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A biodiversity survey was conducted in Koraput District of southern Odisha between August 2014 and July 2017.  During the survey, occurrence of Mugger or Marsh Crocodile Crocodylus palustris was ascertained from five localities in a stretch of 23km of river Saberi, a tributary of the Godavari River system.  The area is in the Gupteswar proposed reserve forest of Odisha, and forms a boundary with Kanger Ghat National Park of Chhattisgarh State.  The geographic region offers possible scope for long term ecological monitoring jointly by wildlife organizations of Odisha and Chhattisgarh in collaboration with Central University of Orissa.  For long-term conservation of the species, activities may be initiated with annual monitoring of crocodile populations involving local people, and creating awareness about the Schedule-I status of crocodiles under the Wildlife Protection Act, 1972.

The first record of a butterfly species, the Tamil Treebrown Lethe drypetis todara Moore, 1881 (Nymphalidae: Satyrinae) is described from Deomali Hill range of southern Odisha, in Eastern Ghats of India, collected by fruit-baiting.  This is the first record from Odisha almost 129 years after its first report from Khurda in coastal Odisha by Taylor & de Niceville in the year 1888. The ecology and sampling of the species are described in this study.

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A butterfly study in the biodiversity rich biogeography transition zone of the undivided Midnapore District of West Bengal was carried out from March 2014 to March 2017.  A total of 98 species of butterflies under five families, 19 subfamilies, and 70 genera were documented by the study.  Maximum species diversity was found in Nymphalidae family with 31 species (31.63%), followed by Lycaenidae 24 species (24.48%), Hesperiidae-17 (17.34%), Pieridae 16 (16.32%), and the least by Papilionidae 10 (10.28%).  Among the families, the highest common species (n=10) was recorded under the family Nymphalidae and maximum rare species (n=4) under the family Lycaenidae.  Highest species richness has been recorded in post-monsoon season (97 species) followed by monsoon (78 species), winter (66 species), and pre-monsoon (47 species).  During the study, five species of butterflies (Castalius rosimon, Neptis jumbah, Discophora sondaica, Lethe europa, and Papilio clytia) under Schedule-I, three species (Euchrysops cnejus, Mahathala ameria, and Cepora nerissa) under Schedule-II and three species (Baoris farri, Hyarotis adrastus, and Euploea core) under Schedule-IV were legally protected under the Indian Wildlife (Protection) Act, 1972.  A good species to genera ratio (1.4: 1) along with 10 newly recorded species and their range extension provide information for better understanding of the ecology and distribution pattern of the butterfly fauna.  The information of the study will thus help to develop conservation strategies for management of the unique bio-geographical transitional zone.