Clypeocaenis Soldán, 1978

Balasubramanian, Chelliah & Muthukatturaja, Marimuthu, 2021, Two additional new species of Clypeocaenis Soldán, 1978 (Ephemeroptera Caenidae) from the Western Ghats of Peninsular India, Zootaxa 4915 (3), pp. 377-388 : 387

Key for nymphs of Oriental Clypeocaenis Soldán, 1978

1. Clypeal protrusion with 2 setae.......................................................................... 2

- Clypeal protrusion with more than 2 (at least 4) setae.......................... Clypeocaenis multisetosa Soldán, 1978

2. Fore femora with subapical row of spines.................................................................. 3

- Fore femora without subapical row of spines and subapical group of spines on outer margin.................................................................................................. Clypeocaenis bisetosa Soldán, 1978

3. Margins of femora with long bristles...................................................................... 4

- Margins of femora with short spines...................................................................... 5

4. Dorsal surface of femora with a complete transverse row of lanceolate setae located 2/3 distance from the base....................................................... Clypeocaenis sharadhae Balasubramanian & Muthukatturaja, 2020

- Dorsal surface of femora with incomplete transverse row of bifid setae located 2/3 distance from the base........................................................................................... Clypeocaenis napoklu sp. nov.

5. Dorsal surface of femora with a complete transverse row of bifid setae located 3/4 distance from the base............................................................................................. Clypeocaenis kaveri sp. nov.

- Dorsal surface of femora with incomplete transverse row of bifid setae located 3/4 distance from the base............................................................ Clypeocaenis gayathri Balasubramanian & Muthukatturaja, 2020