Research ArticleOpen AccessGoogle Scholar indexed
First Description of Adults of Cincticostella insolta (Allen, 1971) (Ephemeroptera: Ephemerellidae)
Institute of Eastern-Himalaya Biodiversity Research, Dali University, Dali, China
Qingdao Dewey Experimental School, Qingdao, China
High School Attached to Shandong Normal University, Jinan, China
Jinan Foreign Language School, Jinan, China
Lancaster Country Day School, Lancaster, USA
Jinan Foreign Language School, Jinan, China
Shandong Experimental High School, Jinan, China
Institute of Eastern-Himalaya Biodiversity Research, Dali University, Dali, China
Center for Interdisciplinary Sciences, Dali University, Dali, China
Collaborative Innovation Center for Biodiversity and Conservation in the Three Parallel Rivers Region of China, Dali University, Dali, China
Research Center of Ecology and Governance for Er’hai Lake Streams, Dali, China
- 1 Institute of Eastern-Himalaya Biodiversity Research, Dali University, Dali, China
- 2 Qingdao Dewey Experimental School, Qingdao, China
- 3 High School Attached to Shandong Normal University, Jinan, China
- 4 Jinan Foreign Language School, Jinan, China
- 5 Lancaster Country Day School, Lancaster, USA
- 6 Jinan Foreign Language School, Jinan, China
- 7 Shandong Experimental High School, Jinan, China
- 8 Institute of Eastern-Himalaya Biodiversity Research, Dali University, Dali, China
- 9 Center for Interdisciplinary Sciences, Dali University, Dali, China
- 10 Collaborative Innovation Center for Biodiversity and Conservation in the Three Parallel Rivers Region of China, Dali University, Dali, China
- 11 Research Center of Ecology and Governance for Er’hai Lake Streams, Dali, China
Open Journal of Ecology·Volume 15 (2025)·Pages 907–926·Published 4 December 2025·DOI10.4236/oje.2025.1512051
Copy link · social · email
Abstract
The adults of Cincticostella insolta (Allen, 1971) (Ephemeroptera: Ephemerel-lidae) are described and illustrated for the first time. Adults were successfully reared from mature nymphs collected in spring 2025. Species of the insolta complex share characteristic wing coloration in the subimaginal stage, as well as lateral scutellar projections in both subimaginal and imaginal stages. However, male adults of the insolta complex exhibit pronounced interspecific differences, particularly in body size, the structure of tergum IX, penis lobes, forceps morphology, and forewing venation.
KeywordsSpiny Crawler MayfliesMorphologyTaxonomyWinged StagesHengduan MountainsHimalayaChina
- Allen, R.K. (1971) New Asian Ephemerella with Notes (Ephemeroptera: Ephemerellidae). The Canadian Entomologist , 103, 512-528. https://doi.org/10.4039/ent103512-4
- Allen, R.K. (1980) Geographic Distribution and Reclassification of the Subfamily Ephemerellinae (Ephemeroptera: Ephemerellidae). In: Flannagan, J.F. and Marshall, K.E., Eds., Advances in Ephemeroptera Biology , Plenum Press, 71-91. https://doi.org/10.1007/978-1-4613-3066-0_6
- Xie, H., Jia, Y., Chen, P., Jacobus, L.M. and Zhou, C. (2009) Two New Cincticostella Species from China with a Larval Key to Species of the Genus (Ephemeroptera: Ephemerellidae). Zootaxa , 2299, 53-61. https://doi.org/10.11646/zootaxa.2299.1.5
- Martynov, A.V., Selvakumar, C., Subramanian, K.A., Sivaramakrishnan, K.G., Chandra, K., Palatov, D.M., et al. (2019) Review of the Cincticostella insolta (Allen, 1971) Complex (Ephemeroptera: Ephemerellidae), with Description of Three New Species from Northern India and Nepal. Zootaxa , 4551, 147-179. https://doi.org/10.11646/zootaxa.4551.2.2
- Martynov, A.V., Selvakumar, C., Palatov, D.M., Subramanian, K.A., Sivaramakrishnan, K.G., Vasanth, M., et al . (2021) Overview of Indian and Nepali Representatives of the Cincticostella nigra (Uéno, 1928) Complex (Ephemeroptera, Ephemerellidae), with Discussion about Cincticostella Allen, 1971 Species Complexes. ZooKeys , 1040, 123-166. https://doi.org/10.3897/zookeys.1040.64280
- Auychinda, C., Sartori, M. and Boonsoong, B. (2022) Cincticostella ebura sp. nov., a New Species of Mayfly (Ephemeroptera, Ephemerellidae) from Thailand. ZooKeys , 1130, 191-204. https://doi.org/10.3897/zookeys.1130.91039
- Sun, Y., Yang, R., Tan, Z., Li, X. and Jacobus, L.M. (2024) A New Species of Cincticostella Allen, 1971 (Ephemeroptera, Ephemerellidae) from Yunnan, China and Establishment of a New Species Complex. ZooKeys , 1205, 349-371. https://doi.org/10.3897/zookeys.1205.125639
- Auychinda, C., Buchawongpiwat, N., Sartori, M. and Boonsoong, B. (2025) A New Species of Cincticostella Allen, 1971 (Ephemeroptera: Ephemerellidae) from Thailand. Aquatic In sects . https://doi.org/10.1080/01650424.2025.2492586
- Ishiwata, S. (2003) A Revision of the Genus Cincticostella (Insecta: Ephemeroptera: Ephemerellidae) from Japan. Species Diversity , 8, 311-346. https://doi.org/10.12782/specdiv.8.311
- Uéno, M. (1928) Some Japanese Mayfly Nymphs. Memoirs of the College of Science , Kyoto Imperial University , Ser ies B , 4, 19-63.