Forelius foetidus subsp. keiferi Wheeler, 1934f: 141 (w.q.m.) MEXICO (Revillagigedo Is). Neotropic.

Primary type information: Primary type material: syntype workers, syntype queens (numbers not stated, “numerous”), 4 syntype males. Primary type localities: Mexico: Revillagigedo Is, Socorro I., Braithwaite Bay, 10.v.1925 (H.H. Keifer), Socorro I. (?), Grayson Cove, 2.v.1925 (H.H. Keifer). Primary type depositories: LACM, MCZC, MHNG, USNM. Type notes: Shattuck, 1994: 94, cites 6 worker, 6 queen, 1 male syntypes.