Lang's Short-tailed Blue

Leptotes pirithous is a small butterfly with a wingspan of 21–29 mm in males and 24–30 mm in females. The uppersides of the wings are purple bluish in males, bluish-brown in female. The undersides are dark beige striped with white lines. The hindwings show marginal orange and black spots and two small tails. For the design of the undersides of the wings they can be confused with Lampides boeticus and Cacyreus marshalli. These butterflies fly from February to November depending on the location. They are regular migrants.