Srinivasan, Pandiarajan, Sivaruban, Thambiratnam, Barathy, Sivaruban, Isack, Rajasekaran (2024). New findings of the Caenis ulmeriana-group (Ephemeroptera: Caenidae) in the Western Ghats, India. , 10(3), 443-451. doi: 10.61186/jibs.10.3.443
Pandiarajan Srinivasan; Thambiratnam Sivaruban; Sivaruban Barathy; Rajasekaran Isack. "New findings of the Caenis ulmeriana-group (Ephemeroptera: Caenidae) in the Western Ghats, India". , 10, 3, 2024, 443-451. doi: 10.61186/jibs.10.3.443
Srinivasan, Pandiarajan, Sivaruban, Thambiratnam, Barathy, Sivaruban, Isack, Rajasekaran (2024). 'New findings of the Caenis ulmeriana-group (Ephemeroptera: Caenidae) in the Western Ghats, India', , 10(3), pp. 443-451. doi: 10.61186/jibs.10.3.443
Srinivasan, Pandiarajan, Sivaruban, Thambiratnam, Barathy, Sivaruban, Isack, Rajasekaran New findings of the Caenis ulmeriana-group (Ephemeroptera: Caenidae) in the Western Ghats, India. , 2024; 10(3): 443-451. doi: 10.61186/jibs.10.3.443

New findings of the Caenis ulmeriana-group (Ephemeroptera: Caenidae) in the Western Ghats, India

Journal of Insect Biodiversity and Systematics
Article 2, Volume 10, Issue 3, 2024, Pages 443-451    PDF (9.76 M)
Document Type: Research Article
DOI: 10.61186/jibs.10.3.443
Authors
Pandiarajan Srinivasan1; Thambiratnam Sivaruban* 1; Sivaruban Barathy2; Rajasekaran Isack1
1PG & Research Department of Zoology, The American College, Madurai-625002, India
2Department of Zoology, Fatima College, Madurai-625018, India
Abstract
Caenis ulmeriana Malzacher, 2015 is recorded for the first time from the Western Ghats, India. Prior records of this species encompass Java, Sumatra, Thailand, Myanmar, and the Philippines. Notably, the Indian population of C. ulmeriana showcases variability, including slight changes in the shape of forceps in the male subimago and increased denticulation in the midclaw, a reduced number of setae in the Y-ridge of tergalius II, and differing shape of sternum IX in the larvae compared to other continental and island populations. The species number of Caenis Stephens, 1835 has now increased to twelve in India. A distributional map detailing the range of C. ulmeriana in the Oriental region is also provided herein.
Keywords
Caenis; mayflies; morphological variability; new record; Tamil Nadu
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