Abstract
Male Euglossini bees (Apidae) forage for floral and non-floral perfumes. Although the use of these perfumes has not yet been clearly reported, there are indications of using perfume from varied exogenous sources as a pheromone analogue since male orchid bees do not produce it. Here, we report an interaction between male Euglossa annectans and flowers of Angelonia salicariifolia (Plantaginaceae). Floral anatomy analysis and a histological study of two different sets of trichomes indicate the presence of aromatic oils (perfume) in one set of these trichomes. The other set of trichomes produce resins. Both sets of trichomes are found in the same floral area of the flower where the male orchid bees were seen. The male orchid bees studied forage for perfumes but do not promote pollination since they do not reach the reproductive structures during their visit. Our records show that only male E. annectans were attracted to the volatile fragrance although we know that other orchid bee species also occur in the area.
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Acknowledgments
We thank Claudia Saito and Sheina Koffler for their help and additional observations in the field, Paulo César Fernandes for providing pictures and Antonella Soro and the two reviewers for helpful comments. Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) funded the first author.
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Handling Editor: Bernd Grünewald
La production de parfum dans les fleurs d’ Angelonia salicariifolia attire les mâles d’ Euglossa annectans bien qu’ils ne participent pas à la pollinisation
Euglossini / analyse histochimique / voleur de parfum / trichomes / parfum volatile
Duftproduktion in Blüten von Angelonia salicariifolia wirken anziehend auf Männchen von Euglossa annectans , die nicht als Bestäuber fungieren
Euglossa annectans / Euglossini / histochemische Analyse / Duft Räuber / Trichom / flüchtige Duftstoffe
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Boff, S., Demarco, D., Marchi, P. et al. Perfume production in flowers of Angelonia salicariifolia attracts males of Euglossa annectans which do not promote pollination. Apidologie 46, 84–91 (2015). https://doi.org/10.1007/s13592-014-0305-2
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DOI: https://doi.org/10.1007/s13592-014-0305-2