Synopsis This volume deals with the family Scoliidae which belongs to Aculeate Group of Hymenoptera. It forms one of the most important Ectoparasitoid Group of Hymenoptera. This group constitutes more than 17% of the world fauna. The member of this family are commonly known as hairy wasps, usually black in colour, marked with spots or bands of yellow, white or red. Their wings are usually with metallic iridescence. The vestiture varies from black, white to entirely golden or reddish. These wasps in length may range from 5 to 50 mm. This volume deals with two tribes of subfamily Scoliinae of the family Scoliidae. The other subfamily Proscoliinae is restricted to Greece and Armenia. The Scoliinae is represented by tribes : Campsomerini and Scoliini. As a result of this study 79 species/subspecies under 19 genera have been reported from Indian subregion. Of these, eight species and five subspecies are new to science. This fauna volume will help in identification of various species, their distribution and relationship with other allied species. It is hoped that many of these may be economically exploited for the control of noxious insect pest species.