This study examined the diversity, abundance and evenness of butterfly pollinators in Kumaun region, Uttarakhand from March 2019 to February 2020. A total of 394 butterflies, representing 40 species and five families were collected. Nymphalidae was the most dominant family with 19 species, followed by Pieridae (9 species), Lycaenidae (9 species), Papilionidae (2 species), and Hesperiidae (1 species), respectively. Pieris canidia indica (Evans) was the most abundant species, constituting 38.3% of the total individuals. Shannon-Wiener diversity index was observed to be maximum in Site-1 (H’=1.37) than in Site-2 (H’=1.12). Similarly, evenness was maximum in Site-1 (E=0.457), than in Site-2 (E=0.333). In addition, significant pollinator species in crops have been identified in agroecosystems.

Species diversity and abundance of insects associated in an agricultural ecosystem was studied in Bhabar region of district Nainital in Uttarakhand from March 2018 to February 2020. Data revealed a total of 148 insect species belonging to 47 families and nine orders (Lepidoptera, Coleoptera, Hemiptera, Orthoptera, Hymenoptera, Odonata, Diptera, Dictyoptera, and Phasmida), identified from 2007 specimens. These were classified into five functional trophic groups: phytophagous, predators, omnivores, saprophages and decomposers. The diversity indexes showed significance- Diversity (Hʹ=1.778), Evenness (E=0.9689), and Margalef’s Index (d=1.924). Diversity indices of insect orders showed Lepidoptera to be the most diverse (Hʹ=1.994) with maximum species richness having high Margalef’s index (d=2.607), and dipterans with highest evenness (E=0.9572). A total of 1331 individuals of insect pollinators/ visitors were observed, belonging to 99 species of 5 orders (Lepidoptera, Hymenoptera, Coleoptera, Hemiptera, and Diptera).