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Rhodnius pallescens (Barber, 1932)
Rhodnius pallescens (Barber, 1932)
Distribution:
Distribution:
In tropical rain forest:Belize Colombia (Bolivar, Sucre) Costa Rica (Alajuela, Limon)Nicaragua (Rio San Juan)Panama (Bocas del Toro, Colon, Darien, Panama)Venezuela (Amazon)?
Characteristics:
Characteristics:
- 21.5-23.5 mm
- general color yellowish brown with dark brown spots, in many cases dotted with lighter
- head longer than pronotum (without the apical process)
- anteocular region more than 3 times as long as postocular in dorsal view
- rectangular spots of dorsal connexival plates diffuse
- femora yellowish, mottled with dark brown
- hemelytra straw-colored, clouded with darker, some of the dark areas dotted with lighter color
Biology:
Biology:
- vector of Chagas disease in Central America
- in hollow trees, near resting places of opossums and sloths, nest of Psitasidae
- in burrows and caves of Dasypodidae
- in palm tree (Attalea butyracea, Coccus nucifera, Copernicia tectorum, Jessenea batava, Elaeis oleifera)
- feeding sources: Didelphis marsupialis, Bradypodidae. Rodents: Nyctomys sumichrasti, Calluromys derbianus, Proechimys semispinosus. Sciuridae. Tamandua tetradactyla, Cebus capucinus, Choloepus hoffmanni. Armadillos, opossums, humans.
- attracted to light
- infected with T. cruzi and T. rangeli
- highly competent vector
BIBLIOGRAPHY
BIBLIOGRAPHY
Arboleda S, Gorla DE, Porcasi X, Saldaña A, Calzada J, Jaramillo-O N. 2009. Development of a geographical distribution model of Rhodnius pallescens Barber, 1932 using environmental data recorded by remote sensing. Infection, Genetics and Evolution, 9(4): 441-448.
Christensen HA, de vasquez AM. 1981. Host feeding profiles of Rhodnius pallescens (Hemiptera: Reduviidae) in rural villages of Central Panama. Am J Trop Med Hyg, 30(1): 278-283.
Carcavallo RU, Galindez Giron, I, Jurberg, J & Lent H. 1998. Atlas of Chagas’ disease vectors in the Americas. Vol I, II, III. FioCruz Edition.
Dujardin JP, Schofield CJ & Panzera F. 2000. Les vecteurs de la maladie de Chagas. Recherches taxonomiques, biologiques et génétiques. Académie Royales des Sciences d'Outre-Mer.
Galvão C, Carcavallo R, Da Silva Rocha D & Jurberg J. 2003. A checklist of the current valid species of the subfamily Triatominae Jeannel, 1919 (Hemiptera, Reduviidae) and their geographical distribution, with nomenclatural and taxonomic notes. Zootaxa, 202: 1-36.
Lent H & Wygodzinsky P. 1979. Revision of the Triatominae (Hemiptera, Reduviidae), and their significance as vectors of Chagas disease. Bull. American Mus. Nat. Hist. 163 (Art. 3): 125-520.
Pineda V, Montalvo E, Alvarez D, Santamaria AM, calzada JE, Saldana A. 2008. Feeding sources and Trypanosome infection index of Rhodnius pallescens in a Chagas disease endemic area or Amador County, Panama. Rev Inst Med Trop São Paulo, 50(2): 113-116.
Pizarro Novoa JC, Romaña C. 1998. Variación estacional de una población silvestre de Rhodnius pallescens Barber 1932 (Heteroptera: Triatominae) en la costa caribe colombiana. Bull Inst fr études andines, 27(2): 309-325 (PDF).
Soto Vivas A. 2009. Clave pictórica de triatominos (Hemiptera: Triatominae) de Venezuela. Boletin de Malariologia y Salud Ambiental, XLIX(2): 259-274.
Zeledon R, Marin F, Calvo N, Lugo E, Valle S. 2006. Distribution and ecological aspects of Rhodnius pallescens in Costa Rica and Nicaragua and their epidemiological implications. Mem Inst Oswaldo Cruz, 101(1): 75-79 (PDF).
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