Description of the larvae of Cotinis aliena Woodruff, 2008 (Coleoptera: Scarabaeidae: Cetoniinae: Gymnetini), with a key to the known larvae of New World Gymnetini.

The larvae of Cotinis aliena Woodruff, 2008 (Coleoptera: Scarabaeidae: Cetoniinae: Gymnetini), from the type locality in the Florida Keys (United States of America), are described and illustrated for the first time and compared with the known larvae of other Cotinis Burmeister, 1842 species. A revised key to the known third instars of New World Gymnetini is provided.