Formica didyma Fabricius, 1782 incertae sedis in genus, unidentifiable
Formica didyma Fabricius, 1782: 489 (w.) ITALY. Palearctic.
Primary type information: Primary type material: syntype workers (number not stated). Primary type locality: Italy: “Habitat in Italia. D. Allioni.” (no further data). Primary type depository: ZMUK. Type notes: 1) Zimsen, 1964: 424, cites 2 workers in ZMUK. 2) Olivier, 1792: 492, says that Formica didyma, “ressemble à la Fourmi fauve” (= Formica rufa).
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