Laboratory experiments were carried out at 25+1C and 60+6% RH to study the sequence of host seeking and the stimuli involved for the parasitic wasp Eriborus argenteopilosus and its host Heliothis armigera [Helicoverpa armigeral. The results showed that females of E. argenteopilosus were attracted by the food plant leaf of their hosts (pigeon pea [Cajanus cajan], chickpea [Cicer arietinum], okra, cauliflower, tomato and cabbage) and were stimulated to start searching. Further stimulation from new damage by host larvae released excitement behaviour and continued intensive searching. In close vicinity of a host, orientation of antennae occurred and finally stabbing. none