1984 Volume 19 Issue 4 Pages 430-435
Observations on the development of the parasite Trougus mactator TOSQUINET revealed that the first instar larvae did not develop to the second instar until their host Papilio xuthus L. pupated. To learn the effect of the physiological condition of the host on the development of its parasite, the following experiments were carried out. The parasitized fifth instar larva was ligatured and the development of the parasite was examined. When the abdomen of the ligatured host pupated, the parasite developed to the second instar, but did not if it remained as a larva. When the diapausing host pupa was exposed to a long day photoperiod after pupation, the parasite left the host, while it entered into diapause under a short day condition in the host pupa. These results indicate that the process to the pupation of the host is an important factor in the revival of moulting of the first instar parasite, but the development of the parasite will be further influenced by other factors, possibly phoroperiodic condition.
