Smithistruma (Smithistruma) castanea Brown, 1953g: 107 (w.) COLOMBIA. Neotropic.

Primary type information: Primary type material: holotype worker. Primary type locality: Colombia.: U.S. Plant Quarantine, no. EQA 432835. Lot No. 37-23832, Colombia, 10.i.1937, on orchid pseudobulb (no collector’s name). Primary type depository: USNM. Secondary type information: Secondary type material: 4 paratype workers. Secondary type locality: same as for holotype. Secondary type depositories: MCZC, USNM.