The Entomological Society of Iran Journal of Insect Biodiversity and Systematics 2423-8112 10 2 2024 03 10 Baetiella muchei (Braasch, 1978) (Ephemeroptera: Baetidae) new to India, with reference to the morphological variability of the larvae 311 319 20591 10.61186/jibs.10.2.311 EN Thambiratnam Sivaruban PG & Research Department of Zoology, The American College, Madurai-625002, India 0000-0001-8997-9355 Asha Sohil PG Department of Environmental Sciences, University of Jammu, Jammu & Kashmir-180006, India 0000-0003-3632-4165 Pandiarajan Srinivasan PG & Research Department of Zoology, The American College, Madurai-625002, India 0000-0001-8118-3256 Sivaruban Barathy Department of Zoology, Fatima College, Madurai-625018, India 0000-0002-9464-6464 Neeraj Sharma Institute of Mountain Environment, Bhaderwah campus, University of Jammu, Jammu& Kashmir-182222, India Rajasekaran Isack PG & Research Department of Zoology, The American College, Madurai-625002, India 0000-0002-9952-4335 Journal Article 2023 11 12 Baetiella muchei (Braasch, 1978) is recorded for the first time from the Neeru stream of Jammu and Kashmir, India. The variability in larval characters such as size, the shape of the labrum, and the number of the sub-marginal arc of setae in the labrum differs from 12 to 22, degree of fusion of the mandibular incisors, spines on the distal margin of the tergites, distal margin of the paraproct, and the length of cerci are observed from the Indian population when compared to the type specimens. The species number of Baetiella Uéno, 1931 has now increased to six in India. A distributional map of this species is also provided. https://jibs.modares.ac.ir/article_20591_2de8d3829c34f96ae608052ecd132895.pdf