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Thank you for visiting nature. You are using a browser version with limited support for CSS. To obtain the best experience, we recommend you use a more up to date browser or turn off compatibility mode in Internet Explorer.
In the meantime, to ensure continued support, we are displaying the site without styles and JavaScript. Coleoptera beetles is a massively successful order of insects, distinguished by their evolutionarily modified forewings called elytra. These structures are often presumed to have been a major driving force for the successful radiation of this taxon, by providing beetles with protection against a variety of harsh environmental factors. However, few studies have directly demonstrated the functional significance of the elytra against diverse environmental challenges.
Here, we sought to empirically test the function of the elytra using Tribolium castaneum the red flour beetle as a model. We tested four categories of stress on the beetles: physical damage to hindwings, predation, desiccation, and cold shock.
We found that, in all categories, the presence of elytra conferred a significant advantage compared to those beetles with their elytra experimentally removed.