Most likely genus Pyrgus. I'm not sure about the species. For me, it's difficult to distinguish between different Pyrgus species like P. communis, P. adepta, P. albescens and P. oileus. Please help with ID. Many thanks to Gary & Tanya Mass for help with ID. Tropica Checkered-Skipper (Pyrgus oileus), male.
Taxco, Guerrero, Mexico.