Arnaldo Maciá

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Aedes aegypti (Linnaeus) is a human-biting mosquito and the primary vector of human dengue and yellow fever viruses; it is also considered the principal vector of Chikungunya virus in Asia [1,2]. In particular, dengue and dengue hemorrhagic fever constitute an important burden to humankind in terms of morbidity and mortality. About 3.6 billion people in the(More)
Copepods from La Plata, Argentina were investigated to characterize the local community of larvivorous copepods inhabiting mosquito breeding sites and to identify new predator species of the mosquitoes which occur in artificial containers, Aedes aegypti and Culex pipiens. Diversity of larvivorous cyclopoids was highest in permanent pools. Predation by sex(More)
Alteration of fitness components was assessed in the yellow fever mosquito, Aedes aegypti, in automobile tires and vases (ovitraps) under field conditions. Larval numbers were manipulated in both kinds of containers to compare low, high, and control (natural) densities. Densities were set from a census of a wild population, then doubling and reducing to(More)
Aedes albifasciatus (Diptera: Culicidae) is the most common mosquito species in Argentina and it has been demonstrated to be the vector for some pathogens. The objective of this study was to describe the allergen composition of this mosquito species endemic to Argentina using SDS-PAGE and immunoblotting methods. Sera from mosquito-bite allergic subjects(More)
Although Mar del Plata is the most important city on the Atlantic coast of Argentina, mosquitoes inhabiting such area are almost uncharacterized. To increase our knowledge in their distribution, we sampled specimens of natural populations. After the morphological identification based on taxonomic keys, sequences of DNA from small ribosomal subunit (18S(More)
Sampling was conducted for 1 year in a marsh near Buenos Aires from axils of Scirpus giganteus, a larval habitat of the poorly known sabethine mosquito, Isostomyia paranensis. Immatures of this species were recovered on every sampling date, averaging 3-4/plant in April and decreasing to 0-1/plant in October-December. The spatial distribution of Is.(More)
The seasonality of immatures, imagoes and pathogens of Culex dolosus Lynch Arribálzaga, Culex intrincatus Brethes and Culex maxi Dyar from Punta Lara (Buenos Aires province, Argentina) was monitored weekly (larvae and pupae) or fortnightly (adults), from 1989 to 1991. Culex dolosus was present during all months. The larvae were parasitized by Geotrichum(More)
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,(More)
A catalog of the 161 type specimens of species of Hemiptera Cicadidae housed in the collection of the Entomology Division of the Museo de La Plata is presented. This collection represents 52 species grouped in 19 genera. For each species the original and current names, bibliographic references, type category, number of specimens, gender, Museo de La Plata(More)
1 Instituto de Investigaciones en Biodiversidad y Biotecnología (INBIOTEC), CONICET, Mar del Plata, Argentina, 2 Fundación para Investigaciones Biológicas Aplicadas (FIBA), Mar del Plata, Argentina, 3 Instituto de Diversidad y Ecología Animal (IDEA), CONICET and Universidad Nacional de Córdoba, Córdoba, Argentina, 4 División Entomología, Facultad de(More)