Sylvicola dubius has antennae with the base yellow and flagellum entirely dark. S. neozelandicus has the antennae base and flagellum pale yellow, the latter being darkened apically.

Sylvicola dubius has antennae with the base yellow and flagellum entirely dark. S. neozelandicus has the antennae base and flagellum pale yellow, the latter being darkened apically.