In our study, we examined the volatile androconial scent chemistry of Atlides polybe (Linnaeus, 1763), a Lycaenidae species known for its distinctive “grape-like” aroma. This is the first Theclinae species to have its androconial secretions chemically investigated. Analysis of solvent sample using gas chromatographymass spectrometry revealed 13 ion peaks corresponding to distinct volatile compounds. Among these, methyl anthranilate emerged as the dominant compound, primarily associated with the aldehydes heptanal, octanal, and (E)-2-decenal. This study marks the first report of methyl anthranilate as a volatile compound in Papilionoidea. Interestingly, methyl anthranilate is widely used as the primary grape flavoring agent in the flavor and fragrance industry, matching the scent emitted by A. polybe. The presence of methyl anthranilate as an androconial constituent, along with aldehydes imparting fruity odors, delineates a unique chemical bouquet among Papilionoidea. This composition likely serves as a sex pheromone and may also fulfill complementary functions, such as predator deterrence.
Nobre et al. (Wed,) studied this question.