Aedes aegypti Linnaeus mosquito is a vector of several viruses that cause diseases of medical and veterinary importance. Dengue, yellow fever, Zika and Chikungunya viruses are more important arboviruses transmit by mosquitoes. A. aegypti life cycle goes through 4 stages of development and the time for development from egg to adult mosquito depends on a series of biotic and abiotic factors such as temperature, food availability and population density, studied in different species of insects. In this work we studied the effects of different food concentrations, temperatures variation, pH gradient and luminosity on the development of A. aegypti larvae. The eggs were collected in the city of Tangará da Serra/MT and larvae in the L1 stage were used for the tests. The results showed that all the factors studied interfered in the larval development. The increase in food concentration and temperature accelerated the development of larvae to pupae. The acidic pH (pH = 4) proved to be unsuitable for the development of larvae (100% lethality), with the ideal pH for the development of larval stages being equal to pH = 6. Although in all light variations (dark, light and photoperiod 10L/ 14D) there was complete development of the larvae, the photoperiod test proved to be more adequate. This study helps to better understand the success, dispersion and adaptation of the A. aegypti mosquito in different regions under different environmental conditions.

The species Aedes (Stegomyia) aegypti (Linnaeus, 1762) (Diptera: Culicidae) is of great importance for human health, as it is responsible for the transmission of viruses that can cause dengue, chikungunya, zika and urban yellow fever. The proposal of this study is to test the efficiency of a new trap model in capturing and trapping Ae. aegypti based on favoring the insect's ecology. This trap model was analyzed regarding the attractiveness for egg-laying, and the trapping of larvae and consequently the adults. The tests were carried out using white traps (original version) and black traps (adapted from the original), both in field and laboratory conditions. In the field, the black traps showed 100% effectiveness compared to white traps, showing more positive results for the attractiveness of Ae. aegypti mosquito and adult imprisonment. According to the results for this trap model, from both test in the field and in the laboratory, it was concluded that this new product is effective in capturing Ae. aegypti and it guarantees mosquito trapping safety, also low-cost production, practicality, logistics and possibility of its use by the local population. After the validation and effectiveness of the trap “drinking-fountain like”, the definitive trap called Mosquitex was developed, which is brand new for this mosquito, with patent registration INPI - BR2020190112226 - 2019, and with the possibility of assisting in the control and monitoring of Ae. aegypti in urban areas.

O objetivo deste estudo foi determinar em laboratório se Aedes (Stegomyia) aegypti (L.), importante vetor da dengue e febre amarela, alimenta-se do néctar de Euphorbia milii Des Moul (Euphorbiaceae) , planta comumente utilizada nos domicílios como cerca viva, e avaliar o efeito desta alimentação em sua sobrevivência. O tempo de vida de ambos os sexos foi acompanhado diariamente e um teste de detecção de frutose foi utilizado para a comprovação da ingestão de açúcar pelos mosquitos. O acesso diário ao néctar conferiu um aumento significativo no tempo de vida de machos e fêmeas (12,8 e 18,4 dias, respectivamente), em relação aos mosquitos mantidos somente com água (6,4 e 7,4 dias, respectivamente). Plantas em ambientes domésticos, produtoras de néctar e adequadas à alimentação do mesmo pelos mosquitos, assim como E. milii, possuem o potencial de desempenhar um significativo papel no orçamento energético de mosquitos. Um aumento na sobrevivência de fêmeas pode significar um aumento na probabilidade de infecção e transmissão de agentes patogênicos e nos machos um aumento na probabilidade de inseminação das fêmeas. Ainda que frequentemente desconsiderada em pesquisas ou táticas de controle, a propensão do mosquito Ae. aegypti em ingerir açúcares pode ser uma variável que confira vantagens a este vetor. Increases Survival of Aedes (Stegomyia) aegypti (Linnaeus) Under Laboratory Condition by the Ingestion Extrafloral Nectar of Euphorbia milii Des Moul. (Euphorbiaceae) Abstract. The objective this study was to determine if in laboratory, Aedes (Stegomyia) aegypti (L.), an important vector of dengue and yellow fever, feeds on the nectar of Euphorbia milii Des Moul (Euphorbiaceae) , plant commonly used in homes as a hedge, and evaluate the effect of feeding on survival. The lifetime of both sexes was checked daily and a test for fructose was used for verification of sugar intake by mosquitoes. The daily access to the nectar gave a significant increase in the lifetime of males and females (12.8 and 18.4 days, respectively) in relation to mosquitoes maintained only with water (6.4 and 7.4 days, respectively). Plants in domestic environments, producing nectar and suitable for feeding by mosquitoes of the same, as well as E. milii, have the potential to play a significant role in the energy budget of mosquitoes. An increase in the survival of females can mean an increased likelihood of infection and disease transmission in males and an increased likelihood of insemination of females. Although often overlooked in research and control tactics, the propensity of the mosquito Ae. aegypti ingesting sugars can be a variable that confers advantages to this vector.

O objetivo deste estudo foi determinar em laboratório se Aedes (Stegomyia) aegypti (L.), importante vetor da dengue e febre amarela, alimenta-se do néctar de Euphorbia milii Des Moul (Euphorbiaceae) , planta comumente utilizada nos domicílios como cerca viva, e avaliar o efeito desta alimentação em sua sobrevivência. O tempo de vida de ambos os sexos foi acompanhado diariamente e um teste de detecção de frutose foi utilizado para a comprovação da ingestão de açúcar pelos mosquitos. O acesso diário ao néctar conferiu um aumento significativo no tempo de vida de machos e fêmeas (12,8 e 18,4 dias, respectivamente), em relação aos mosquitos mantidos somente com água (6,4 e 7,4 dias, respectivamente). Plantas em ambientes domésticos, produtoras de néctar e adequadas à alimentação do mesmo pelos mosquitos, assim como E. milii, possuem o potencial de desempenhar um significativo papel no orçamento energético de mosquitos. Um aumento na sobrevivência de fêmeas pode significar um aumento na probabilidade de infecção e transmissão de agentes patogênicos e nos machos um aumento na probabilidade de inseminação das fêmeas. Ainda que frequentemente desconsiderada em pesquisas ou táticas de controle, a propensão do mosquito Ae. aegypti em ingerir açúcares pode ser uma variável que confira vantagens a este vetor. Increases Survival of Aedes (Stegomyia) aegypti (Linnaeus) Under Laboratory Condition by the Ingestion Extrafloral Nectar of Euphorbia milii Des Moul. (Euphorbiaceae) Abstract. The objective this study was to determine if in laboratory, Aedes (Stegomyia) aegypti (L.), an important vector of dengue and yellow fever, feeds on the nectar of Euphorbia milii Des Moul (Euphorbiaceae) , plant commonly used in homes as a hedge, and evaluate the effect of feeding on survival. The lifetime of both sexes was checked daily and a test for fructose was used for verification of sugar intake by mosquitoes. The daily access to the nectar gave a significant increase in the lifetime of males and females (12.8 and 18.4 days, respectively) in relation to mosquitoes maintained only with water (6.4 and 7.4 days, respectively). Plants in domestic environments, producing nectar and suitable for feeding by mosquitoes of the same, as well as E. milii, have the potential to play a significant role in the energy budget of mosquitoes. An increase in the survival of females can mean an increased likelihood of infection and disease transmission in males and an increased likelihood of insemination of females. Although often overlooked in research and control tactics, the propensity of the mosquito Ae. aegypti ingesting sugars can be a variable that confers advantages to this vector.