Titi 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", "Paralouatta, Carlocebus, Lagonimico", and possibly also "Tremacebus". Titis live in South America, from Colombia to Brazil, Bolivia, Peru and northern Paraguay. Depending on species, titis have a head and body length of , and a tail, which is longer than the head and body, of . The different titi species vary substantially in coloring, but resemble each other in most other physical ways. They have long, soft
Ornate titi daily activity lasts for around 11.5 hours, with feeding taking up around 2.7 hours. Their day is typically split into two feeding sessions, one in the morning and one in the evening, with a resting session at around midday. The last few hours of the day are generally spent feeding on leaves. The predominant and most important predators of all titis are raptors. Several species of raptor have been observed attacking a titi, including the Guianan crested eagle ("Morphnus guianensis") and the Ornate hawk-eagle ("Spizaetus ornatus"). Tufted capuchins ("Cebus apella") have also been observed killing and consuming an ornate titi.