Evidence for reversible change in intensity of prolonged diapause in the chestnut weevil Curculio sikkimensis

► Many Curculio sikkimensis larvae kept at 20 °C completed prolonged diapause after a brief chilling. ► Exposure to 25 °C after 20 °C incubation decreased the percentage completing diapause after a brief chilling. ► Reexposure to 20 °C after 25 °C incubation increased the percentage completing diapause after a brief chilling. ► Chilling time for diapause completion decreased after incubating at 20 °C and increased at 25 °C. ► Diapause intensity in C. sikkimensis changes reversibly with temperature.