Key to Wadeura workers

This key to workers of Wadeura is based on Branstetter & Longino (2022).

1

 * Mandible strongly falcate (Fig. 13A); ventral margin of petiole a deep, evenly convex lobe (Fig. 14A); common species from Mexico to Brazil and Peru  Wadeura guianensis
 * Mandible triangular (Fig. 13B–D); ventral margin of petiole less symmetrical (Fig. 14B–D); rare species from South America

2

 * Ventral margin of petiole a triangular lobe with pronounced anterior tooth (Fig. 14 B)  Wadeura pauli
 * Ventral margin of petiole a shallow lobe lacking anterior tooth (Fig. 14C and D)

3

 * Triangular projection of medial clypeus prominent, projecting beyond the outline of the clypeolabral juncture in full face view (Fig. 13C); HW > 0.8 Wadeura holmgreni
 * Triangular projection of medial clypeus smaller, not projecting beyond the outline of the clypeolabral juncture (Fig. 13D); HW < 0.8 Wadeura holmgrenita