Abstract
Anthrenus verbasci (L.) (Col. Dermestidae) has a two-year life-cycle (semivoltine) under outdoor temperature conditions in southern England, spending the first winter as a young larva and the second as a fully grown larva1. Under constant conditions in the laboratory larvae may be either uni- or semivoltine according to temperature. The percentage of larvae with a univoltine life-cycle increases from 0 at 15° C. to 100 at 25° C. The larvae have been shown to possess an endogenous and persistent rhythm controlling the onset of diapause2. Each cycle of the rhythm consists of a period of active growth (with moulting and/or pupation) followed by diapause. Under constant conditions the length of the cycle is about 44 weeks, but this is extended to an annual cycle, under outdoor conditions, by the insertion of a period of dormancy after the completion of diapause.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
