Pheidole biconstricta subsp. simplex Wheeler, 1925a: 21 (s.) PERU. Neotropic.

Primary type information: Primary type material: lectotype major worker (by designation of Wilson, 2003a: 148). Primary type locality: lectotype Peru: Llinquipata (N. Holmgren). Type depositories: MCZC, NHRS (depository of lectotype is not stated). Secondary type information: Secondary type locality: same as for lectotype. Type depositories: MCZC, NHRS (depository of lectotype is not stated). Type notes: 1) Original description cites 3 syntype major workers. 2) Wilson, 2003a: 148, designated a paralectotype minor worker from Brazil: Aleixo, nr Manaus; neither the caste nor the locality appear in the original description.