Butterflies of the families Satyridac and Acracidac, collected from different forest areas of Bangladesh, have been identified. In Satyridac, there are ten species belonging to six genera. These include : Mycalesis mystes, M.
persons, M. sp., Elymnias hypermnestra, Melanitis leda, Orsotrioena medus, Erebia nirniala, E. narasingha, Ypthima chcnui and Y. philomela. In Acracidac, there is only one species, viz. Acraca violae. A taxonomic key has been developed for distinguishing the families, genera and species. The locality of collection of each species in different forest areas and its importance to forestry in Bangladesh have been noted.