Immature stages of mosquitoes (Diptera: Culicidae) Collected during the autumn-winter period in Cordoba Province, Argentina

Abstract

Eggs, immature mosquito collections were made at Cosquin, La Calera ( Chaco phytogeographic region), Villa Allende and Villa del Rosario (Espinal phytogeographic region) during April/September of two consecutive years 1989, 1990. Specific immature habitats in each locality were identified and sampled monthly. Eggs and/or immatures of Aedes albifasciatus, Ae. fluviatilis, Anopheles albitarsis, culex acharistus, Cx. apicinus, Cx. bidens, Cx. coronator, Cx. chidesteri, Cx. dolosus, Cx. maxi, Cx. quinquefasciatus, Cx. saltanensis, Psorophora ciliata and Uranotaenia lowii were collected. Three species (Cx. acharistus, Cx. dolosus and Cx. quinquefasciatus) were collected during the sampling period for all developmental stages. This suggests that immature of these species do not overwinter but continue to develop throughout the cold autumn and winter seasons

Effects of flooding and temperature on Aedes albifasciatus development time and larval density in two rain pools at Buenos Aires University City

“…Although the cohorts produced during this season were less abundant as compared to other periods, they kept the population at a basic level of activity even in the coldest months. In agreement with our observations, immature stages of this mosquito were also captured during the fall-winter period in the Province of Córdoba (Almirón & Brewer 1994). During the warm season, in spite of the greater volumes of rain, which doubled the winter standards, the high temperatures remarkably reduced the permanence of the pools by facilitating a fast drying of the soil.…”

Ochlerotatus albifasciatus in rain pools of Buenos Aires: seasonal dynamics and relation to environmental variables

“…In Córdoba province, larvae and pupae have been detected during the fall-winter period (Almirón & Brewer 1994), whereas in Buenos Aires province they have been found from spring through fall (Maciá et al 1995). In the rain pools of parks in the city of Buenos Aires, the immature stages of this mosquito not only occur year-round , but they are also the most abundant insects .…”

Winter biology of Culex pipiens quinquefasciatus say, (Diptera: Culicidae) from Córdoba, Argentina

“…No more details are given about the winter biology of this culicid. In Córdoba Province with continental temperate climate, immature stages and adults of quinquefasciatus were collected during the cold months (Almirón & Brewer 1994.…”