Verocai G G, McGAHA T W, Iburg J P, Katholi C R, Cupp E W, Noblet R, Unnasch T R
Department of Global Health, Global Health Infectious Diseases Research Program, College of Public Health, University of South Florida, Tampa, FL, U.S.A.
Department of Entomology, University of Georgia, Athens, GA, U.S.A.
Med Vet Entomol. 2017 Jun;31(2):140-149. doi: 10.1111/mve.12218. Epub 2016 Dec 2.
Many blackfly species (Diptera: Simuliidae) are economically important insect pests, both as nuisance biters and as vectors of pathogens of medical and veterinary relevance. Among the important blackfly pest species in North America is Simulium vittatum Zetterstedt sensu lato. The objective of this study was to identify compounds excreted by mammalian hosts that are attractive to host-seeking S. vittatum females. The attractiveness of putative compounds to colonized S. vittatum was tested through electrophysiological (electroantennography; n = 58 compounds) and behavioural (Y-tube assays; n = 7 compounds in three concentrations) bioassays. Five compounds were significantly attractive to host-seeking S. vittatum females: 1-octen-3-ol; 2-heptanone; acetophenone; 1-octanol, and naphthalene. These candidate compounds might be useful as attractants in traps that could be developed for use in alternative or complementary management tactics in programmes to suppress nuisance blackfly populations, or for the collection of samples in which to study the transmission ecology of pathogens transmitted by blackflies of the S. vittatum complex.
许多蚋类物种（双翅目：蚋科）是具有经济重要性的害虫，既是令人讨厌的叮咬者，又是具有医学和兽医学相关性的病原体载体。北美重要的蚋类害虫物种之一是广义的条纹蚋（Simulium vittatum Zetterstedt）。本研究的目的是鉴定哺乳动物宿主分泌的、对寻找宿主的条纹蚋雌虫具有吸引力的化合物。通过电生理学（触角电位图；58种化合物）和行为学（Y形管试验；3种浓度的7种化合物）生物测定，测试了假定化合物对定居的条纹蚋的吸引力。有5种化合物对寻找宿主的条纹蚋雌虫具有显著吸引力：1-辛烯-3-醇、2-庚酮、苯乙酮、1-辛醇和萘。这些候选化合物可用作诱捕器中的引诱剂，可开发用于抑制讨厌的蚋类种群的替代或补充管理策略，或用于收集样本以研究条纹蚋复合体传播的病原体的传播生态学。
