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

作者：Machado Vicente Estevam; Correa Arlene Goncalves; Goulart Thais Marchi; da Rocha Silva Flavia Benini; Samillan Ortiz Dennys Ghenry; Pinto Mara Cristina^*

来源：Parasites & Vectors, 2015, 8(1): 147.

DOI：10.1186/s13071-015-0748-y

• Sand flies
• Wind tunnel
• Attractiveness
• Alcohols
• Plant volatiles
• Olfactometry
• Nyssomyia neivai
• Octanol
• Hexanol

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.

• 出版日期2015-3-7