Key to species of Antoinettia

1. Pronotum with two central spots; elytra with banding pattern (Fig. 7); brachypterous, hindwings lacking apical fold (Fig. 6); Guatemala ..................................... A. huhnei Skelley, n. sp.

— Pronotum with two stripes connected to the posterior margin, possibly to each other as one (Fig. 12, 17); each elytron with two central spots, not banded; hind wings fully developed................... 2

2(1). Pronotum with large single or doubled central stripe connecting anterior and posterior margins; elytra with humeral spot (Fig. 12); Mexico ................................... A. audbala (Skelley)

— Pronotum with two central stripes, connected to posterior margin but not or weakly connected to anterior margin; elytra without humeral spot (Fig. 17); Belize ................. A. kovariki (Skelley)