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

Srinivasan, Pandiarajan; Sivaruban, Thambiratnam; Barathy, Sivaruban; Isack, Rajasekaran

doi:10.61186/jibs.10.3.443

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

Document Type : Research Article

Authors

Pandiarajan Srinivasan ¹

Thambiratnam Sivaruban ¹

Sivaruban Barathy ²

Rajasekaran Isack ¹

¹ PG & Research Department of Zoology, The American College, Madurai-625002, India

² Department of Zoology, Fatima College, Madurai-625018, India

10.61186/jibs.10.3.443

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.

Graphical Abstract

Keywords

Caenis

mayflies

morphological variability

new record

Tamil Nadu

Balasubramanian, C. & Muthukatturaja, M. (2021) Two additional new species of Clypeocaenis Soldán, 1978 (Ephemeroptera: Caenidae) from the Western Ghats of Peninsular India. Zootaxa, 4915 (3), 377-388. [DOI:10.11646/zootaxa.4915.3.6]

Kluge, N.J. (2004) The phylogenetic system of Ephemeroptera. Springer, Dordrecht. 456 p. [DOI:10.1007/978-94-007-0872-3]

Malzacher, P. (1991) Genital-morphological features in the Caenidae. In: Alba-Tercedor, J. & Sánchez-Ortega, A. (eds) Overview and Strategies of Ephemeroptera and Plecoptera. Sandhill Crane Press, Gainesville, Florida, pp. 73-85.

Malzacher, P. (2015) Revision of the Oriental species of the genus Caenis Stephens (Insecta: Ephemeroptera: Caenidae). Stuttgarter Beiträge zur Naturkunde A, Neue Serie, 8, 27-47.

Malzacher, P. (2022) Trait evolution of the male genitalia in the speciose genus Caenis, with emphasis on forcipes structure (Insecta: Ephemeroptera: Caenidae). Integrative Systematics: Stuttgart Contributions to Natural History, 5 (1), 1-16. [DOI:10.18476/2022.253690]

Malzacher, P. (2023) Four new species of Elatosara (Ephemeroptera: Caenidae) from Myanmar and the Philippines. Integrative Systematics: Stuttgart Contributions to Natural History, 6 (2), 45-54. [DOI:10.18476/2023.456049]

Malzacher, P. & Sangpradub, N. (2021) New mayfly species of Caenis and Kalimaenis from Thailand and descriptions of two new genera of the subfamily Caeninae (Ephemeroptera: Caenidae). Integrative Systematics: Stuttgart Contributions to Natural History, 3 (1), 1-33. [DOI:10.18476/insy.v03.a1]

Muthukatturaja, M. & Balasubramanian, C. (2021) A new species of Caenis Stephens, 1835 (Ephemeroptera: Caenidae) from Tamil Nadu, Southern India. Zootaxa, 4980 (2), 366-372. [DOI:10.11646/zootaxa.4980.2.7]

Muthukatturaja, M., Balasubramanian, C. & Murugan, A. (2020) Two new species of Clypeocaenis (Ephemeroptera: Caenidae) from Western Ghats, Southern India. Zootaxa, 4722 (4), 361-370. [DOI:10.11646/zootaxa.4722.4.5]

Myers, N., Mittermeier, R.A., Mittermeier, C.G., Da Fonseca, G.A. & Kent, J. (2000) Biodiversity hotspots for conservation priorities. Nature, 403 (6772), 853. [DOI:10.1038/35002501]

Peckarsky, B.L., Taylor, B.W., McIntosh, A.R., McPeek, M.A. & Lytle, D.A. (2001) Variation in mayfly size at metamorphosis as a developmental response to risk of predation. Ecology, 82 (3), 740-757. [DOI:10.1890/0012-9658(2001)082[0740:VIMSAM]2.0.CO;2]

Sivaramakrishnan, K.G., Selvakumar, C., Vasanth, M. & Subramanian, K.A. (2023) Factors structuring patterns of Ephemeroptera (mayflies) species assemblages in different segments of the Western Ghats of peninsular India-a snapshot. Zoosymposia, 24, 57-69. [DOI:10.11646/zoosymposia.24.1.7]

Shorthouse, D.P. (2010) SimpleMappr, an online tool to produce publication-quality point maps. Available online from http://www.simplemappr.net [Accessed 17th March 2024]

Srinivasan, P., Sivaruban, T., Barathy, S., Malzacher, P. & Isack, R. (2021) A new charismatic Caenis Stephens, 1835 (Ephemeroptera: Caenidae) from Southern India. Zootaxa, 4926 (1), 105-116. [DOI:10.11646/zootaxa.4926.1.7]

Srinivasan, P., Sivaruban, T., Barathy, S., Isack R. & Jacobus, L.M. (2022) A new species of Clypeocaenis Soldán 1978 (Ephemeroptera: Caenidae) from Tamil Nadu, India. Zootaxa, 5091 (3), 467-476. [DOI:10.11646/zootaxa.5091.3.6]

Srinivasan, P., Sivaruban, T., Barathy, S. & Isack, R. (2023a) A new species of Caenis Stephens, 1835 and description of male subimaginal characters of Caenis americani Srinivasan et al., 2021 (Ephemeroptera: Caenidae) from the Western Ghats, South India. Aquatic Insects, 44 (4), 235-249. [DOI:10.1080/01650424.2022.2162085]

Srinivasan, P., Sivaruban, T., Barathy, S. & Isack, R. (2023b) Contribution to the knowledge of family Caenidae (Insecta: Ephemeroptera) from Madurai District, Tamil Nadu. Zootaxa, 5258 (1), 39-75. [DOI:10.11646/zootaxa.5258.1.2]

Staniczek, A.H., Malzacher, P., Bojková, J., Sroka, P., Soldán, T., Namin, J.I. & Godunko, R.J. (2020) Caenidae (Insecta: Ephemeroptera) of Iran, with new records and re-description of the nymph of Caenis kopetdagi Kluge, 1985. Aquatic Insects, 41 (2), 106-130. [DOI:10.1080/01650424.2020.1735449]