Wallacea, Baly, 1858

Sekerka, Lukáš, 2015, Wallacea, Pistosia and Neodownesia: three distinct genera and their tribal placement (Coleoptera: Chrysomelidae: Cassidinae), Acta Entomologica Musei Nationalis Pragae 55 (2), pp. 713-743 : 717

Wallacea , Pistosia , and Neodownesia – three distinct genera

WÜRMLI (1975) considered the differences between these taxa as minor and synonymized all three genera. However he completely overlooked the structure of the antennae and mouthparts. Pistosia has tubular filiform antennae with individual antennomeres parallel-sided and large mandibles with cutting edge (like Bothryonopa ) while Wallacea and Neodownesia have submoniliform antennae with antennomeres distinctly constricted at base and widening apically and smaller mandibles with teeth. For additional information see differential diagnoses under each genus.