title: Ecoepidemiology and biology of Eratyrus mucronatus Stål, 1859 (Hemiptera: Reduviidae: Triatominae), a sylvatic vector of Chagas disease in the Brazilian Amazon.
abstract: BACKGROUND
  Eratyrus mucronatus Stål, 1859 is a wild triatomine vector of Trypanosoma cruzi Chagas, 1909. However, little is known regarding the biology and ecoepidemiology of this triatomine in the Brazilian Amazon. The present study describes the biology of E. mucronatus grown under laboratory conditions and the epidemiological aspects of its natural breeding sites.
  
  
  METHODS
  Five colonies were monitored in the field for 3 years. Temperature and humidity measurements were taken in the mornings and afternoons at the natural breeding sites, and the behavior and distribution of the nymphs and adults were observed in the wild colony. We also monitored the life cycle under controlled laboratory conditions.
  
  
  RESULTS
  Some factors that were considered decisive for the establishment of these colonies were present at all of the colonies studied in the field. These factors included an active termite nest, a vertebrate for repast, and dry and shaded substrates with temperatures of 24-28°C and with humidity of 80-90%. A generation was developed in 274 days under these microclimatic conditions in the laboratory.
  
  
  CONCLUSIONS
  The climatic variables described in the field indicate that these environmental parameters have a limiting effect on the dispersal and colonization of E. mucronatus to new environments. In addition, the long period of development to adulthood demonstrates that only one generation can develop per year even under the more favorable laboratory conditions.
authors: Laboratório de Malária e Dengue, Departamento de Ciências da Saúde, Instituto Nacional de Pesquisas da Amazônia, Manaus, AM, Brasil.
authors: Gersonval Leandro Silva
authors: GL
authors: Monte
authors: Laboratório de Malária e Dengue, Departamento de Ciências da Saúde, Instituto Nacional de Pesquisas da Amazônia, Manaus, AM, Brasil.
authors: Wanderli Pedro
authors: WP
authors: Tadei
authors: Laboratório de Malária e Dengue, Departamento de Ciências da Saúde, Instituto Nacional de Pesquisas da Amazônia, Manaus, AM, Brasil.
authors: Thaysa Marinho
authors: TM
authors: Farias
mesh_terms: D000818:Animals; D001938:Brazil; D014355:Chagas Disease / Q000635:transmission; D003672:Defecation / Q000502:physiology; D005247:Feeding Behavior / Q000502:physiology; D005260:Female; D007303:Insect Vectors / Q000145:classification / Q000502:physiology*; D008018:Life Cycle Stages; D008297:Male; D010058:Oviposition / Q000502:physiology; D014225:Triatominae / Q000145:classification / Q000502:physiology*