The first queen-worker association for Cretaceous Formicidae: the winged caste of .

Two queen ant specimens, one alate and one dealate, from mid-Cretaceous (Late Albian-Early Cenomanian) Burmese amber are herein reported as belonging Dlussky, 1996. This is the first discovery and documentation of an alate queen in . Compared with workers of , alate and dealate queens are larger in body size, have smaller compound eyes, a longer antennal scape, more complex mandibles, and a relatively large-sized metasoma. It is hypothesized that these differences are due to caste differences.