Costa Rica to Argentina. Costa Rica: seasonally dry areas of northwestern lowlands.
In Costa Rica, this species appears to be an inhabitant of open, disturbed areas in the seasonally dry areas of northwestern Costa Rica. I know it from two collections of foragers, one from a city park in the middle of Liberia, and one from sweepnetting scrubby roadside vegetation along the road to Monteverde, near the PanAmerican highway. I have never seen a nest.
blandus. Formica blanda Smith, F. 1858b: 43 (w.) BRAZIL. Combination in Camponotus: Roger, 1863b: 5; in C. (Myrmocamelus): Forel, 1913l: 249; in C. (Myrmaphaenus): Emery, 1920b: 256. Current subspecies: nominal plus aequinotus, denudatus, pronotalis.
Smith, F. 1858. Catalogue of hymenopterous insects in the collection of the British Museum. Part VI. Formicidae. London: British Museum, 216 pp.