Attraction of the sand fly Nyssomyia neivai (Diptera: Psychodidae) to chemical compounds in a wind tunnel

Abstract

Background: Similar to other hematophagous insects, male and female sand flies must feed on plants to obtain sugar and, subsequently, energy to complete their life cycles. A large number of compounds emitted by plants may act as volatile signals to these insects. Primary alcohols have been detected in some plants, but in small amounts. In a previous report, the attractiveness of saturated primary alcohols with 7 to 9 carbons was evaluated for Lutzomyia longipalpis, the vector of American visceral leishmaniasis, with positive results. Methods: In the present study, a wide range of primary alcohols, 3 to 10 carbons, were tested to investigate their attractiveness to another sand fly species, Nyssomyia neivai, a putative vector of American cutaneous leishmaniasis. The mixture of compounds that induced the best sand fly response was also evaluated. Results: Of the eight compounds evaluated, hexanol and octanol elicited the best attractive responses for sand fly females. Conclusion: Phytochemicals may be an interesting source of search for new sand fly attractants.

Evaluation of Different Attractive Traps for Capturing Sand Flies (Diptera: Psychodidae) in an Endemic Area of Leishmaniasis, Southeast of Iran

“…Various studies have shown that using socks worn by humans in traps can attract a great number of malaria vectors, and due to the persistence of the smell of sweat, closed areas containing worn clothes are good places for attracting Anopheles spp. mosquito and sand flies (19)(20)(21)46). Also, some compounds in human sweat, such as lactic acid, have been successfully used in malaria-vector capture programs due to their extensive attraction for mosquitos.…”

“…Attractive Toxic Bait (ATB) uses simple or complex chemicals produced by the host body (human and animal) such as CO 2 (in animal breath), lactic acid and octanol (in host sweat), urine, sweat, and blood to attract the insects. Such compounds have been introduced as effective materials in attracting Diptera (17)(18)(19)(20)(21)(22).…”

Attraction of the sandfly Lutzomyia longipalpis to possible biomarker compounds from dogs infected with Leishmania infantum

“…Pure hexane was used as a negative control. A volume of 200 µL of each concentration of each compound was placed on a filter paper (4 × 4 cm) and hung at the entrance of the airflow (Machado et al ., ).…”

Caracterização do perfil de compostos orgânicos voláteis produzidos por cultura de células e animais infectados com <i>Leishmania infantum</i>

“…Glossina pallidipes e G. morsitans (moscas tsé-tsé, vetores da tripanosomíase africana) são atraídos por 1-octen-3-ol, 1-nonanol e 1-heptanol (Hall et al, 1984;Magalhães-Junior et al, 2014a). Além disso, o vetor da leishmaniose cutânea na América do Sul, Nyssomyia neivai, foi mais atraído pelos álcoois hexanol e octanol em testes em túneis de vento (Machado et al, 2015).…”