A comprehensive literature review and examination of mayfly materials from Northeast China resulted in the recognition of 65 species, 28 genera, and 12 families of Ephemeroptera. Checklist, original reference sources, larval diagnoses, measurements, materials examined, distributions, and taxonomic remarks are provided. Macro-photos of larval body (dorsal view) and line-drawings of larval key characters are also provided.

• Quan, Yong-Tai(Department of Biology, Harbin Normal University)
• Bae, Yeon-Jae(Department of Biology, Seoul Women's University)
• Jung, Jong-Chul(Department of Biology, Yeungnam University)
• Lee, Jong-Wook(Department of Biology, Yeungnam University)