Ixtlilton.

This deity has been included in the "Centeotl-Xochipilli Complex" of contact-period Central Mexican deities (Nicholson 1971: 416–419). More specifically, he belonged with the Macuiltonaleque, the young solar deities who presided over flowers, feasting, singing, dancing, gaming, and painting and who bore the names of the five tonalpohualli days assigned to the south, with numerical coefficients of five (the number signifying "excess"). Their most prominent member with Macuilxochitl, "Five Flower."
Fray Bernardino de Sahagún, Primeros Memoriales, ed. Thelma D. Sullivan, et al. (Norman: University of Oklahoma Press, 1997), 101.

a solar fertility god (central Mexico, sixteenth century)
Thelma Sullivan, "Tlatoani and tlatocayotl in the Sahagún manuscripts," Estudios de Cultura Nahuatl 14 (1980), 225–238. See esp. p. 231.

Ixtlilton had been impersonated by someone who visited people's homes for dancing, eating, and drinking of "new wine" (an alcoholic beverage that had been covered for four days). But if the new wine had gotten dirty with cobwebs, straw, or charcoal, then the responsible person was seen to be an adulterer, a thief, or a monster, and he had to wear a mantle (quachtli) called the ixquen, or face covering.
Fr. Bernardino de Sahagún, Florentine Codex: General History of the Things of New Spain; Book 1 -- The Gods; No. 14, Part 2, eds. and transl. Arthur J. O. Anderson and Charles E. Dibble (Santa Fe and Salt Lake City: School of American Research and the University of Utah, 1950), 15.