Ministrymon azia, Gray Ministreak, is a butterfly in the Lycaenidae family. It is found from the southern United States to southern Brazil, Paraguay and Argentina. It is found in virtually all lowland habitats, ranging from deserts in coastal Peru and Chile to rainforests in the Amazon Basin.

The wingspan is 16-24 mm. The wings are grey. There is a narrow postmedian line of orange bordered with white on the underside of the hindwings. Adults are on wing from March to September in Florida and Texas, but year round in most of the tropics. Adults feed on the nectar of various flowers, including Leucaena leucocephala, Melilotus alba, Cynoglossum amabile, Bidens alba, Turnera ulmifolia, Mimosa pudica and Acacia species.^[2]

The larvae feed on the flowers of a wide variety of Fabaceae, including Acacia, Mimosa (including Mimosa malacophylla) and Leucaena species (including Leucaena leucocephala), as well as Lysiloma bahamensis.