The photoperiodic reaction of the mealworm beetle Tenebrio molitor (Coleoptera, Tenebrionidae)

Tyshchenko, V.P.; Ba, A.S.

Zoologicheskii Zhurnal 66(1): 51-59


Laboratory studies in the USSR showed that the photoperiodic reaction in Tenebrio molitor at 25 degrees C regulated the rate of pupation. Under photoperiods of less than 12 h relatively short-term delays of pupation occurred, while longer photoperiods induced long-term and stable delays. At a 12-h photoperiod, larvae pupated without delay.