Key to American Cryptopone workers

This key to workers of Cryptopone from North and Central America is based on Branstetter & Longino (2022).

1

 * HW > 0.8–0.96; petiolar node in side view relatively more tapering dorsally, ventral margin of petiole and anteroventral petiolar process relatively shallower (Fig. 8A); cloud forests of Guatemala and Honduras Cryptopone gilvagrande
 * HW < 0.82; petiolar node less tapering, ventral margin of petiole and anteroventral petiolar process relatively more convex (Fig. 8B–F); USA to Costa Rica

2

 * HW 0.74–0.80; southeastern USA Cryptopone gilva
 * HW 0.57–0.82; Mexico to Costa Rica

3

 * Petiolar node in side view slightly more tapering and rounded dorsally (Fig. 8B and C); HW 0.60–0.82; Puebla to Oaxaca, Mexico Cryptopone gilvatumida
 * Petiolar node in side view slightly less tapering and more truncate dorsally (Fig. 8D–F); HW 0.57-0.73; Puebla, Mexico, south to Costa Rica Cryptopone guatemalensis