During my Ph.D. tenure, taxonomic studies were carried out on one of the dominant group of Rhopalocera referable to Superfamily Papilionoidea (Lepidoptera). During the present course of work, intensive samplings were conducted in different localities of India namely Northwest Himalayas (hilly areas of Himachal Pradesh), Eastern Himalayas (Tropical Semi Evergreen Forests and Tropical rain forests of Thenzawl and Serchipp, hilly dense forests of Lunglei and Reiek in Mizoram, Tropical rain forests of Nagaland and Sunderbans of West Bengal states), Western ghats (Evergreen forests of the nearby areas of Neyyar Dam, Lion safari park, surroundings of Periyar Tiger Reserve from the states of Kerala and various dense forests of Karnataka) and various islands such as Long island, Havlok island, Neil island, Campbell bay and including other localities of Andaman and Nicobar islands from 2016 to 2019. Total 67 species pertaining to 23 genera including 26 subspecies out of which 13, 15 and 21 belong to dry season, wet season, polymorphic forms respectively. 15 scheduled species have been discussed in detail along with their morphological features, distribution by incorporating male and female genitalic attributes. One of the very important genus is Catopsilia which was erected by Hubner in 1819 on its type species Papilio crocale Cramer, 1775 and shows maximum number of polymorphic forms. The genus consists of 6 species which are widely distributed in the Palaeotropic regions. Out of these, 3 species i.e. Catopsilia pomona (Fabricius, 1775), Catopsilia pyranthe (Linnaeus, 1758) and Catopsilia scylla (Linnaeus, 1763) have been reported from India so far. In this present work, all the 3 species from India have been studied in detail and first time studied in an elaborated form. The different female forms of Catopsilia pomona (Fabricius, 1775), are principle Catopsilia pomona (Fabricius, 1775), catill, bidotata, jugurtha and jugurthina are morphologically different with slight similarities. Similarly, Catopsilia pyranthe (Linnaeus, 1758) shows two forms i.e. principle form Catopsilia pyranthe (Linnaeus, 1758) and florella are distinct species from morphological perspective point of view but same with their genitalic characters.
