Arthropoda:Insecta:Ephemeroptera

Table 1: Diversity of Ephemeroptera in States of India Endemism: 174 species are endemic to India.High endemism is reported from the Western Ghats hill streams of Tamil Nadu, Kerala, Karnataka and hill streams of Himachal Pradesh and Arunachal Pradesh.Habitat: The larval stages are found in streams, rivers, lakes, ponds and other freshwater wetlands.Ecological Significance: They are an important component of freshwater food chain and prey source to freshwater fishes, wetland birds and other aquatic invertebrate predators.They are highly sensitive to water quality and are reliable indicators of freshwater ecosystem health.Human Significance: Mayflies are widely used in biomonitoring wetland ecosystems.Threatened species: Species from India are not assessed for IUCN threat categories.Protected Species as per WPA (2022):