External exoskeletal cavities in Coleoptera and their possible mycangial functions

  title={External exoskeletal cavities in Coleoptera and their possible mycangial functions},
  author={Vasily V. Grebennikov and Richard A. B. Leschen},
  journal={Entomological Science},
This paper reviews the occurrence of external exoskeletal cavities in beetles and provides critical reassessment of their possible mycangial function. In most reported cases, the decision to attribute mycangial function to exoskeletal cavities was based solely on the combination of two factors: (i) observation of these cavities on beetle's body; and (ii) knowledge that this particular beetle species uses fungi as a food source. Such reasoning resulted in the assumption, occasionally premature… 
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