Primary type information:
Primary type material: holotype worker. Primary type locality: U.S.A.: Nevada, Washoe County, N end Pah Rah Mts (Nevada highway 33), Pyramid Mining Dist., Nevada Dominion Mine, 5 mi. W Mullen Gap (Pyramid Lake), 7.iv.1951 (I. La Rivers). Primary type depository: USNM.
Secondary type information:
Secondary type material: 37 paratype workers. Secondary type locality: same as for holotype. Secondary type depositories: AMNH, LACM, MCZC, USNM.
Type notes:
1) Smith, 1951d: 93, says 10 queens, 5 males from the type series have not been described through lack of good characters for recognition. 2) Smith, 1951d: 93, says 12 paratype workers are in I. La Rivers collection; whereabouts unknown (perhaps DRIR).