Mulata — Miguel Asturias

Title from Miguel Angel Asturias. The plot follows a poor farmer (name forgotten by me) who starts out dissatisfied with his economic state and makes a deal with Tazol, the corn-husk devil, an enigmatic being whose first request of him is that he go to market with his fly open to lead the town's women into temptation (thus the title of the other translation, "the Mulata and Mr. Fly").