See an image that represents xicolli in the Visual Lexicon of Aztec Hieroglyphs, ed. Stephanie Wood (Eugene, Ore.: Wired Humanities, 2020-present).
yoan xicolli, çan tlacuilolli in itenixio, hivitica tenpoçonqui = and a sleeveless jacket, painted all over, with eyes on its border and teased feathers at the fringe
James Lockhart, We People Here: Nahuatl Accounts of the Conquest of Mexico, Repertorium Columbianum v. 1 (Los Angeles: UCLA Center for Medieval and Renaissance Studies, 1993), 66.
conmaquiaya yn ixicol, ioã inpapalotilma yn imiyeteco. = They wore their xicolli and their butterfly capes, and [they had] their tobacco gourds.
Fray Bernardino de Sahagún, Primeros Memoriales, ed. Thelma D. Sullivan, et al. (Norman: University of Oklahoma Press, 1997), 62.
Sleeveless tunics (xiculli) are given as some of the essential items found in the "devil's houses."
Fray Bernardino de Sahagún, Primeros Memoriales, ed. Thelma D. Sullivan, et al. (Norman: University of Oklahoma Press, 1997), 117.
Naztauh, nomecaxicol. Quitoznequi: inic onechtequimacac in altepetl: ic in itlacauh oninochiuh intla niquitlacoz, intla itla ic nicouitiliz: nictzactiaz. = My heron-feather headdress, my jacket of ropes. This means: When the city gives me a responsibility I become a slave. If I hurt the city in some way, if I endanger it, I shall be put in jail.
Thelma D. Sullivan, "Nahuatl Proverbs, Conundrums, and Metaphors, Collected by Sahagún," Estudios de Cultura Náhuatl 4 (1963), 140–141.
When a tlatoani was invested in office, he was dressed in a green cape that had the same design of bones as that of the figure of Huitzilopochtli in the festival of Toxcatl. This was a festival in honor of Tezcatlipoca. Huitzilopochtli was identified with Tezcatlipoca. (central Mexico, sixteenth century)
Thelma Sullivan, "Tlatoani and tlatocayotl in the Sahagún manuscripts," Estudios de Cultura Nahuatl 14 (1980), 225–238. See esp. p. 229.
La Trinidad Xicolla (a place name) was part of the religious jurisdiction of Tacuba.
Emma Pérez Rocha, "Organización religiosa de la villa de Tacuba y sus cofradías rurales en el siglo XVIII," Dimensión Antropológica 4 (1995), 87-112, https://www.dimensionantropologica.inah.gob.mx/?p=1514