The Long-winged Greenstreak (Cyanophrys longula) is a butterfly in the Lycaenidae family. It is found in Mexico, with strays recorded from south-eastern Arizona. It has also been recorded from Hawaii. The wingspan is 21–30 mm. Adults are on wing from March to May and from August to December in Mexico. The larvae feed on a wide range of plants, including species from the Asteraceae and Verbenaceae families.