Cryptocerus fossithorax Santschi, 1921 an obsolete combination of Cephalotes fossithorax (Santschi, 1921)
Cryptocerus fossithorax Santschi, 1921h: 125, fig. 1 (s.w.) ARGENTINA (Rio Negro). Neotropic.
Primary type information: Primary type material: 1 syntype soldier, syntype workers (number not stated). Primary type locality: Argentina: Río Negro (Hildemann). Primary type depositories: MZSP, NHMB (other possible syntypes in MACN).
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