title: Biting activity patterns of Culex (Melanoconion) ribeirensis in southern Brazil.
abstract: The biting activity of Culex ribeirensis was studied in the highland region of Southern Brazil and compared with data previously obtained in a lowland area of the same region. Hourly sampling with human bait showed a bimodal pattern, with a greater peak in the evening crepuscular period. Behavior was similar in both the highland area of Lupo Farm and the lowland of the Ribeira Valley but with a notable feature in the former. In relation to the vespertine crepuscular period, precrepuscular peaks were observed in the highland area. The adaptability of this species to man-made environments and its epidemiological significance are considered.
authors.affiliation: Department of Epidemiology, School of Public Health, University of São Paulo, Brazil.
authors.forename: O P
authors.initials: OP
authors.lastname: Forattini
authors.forename: A de C
authors.initials: Ade C
authors.lastname: Gomes
mesh_terms: D000818:Animals; D001938:Brazil; D003465:Culex / Q000502:physiology*; D006801:Humans; D007299:Insect Bites and Stings; D012621:Seasons