oa Journal of the Entomological Society of Southern Africa - Aspects of the ecology and behaviour of Eremnus cerealis Marshall (Coleoptera: Curculionidae). 2. Laboratory studies on the effects of light, temperature and humidity

Volume 35, Issue 2
  • ISSN : 0013-8789



The response of adult beetles to light, temperature and humidity was investigated. Evidence is presented that the optimum combination of these environmental factors is a moderately high temperature (�25�C), moderately high humidity (�80% R.H.) and darkness. It was found that darkness is the dominating factor, which results in this species being nocturnal, and that a high humidity has a marked influence on its reactions.

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