Memórias do Instituto Oswaldo Cruz (1997) 92, 143-149

Arnaldo Maciá (1997)
Age structure of adult mosquito (Diptera: Culicidae) populations from Buenos Aires Province, Argentina
Memórias do Instituto Oswaldo Cruz 92 (2), 143-149
Abstract: In order to detect seasonal trends in the age structure of adult mosquitoes from Buenos Aires province, Argentina, female populations were sampled with CDC traps during 1989-1991 in Punta Lara and La Plata. The mosquitoes were dissected and age-grouped according to ovarian tracheation and ovariolar stages. All Runchomyia paranensis females were parous, suggesting that this species could be autogenous. Aedes albifasciatus showed parous peaks following population peaks, with shorter delays in spring-summmer and longer in fall-winter. Ae. crinifer and Culex dolosus showed wide fluctuations in age structure due to adult emergences during all months. Psorophora ferox showed high population replacement rates. Mansonia indubitans and Ma. titillans have few generations per year during their activity period. This is the first report on age-grading of adults of field mosquito populations from Argentina.
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Research topic(s) for pests/diseases/weeds:
surveys/sampling/distribution
population dynamics/ epidemiology

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Culex dolosus		Argentina
	Aedes albifasciatus		Argentina
	Mansonia titillans		Argentina
	Psorophora ferox		Argentina
	Aedes crinifer		Argentina
	Isostomyia paranensis		Argentina
	Mansonia indubitans		Argentina