Two new species of Euphaea Selys, 1840 (Odonata: Zygoptera: Euphaeidae) from northern Western Ghats, India

Main Article Content

Shriram Dinkar Bhakare
https://orcid.org/0000-0002-4307-200X
Vinayan P. Nair
Pratima Ashok Pawar
Sunil Hanmant Bhoite
Kalesh Sadasivan

Abstract

Two new species of the damselfly genus Euphaea Selys, 1840 (Odonata: Euphaeidae) are described from the Western Ghats of Satara District, Maharashtra, distinguished by their distinct morphology and coloration. E. thosegharensis Sadasivan & Bhakare sp. nov. is similar to E. cardinalis (Fraser, 1924), but is distinguished by the extensor and flexor surface of all femora black while all femora bright red in E. cardinalis; apical fourth of Hw black while apical half of Hw black in E. cardinalis; genae reddish-orange, black in E. cardinalis; a tuft of sparse stub black hair on either side of tergite of S9 while both S8 and S9 with tufts of long ventral hairs in E. cardinalis.  Male genital vesicle matt black, with distal border rounded angles, while vesicle black and hexagonal in shape with rounded angles in E. cardinalis and S9 twice the length of S10, while S9 and S10 of equal length in E. cardinalis. E. pseudodispar Sadasivan & Bhakare sp. nov., is very close to E. dispar (Rambur, 1842), but is differentiated easily by the absence of yellow patch on legs as in E. dispar; only apical fifth of Hw black; genae being yellowish-white, while black in E. dispar; male genital vesicle brownish-black & rhomboid-shaped and with no transverse rugosities while black with distal border rounded and with fine transverse rugosities in E. dispar; penis with single seta on each side while E. dispar has three pairs; sternite of S9 very prominently extending ventrally like a beak in comparison with E. dispar.  We have identified additional morphological characters useful in taxonomy of Euphaea of the Western Ghats for example, tufts of ventral hairs on terminal abdominal segments genital vesicle, penile structure of males and sternite of S9 in the males, and vulvar scales of females.  A taxonomic key to all known species of genus Euphaea of the Western Ghats is also provided.

Article Details

How to Cite
[1]
Bhakare, S.D., Nair, V.P., Pawar, P.A., Bhoite, S.H. and Sadasivan, K. 2021. Two new species of Euphaea Selys, 1840 (Odonata: Zygoptera: Euphaeidae) from northern Western Ghats, India. Journal of Threatened Taxa. 13, 5 (Apr. 2021), 18200–18214. DOI:https://doi.org/10.11609/jott.6579.13.5.18200-18214.
Section
Communications
Author Biography

Kalesh Sadasivan, TORG (TNHS Odonate Research Group), Travancore Nature History Society (TNHS), MBRRA, Mathrubhumi Road, Vanchiyoor, Trivandrum, Kerala 695035, India.

Assistant Professor

References

Fraser, F.C. (1934). The Fauna of British- India, including Ceylon and Burma, Odonata, Vol. II. Taylor and Francis Ltd., London. XXIV+ 398pp., 4pls.

Garrison, R, Ellenrieder, N & Louton, J (2010). Damselfly Genera of the New World: An Illustrated and Annotated Key to the Zygoptera. The Johns Hopkins University Press, Baltimore, xiv+490pp+24 color plates.

Lahiri, A.R. (1987). Studies on the Odonate fauna of Meghalaya. Records of the Zoological Survey of India. Occasional Paper 99: 1–402.

Orr, A.G. (2003). A guide to the dragonflies of Borneo: their identification and biology. Natural History Publications (Borneo), Kota Kinabalu, 195pp.

Riek, E.F. & J. Kukalová-Peck (1984). A new interpretation of dragonfly wing venation based upon Early Upper Carboniferous fossils from Argentina (Insecta: Odonatoidea) and basic character states in pterygote wings. Canadian Journal of Zoology 62: 1150–1166.

Paulson & Schorr, M. D. (2020). World Odonata List. https://www.pugetsound.edu/academics/academic-resources/slater-museum/biodiversity-resources/dragonflies/world-odonata-list2/ [accessed on 12 Mar 2020].

Subramanian, K.A. & R. Babu (2017). Checklist of Odonata (Insecta) of India. Version 3.0. www.zsi.gov.in. [accessed on 15 August 2020].

Subramanian, K.A., K.G. Emiliyamma, R. Babu, C. Radhakrishnan, & S.S. Talmale (2018). Atlas of Odonata (Insecta) of the Western Ghats. Published by the Director, Zoological Survey of India, Kolkata, 417pp.