Electroantennogram responses of Hyles lineata (Sphingidae: Lepidoptera) to volatile compounds from Clarkia breweri (Onagraceae) and other moth-pollinated flowers

摘要: Electroantennograms (EAGs) from field-collectedHyles lineata moths were recorded in response to 10 individual floral volatiles identified fromClarkia breweri (Onagraceae), 22 scent compounds produced by other moth-pollinated flowers and eight ubiquitous “green leaf volatiles.” Females' EAGs generally 1.5- 2-fold greater than those observed for male moths. Female:male EAG rank orders significantly correlated, but marked differences order some (e.g., benzyl alcohol, cinnamic aldehyde, geraniol, linalool). Linalool, acetate, methyl salicylate, pyranoid linalool oxide elicited the largest responses (−1.2 −0.8 mV) among fromC. breweri. lower monoterpenes as a pooled compound class aromatic esters, alcohols aldehydes, fatty acid derivatives, N-bearing oxygenated terpenoids. structurally related not different most cases. Both femaleH. sensitive mostC. at 10−2 10−4 µg/µl doses, potency varied with dose/concentration tested.H. lineata's olfactory sensitivity diverse volatile across range of doses/concentrations suggests that broad array could function attractants foraging hawkmoths.