[ad. med.L. formīcāri-um, neut. sing. of *formīcārius pertaining to ants. f. L. formīca ant.] An ants nest, ant-hill.
1826. Kirby & Sp., Entomol. (1843), II. 47. Being seized at the moment of fecundation, they are conducted into the interior of the formicary, when they become entirely dependent upon the neuters.
1880. Lubbock, in Jrnl. Linn. Soc., XV. No. 83. 176. The queen was alone within an artificial glass formicary, and several workers were introduced.