Sonorella painteri, new species is described from the San Luis Mountains, Hidalgo County, New Mexico, U.S.A. Based on comparative studies of shell characters and genitalia, Sonorella hachitana flora Pilsbry & Ferriss, 1915 and Sonorella hachitana peloncillensis Pilsbry & Ferriss, 1915 from southwestern New Mexico are elevated to full species rank.

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