Key to the known female nymphs of Indian Sparsorythus:

1. Wing pads reaching to the abdominal segment III of female................................................... 2

- Wing pads reaching to the abdominal segment V of female................................... S. sivaramakrishnani

2. Absence of subapical teeth on claws........................................................ S. nanjangudensis

- Presence of subapical teeth on claws...................................................................... 3

3. Absence of lateral setae on the caudal filaments...................................................... S. gracilis

- Presence of lateral setae on the caudal filaments................................................ S. srokai sp. nov.