none Preference of the exotic parasite Hyposoter didymator (Thunberg) to parasitise Spodoptera litura (Fabricius) feeding on 8 different host plants was studied. Maximum preference was for host larvae on castor and beetroot, followed by tobacco cv. Xanthi, cauliflower, cowpea, okra and cabbage. Larvae on tobacco cv. Jayashri remained unparasitised. Per cent parasitism obtained on the host plants (except tobacco cv. Jayashri) by multi-choice test was statistically similar. Percent adult emergence was higher on cabbage, cauliflower, castor and beetroot than on other host plants.