Debris cloaking in Endomychidae: a new species from Peru (Coleoptera)

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Adults and immature stages of the mychothenine endomychid Bystus decorator sp. nov. from Peru are described. All life stages occur together on rotting logs and feed on fungal spores. Larval debris cloaking and morphological adaptations associated with it are discussed in detail. Some larval setae are apically clubbed and barbed along the shafts to facilitate particle adhesion. Pronation of the thoracic lateral lobes bring the setae into contact with the substrate to gather particles of debris. The anatomy and functional morphology of the thoracic musculature is considered in the context of cloaking behaviour. Variations in debris cloaking behaviours among mychothenine endomychids are discussed and compared to other debris‐cloaking insects. Copyright © 1993, Wiley Blackwell. All rights reserved

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Zoological Journal of the Linnean Society

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