EVIDENCE THAT CERAMBYCID BEETLES MIMIC VESPID WASPS IN ODOR AS WELL AS APPEARANCE
| Autor: | Lara Neuteboom, Jan Bergmann, Armin Tröger, Judith A. Mongold-Diers, Lawrence M. Hanks, Robert F. Mitchell, Tomislav Curkovic, Hans Martin Galbrecht, Wittko Francke |
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| Jazyk: | angličtina |
| Rok vydání: | 2016 |
| Předmět: |
0106 biological sciences
0301 basic medicine Male Wasps Megacyllene robiniae Hymenoptera 01 natural sciences Biochemistry Vespula Article Pheromones 03 medical and health sciences Acetals Botany Animals Spiro Compounds Ecology Evolution Behavior and Systematics biology Biological Mimicry Megacyllene caryae General Medicine biology.organism_classification Coleoptera 010602 entomology 030104 developmental biology Sex pheromone Odorants Female Chemical mimicry Polistes Longhorn beetle |
| Popis: | We present evidence that cerambycid species that are supposed mimics of vespid wasps also mimic their models in odor by producing spiroacetals, common constituents of vespid alarm pheromones. Adults of the North American cerambycids Megacyllene caryae (Gahan) and Megacyllene robiniae (Forster) are conspicuously patterned in yellow and black, and believed to be mimics of aculeate hymenoptera such as species of Vespula and Polistes. Adult males of M. caryae produce an aggregation-sex pheromone, but both sexes produce a pungent odor when handled, which was assumed to be a defensive response. Headspace aerations of agitated females of M. caryae contained 16 compounds that presented mass spectra characteristic of spiroacetals of eight distinct chemical structures, the dominant compound being (7E,2E)-7-ethyl-2-methyl-1,6-dioxaspiro[4.5]decane. Headspace samples of agitated males of M. caryae contained five of the same compounds, and with the same dominant compound. Females of M. robiniae produced six different spiroacetals, one of which was not produced by M. caryae, (2E,7E)-2-ethyl-7-methyl-1,6-dioxaspiro[4.5]decane, and five that were shared with M. caryae, including the dominant (2E,8E)-2,8-dimethyl-1,7-dioxaspiro[5.5]undecane. The latter compound was the sole spiroacetal produced by both males and females of a South American cerambycid species that also is thought to be a wasp mimic, Callisphyris apicicornis (Fairmaire & Germain). Preliminary work also has identified spiroacetals of similar or identical structure released by vespid wasps that co-occur with the Megacyllene species. |
| Databáze: | OpenAIRE |
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