Key to the Indian species of incana group 1. Setae on elytra sparse; costae not demarcated (Fig. 11); pygidium bifurcate at apex, apical edges straight at outer margin (Fig. 23); parameres broader medially, outer edge semi–circular, apex straight (in dorsal view) (Fig. 51), apex pointed (in lateral view) (Fig. 63)................................................................... M. flabellata Sharp, 1876 – Setae on elytra dense; costae demarcated (Fig. 12); pygidium bifurcate at apex, apical edges curved outwardly at outer margin (Fig. 24); parameres relatively narrow medially, outer edge and apex nearly curved (in dorsal view) (Fig. 52), apex broad (in lateral view) (Fig. 64)............................................................ M. furcicauda Ancey, 1881

Published as part of Gupta, Devanshu, Keith, Denis, Bhunia, Debika, Das, Priyanka, Ghosh, Joyjit & Chandra, Kailash, 2023, Review of Melolontha Fabricius, 1775 (Coleoptera: Scarabaeidae: Melolonthinae) from India with the description of two new species, pp. 191-216 in Zootaxa 5263 (2) on page 212, DOI: 10.11646/zootaxa.5263.2.2, http://zenodo.org/record/7800978