Forelius pusillus Santschi, 1922 junior synonym of current valid taxon Forelius heyeri (Forel, 1902)
Forelius breviscapus var. pusilla Santschi, 1922c: 374 (w.) ARGENTINA (Córdoba). Neotropic.
Primary type information: Primary type material: syntype workers (number not stated). Primary type locality: Argentina: Córdoba (Biraben). Primary type depository: NHMB. Primary type specimen: CASENT0911547. Type notes: Shattuck, 1994: 93, cites 4 worker syntypes; Cuezzo, 2000: 265, cites workers from Buenos Aires and Santa Fé, but these localities do not occur in the original description.
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