Abstract
The present study was undertaken to examine the diversity, occurrence and distribution pattern of damselflies and dragonflies (Odonata) in Keoladeo National Park from 2010–2015. A combination of direct search, observation and opportunistic sighting methods were used to record 37 different species of Odonata (9 damselflies and 28 dragonflies). Among the Odonata recorded, the most diverse families are Libellulidae presented by 22 species and Coenagrionidae was present with eight species. According to the list presented by Palot & Soniya (2000) 21 species could be added; of the species presented here five are recorded for the first time from Rajasthan.
Highlights
Dragonflies and Damselflies (Insecta: Odonata) are among the most fascinating insects of the aquatic habitats
This article presents a recent overview of the odonate fauna of Keoladeo National Park, Bharatpur based upon observations made between 2010 and 2015 by the authors
Study area Keoladeo National Park is part of the Indo-Gangetic flood plains situated between 77.48583333 E & 27.11833333–27.20055556 N in Bharatpur District of Rajasthan (Fig. 1)
Summary
The observed odonates were all documented with photos and identified with the help of Identification keys provided by Fraser (1933, 1934, 1936), Mitra (2006) and Subramanian (2005). Use of a binocular during the field trips was very helpful. At every site an estimation of numbers, additional information about observed reproductive behaviour (egg-laying, exuviae, tenerals) and habitat (water level, vegetation) of all recorded species were collected. The odonates were categorized on the basis of their abundance: 1 - very common (>100 sightings), 2 - common (50–100 sightings), 3 - rare (1–10 sightings). The abundance is combined with the reproduction status according to our summarized observations of the past five years
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