New records of polymorphism in Asian libellulid dragonflies (Insecta: Odonata)
International Journal of Odonatology, Volume 23, Issue 4, Pages 337-356, 2020
Published: 1 October 2020 (Received: 15 February 2020, Accepted: 25 June 2020)
Polymorphism has rarely been reported from dragonflies of the Libellulidae (Odonata: Anisoptera) family. Here, we report female-limited polymorphism in females of five species of the Libellulidae and a gynandromorph male of Brachythemis contaminata from South Asia. We describe the morphological variation between andromorph and heteromorph females, and collate records of andromorph females from various sources. Yearly number of andromorph females of Crocothemis servilia, Urothemis signata and Neurothemis tullia was calculated using records from published literature and unpublished sources, and social media.
Keywords: polymorphism, andromorph, gynandromorph, Crocothemis, Urothemis, Neurothemis, servilia, signata, India, citizen science, dragonfly
Issue section: Article