''Chirgus barrosi'' is a species of

butterfly Butterflies are insects in the macrolepidopteran clade Rhopalocera from the order Lepidoptera, which also includes moths. Adult butterflies have large, often brightly coloured wings, and conspicuous, fluttering flight. The group comprises ...

of the family of

Hesperiidae Skippers are a family of the Lepidoptera (moths and butterflies) named the Hesperiidae. Being diurnal, they are generally called butterflies. They were previously placed in a separate superfamily, Hesperioidea; however, the most recent taxonomy ...

, first described in 1956 by Emilio Ureta. It is known from Chile, where it is found at high altitudes in sandy locations with

leguminous A legume () is a plant in the family Fabaceae (or Leguminosae), or the fruit or seed of such a plant. When used as a dry grain, the seed is also called a pulse. Legumes are grown agriculturally, primarily for human consumption, for livestock fo ...

plants. The species was previously placed in genus ''

Pyrgus ''Pyrgus'' is a genus in the skippers butterfly family, Hesperiidae, known as the grizzled skippers. The name "checkered" or "chequered skipper" may also be applied to some species, but also refers to species in the genera ''Burnsius'' and '' ...

'', but was, alongside several other species formerly in ''Pyrgus'', transferred to newly-erected genus ''

Chirgus ''Chirgus'' is a genus of checkered-skippers, white-skippers, and allies in the butterfly family Hesperiidae, found in the New World. The genus was erected by Nick V. Grishin in 2019. There are about six described species in ''Chirgus''. As a re ...

'' in 2019.

References

Pyrginae Hesperiidae of South America Butterflies described in 1956 Endemic fauna of Chile {{Pyrginae-stub