Titi to the great diversity found across titi monkey species, a new genus-level taxonomy was recently proposed that recognises three genera within the subfamily Callicebinae; "Cheracebus" Byrne et al. (2016) for the species of the "torquatus" group (Widow titis); "Callicebus" Thomas, 1903, for species of the Atlantic Forest "personatus" group; and "Plecturocebus" Byrne et al. (2016) for the Amazonian and Chaco titis of the "moloch" and "donacophilus" groups. Titi The titis, or titi monkeys, are the New World monkeys of the subfamily Callicebinae, which contains three extant genera, "Cheracebus", "Callicebus", and "Plecturocebus." This subfamily also contains the extinct genera "Xenothrix, Antillothrix",
Ornate titi ornate titi spends a significant portion of the day sleeping. They usually spend around 60% of their time sleeping, which hugely differs from the white-tailed titi ("P. discolor"), which spends less than 25%. The ornate titi is diurnal, rising early in the morning and remaining awake and active until sunrise, however this depends on the season, due to the change in availability in food, particularly fruit, which tends to only appear in abundance in the warmer months. In contrast, an ornate titi may stay in sleeping site for up to four hours after sunrise in colder months. Usually, a titi's