Larvae of Hemiargus hanno (Stoll, 1790) (Lepidoptera, Lycaenidae, Polyommatinae) are for the first time reported to be attended under field conditions by ants of the formicine genus Brachymyrmex Mayr, 1868 (Myrmelachistini). Structural features of the last instar larva and pupa of H. hanno are described and illustrated with the aid of scanning electron microscopy (SEM).
Lycaenidae; Polyommatinae; Hemiargus; Brachymyrmex; immature stages; scanning electron microscopy; morphology; myrmecophily