Leptothorax curvispinosus Mayr, 1866a: 508, pl., fig. 13 (w.) NORTH AMERICA. Nearctic.

Primary type information: Primary type material: syntype workers (number not stated). Primary type locality: “Nordamerika”: (no further data). Primary type depositories: MSNG, NNML (perhaps also NHMW). Type notes: 1) Wheeler, 1903d: 240, gives type locality as, “?District of Columbia”. 2) Mackay, 2000: 338, says specimens could not be located in Roger’s collection in MNHU, but in the original description Mayr, 1866a comments that they are “im zoologischen Museum in Leyden” (NNML).