| Title: | "Structures related to pheromone storage in alar androconia and the female abdominal scent gland of Heliconius erato phyllis, Heliconius ethilla narcaea, and Heliconius besckei (Lepidoptera: Nymphalidae: Heliconiinae)" |
| Author(s): | de Oliveira Borges E; Bonfantti D; de Oliveira Ribeiro CA; Zarbin PHG; |
| Address: | "Departamento de Zoologia, Programa de Pos-graduacao em Entomologia, Universidade Federal do Parana (UFPR), Curitiba, Parana, Brazil. Laboratorio de Semioquimicos, Departamento de Quimica, Universidade Federal do Parana (UFPR), Curitiba, Parana, Brazil. Laboratorio de Toxicologia Celular, Departamento de Biologia Celular, Universidade Federal do Parana (UFPR), Curitiba, Parana, Brazil" |
| ISSN/ISBN: | 1097-4687 (Electronic) 0022-2887 (Linking) |
| Abstract: | "We describe the morphology of alar androconia and the female abdominal scent gland of Heliconius erato phyllis, Heliconius ethilla narcaea, and Heliconius besckei. Androconial scales of Heliconius, which are arranged in overlapping wing bands, release pheromones during courtship, probably through vibratory movements of male wings over the female to induce her to mate. An antiaphrodisiac is produced by glands located in the valves of the male and is transferred during copulation to the yellow dorsal abdominal sac present in the virgin female, causing this sac to emit a scent that reduces the attractiveness of the female for courtship with other males. Stereomicroscopy, SEM, and TEM analyses were conducted to describe the morphology of the internal and external scales and the external abdominal scent sac. The findings revealed different sizes of external androconial scales and an internal group of porous structural vesicles that are probably related to the preservation of internal space, reception and storage of secretions, and elimination of volatiles when the male is actively involved in courtship. Translucent projections on the female abdominal scent sac create open reservoirs for the reception, storage, and emission of antiaphrodisiac volatiles along with stink clubs. Male valve denticles vary in form and probably attach securely to the female sac during mating, thus ensuring secretion transfer. These features are discussed in the context of a comparative analysis" |
| Keywords: | Abdomen/*anatomy & histology Animal Scales/anatomy & histology Animals Butterflies/*anatomy & histology/*metabolism/ultrastructure Female Male Pheromones/*metabolism Principal Component Analysis Scent Glands/*anatomy & histology/ultrastructure Sex Differe; |
| Notes: | "Medlinede Oliveira Borges, Eliane Bonfantti, Dayana de Oliveira Ribeiro, Ciro A Zarbin, Paulo H G eng Research Support, Non-U.S. Gov't 2020/02/01 J Morphol. 2020 Mar; 281(3):388-401. doi: 10.1002/jmor.21106. Epub 2020 Jan 31" |
