Androconial hairbrushes of the Syntomis (Amata) phegea (L.) group (Lepidoptera, 
Ctenuchinae): A synapomorphic character supported by sequence data of the 
mitochondrial 16S rRNA gene

Schneider, Dietrich; Legal, L.; Dierl, W.; Wink, M.

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Androconial hairbrushes of the Syntomis (Amata) phegea (L.) group (Lepidoptera, Ctenuchinae): A synapomorphic character supported by sequence data of the mitochondrial 16S rRNA gene

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Schneider, Dietrich
Emeritus, Seewiesen, Max Planck Institut für Ornithologie, Max Planck Society;
Verhaltensphysiologie, Seewiesen, Max Planck Institut für Ornithologie, Max Planck Society;

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Schneider, D., Legal, L., Dierl, W., & Wink, M. (1999). Androconial hairbrushes of the Syntomis (Amata) phegea (L.) group (Lepidoptera, Ctenuchinae): A synapomorphic character supported by sequence data of the mitochondrial 16S rRNA gene. Zeitschrift für Naturforschung, C: Journal of Biosciences, 54(12), 1119-1139.

Cite as: https://hdl.handle.net/11858/00-001M-0000-002B-145A-1

Abstract

Males of several palaearctic Syntomis/Amata species (Lepidoptera: Arctiidae) possess androconial hairbrushes in connection with the foreleg core. The cuticular structure of these potentially behaviour-related and pheromone dissipating brushes is described. Such male-specific organs and signals play a crucial role in the female choice procedure. The presence of hairbrushes was found in 17 out of 28 inspected species df the tribe;Syntomini. All members of the Syntomis phegea group (Europe to Central Asia, as well as Caspian, Caucasian and near-middle East species) have these structures, and only three oriental and south Asian, but none of three African species, carry this trait. The common genetic base of this morpho: logical character is supported by an analysis of mitochondrial 16S rRNA from 19 representative taxa; species with hairbrushes form a monophyletic clade and the brushes are a synapomorphic character. This genetic finding corroborates the ethological significance of these organs. Phylogenetic data show a substantial genetic divergence between the tribe Ctenuchini (New World species) and the Old World Syntomini. Furthermore, DNA sequence data suggest a split of the genus Amata (sensu Obraztsov, 1966) in two distinct genera, Amata (without hairbrushes) and Syntomis (with hairbrushes).