Labidus nigrescens Cresson, 1872 an obsolete combination of Neivamyrmex nigrescens (Cresson, 1872)
Labidus nigrescens Cresson, 1872: 194 (m.) U.S.A. (Texas). Nearctic.
Primary type information: Type-material: holotype male. Type-locality: U.S.A.: Texas, Bosque County (G.W. Belfrage). Type-depository: ANSP.
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