Pheidole medialis Wilson, 2003a: 208, figs. (s.w.) COSTA RICA. Neotropic.

Primary type information: Primary type material: holotype major worker. Primary type locality: Costa Rica: Cartago Prov., El Alto de Ochomogo, 5 km. E Tres Rios (J. Welch). Primary type depository: INBC. Secondary type information: Secondary type material: 1 paratype minor worker. Secondary type locality: same as for holotype. Secondary type depository: INBC. Type notes: Details of paratype castes and their numbers are not given.