and Guedes et al. (in Catalogo ilustrado dos mosquitos da colegao do Instituto Nacional de Endemias Rurais. I. Genero Psorophora Robineau-Desvoidy, 1827. Rev. Bras. Malariol. Doencas Trop. 12: 3-24; 1965), respectively. Here we describe the pupa and fourth-instar larva and redescribe the adult male and female genitalia and female cibarium. All stages (except the egg) are illustrated. Unambiguous recognition is provided. Distinctions from Ps. cingulata (Fabricius) and possible phylogenetic relationships are discussed. Keywords: Psorophora, Grabhamia, unknown immature stage, taxonomy