The studies on species diversity of Odonata (Damselflies and Dragonflies) was conducted in and around Asan Conservation Reserve and RAMSAR site, District Dehradun, Uttarakhand, India during 2021-24. In the present study recorded about 45 species belongs to 07 families under 2 suborders of order Odonata. The family Libellulidae was the most dominant family of order Odonata, represented by 25 species, followed by Coenagrionidae 11 species, Gomphidae 04 species, Aeshnidae 02 species, and Calopterygidae, Lestidae, Platycnemididae each having 01 species. The study recorded maximum number of 44 species in the study area selected Sector-II (in Wetland Vegetation area), followed by 20 species in Sector-IV (Vegetation around Yamuna river), 19 species in Sector-III (vegetation around Asan River) and least 15 species in Sector-I (Vegetation around Asan Barrage), which indicates that maximum species of odonates prefer Sector-II study area having Wetland vegetation as suitable habitat to complete their life cycle except one species Neurobasis chinensis, which prefer Sector-III vegetation around Asan river habitat. The mass emergence of the migratory species Pantala flavescens (Fabricius) was recorded in the months of June-September during all three years study period. The Odonates play crucial roles in freshwater ecosystems, their presence indicates good water quality and their diverse species contribute to ecosystem stability. This study helps in planning conservation efforts, habitat management and understanding ecological patterns in the study area

Odonata, diversity, Asan Conservation Reserve, Dehradun, Uttarakhand, India

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Manoj Kumar Meena and Gaurav Sharma (2025). Studies on the Species Diversity of Damselflies and Dragonflies (Odonata: Insecta: Arthropoda) in and Around Asan Conservation Reserve and RAMSAR Site, Uttarakhand, India. Biological Forum – An International Journal, 17(1): 113-118