More insectivorous than frugivorous

Saimiri

S. boliviensis

S. oerstedii

S. sciureus

S. ustus^c

S. vanzolinii^c

Bolivian squirrel monkey

Red-backed squirrel monkey

Common squirrel monkey

Golden-backed squirrel monkey

Black squirrel monkey

Animal prey, particularly insects 60% (47-100%), vertebrates 1%, fruit 25% (15-39%), flowers 5% (2-13%), leaves 13% (11-18%), seeds/ nuts, successful in 61% of insect foraging; during dry season, rely on figs

S. boliviensis, S. oerstedii: diurnal, arboreal, multimale/ multifemale, groups, up to 23 individuals; S. sciureus, S. vanzolinii: groups, 22-50 individuals

0.54-1.25 kg females, 0.48-1.2 kg males

Costello et al., 1993; Ford & Davis, 1992; Janson & Boinski, 1992; Mittermeier & vanRoosmalen, 1981; Rosenberger, 1992; Silva & Downing, 1995; Souza et al., 1997; Terborgh, 1983

Primarily frugivorous

Ateles

A. belzebuth

A. chamek

A. fusciceps^c

A. geoffroyi

A. marginatus^c

A paniscus

White-bellied spider monkey

Black-faced black spider monkey

Brown-headed spider monkey

Black-handed spider monkey

White-whiskered spider monkey

Black spider monkey

Total fruit 78% (18-100%), including unripe fruit 6%; seed 5% (0-19%); total leaves 16% (0-38%), including mature leaves 3%; flowers 3% (1-10%); epiphytes 2%; dead wood, buds, insects 1%

Diurnal, arboreal (salt licks on ground), fission-fusion, groups 3-35 individuals

5.0-11.0 kg females, 5.8-9.8 kg males

Chapman, 1987, 1988; Ford & Davis, 1992; Hladik, 1975; Klein & Klein, 1975, 1977; MendesPontes, 1997; Milton, 1981; Mittermeier & vanRoosmalen, 1981; Nunes, 1998; Robbins et al., 1991; Silva & Downing, 1995; Simmen & Sabatier, 1996; Symington, 1988; VanRoosmalen, 1985; VanRoosmalen & Klein, 1988; White, 1986

Primarily frugivorous, seasonally seeds or leaves important

Aotus

A. nigriceps

Southern red-necked night monkey

A. trivirgatus

Northern gray-necked owl monkey

Fruit (soft) 44% (16-75%), leaves 32% (5-46%), insects 13% ( 5-15%), other (especially flowers) 11%; Aotus diet similar to Callicebus but ate less vegetation, more insects in abundant season

Nocturnal, arboreal, monogamous family groups, 2-5 individuals; feed in groups 25-55 at low elevations

0.78-1.1 kg females, 0.825-1.05 kg males

Durham, 1975; Engqvist & Richard, 1991; Kinzey, 1992; Wright, 1981,1989, 1994

Callicebus

C. brunneus

C. caligatus^c

C. cinerascens^c

C. cupreus^c

C. donacophilus^c

C. dubius^c

C. hoffmannsi^c

C. modestus^c

C. moloch

C. oenanthe^c

C. olallae^c

C. personatus

C. torguatus

Brown titi monkey

Chestnut-bellied titi monkey

Ashy gray titi monkey

Red titi monkey

Bolivian gray titi monkey

Hershkovitz’s titi monkey

Hoffmann’s titi monkey

Bolivian titi monkey

Dusky titi monkey

Andean titi monkey

Beni titi monkey

Masked titi monkey

Collared titi or widow monkey

Fruit 61% (30-87%) (of which seeds may be as much as 28%), leaves (mostly young) 21% (2-66%), insects 12% (0-28%), flowers 2% (0-18%); when food scarce, ate 25% bamboo and vine leaves

Diurnal, arboreal, monogamous family 2-6 individuals

0.7-1.5 kg

Crandlemire-Sacco, 1988; Easley, 1984; Ford & Davis, 1992; Heiduck, 1997; Kinzey, 1977, 1981, 1992; Kinzey & Gentry, 1979; Muller, 1996; Palacios, 1997; Robinson et al., 1987; Silva & Downing, 1995; Terborgh, 1983, Wright, 1994

Cebus

C. albifrons

C. apella

C. capucinus

C. olivaceus

White-fronted capuchin

Tufted or brown capuchin

White-throated capuchin

Weeper or wedge-capped capuchin

Fruit 55% (10-95%), of which seeds are 8% (0-39%); leaves (mostly young) 8% (0-39%); insects 33% (2-100%); flowers 2% (0-14%); C. apella in Argentina ate bromeliad leaves 72%, fruit 3%, insects 25%

Diurnal, arboreal mostly, multimale/ multifemale groups of 2-40 individuals; C. apella, C. olivaceus: with alpha male

1.4-3.8 kg females, 1.3-4.8 kg males

Brown & Zunino, 1990; Chapman, 1987; Chapman & Fedigan, 1990; Ford & Davis, 1992; Hladik et al., 1971; Janson, 1985; Janson & Boinski, 1992; Mittermeier & vanRoosmalen, 1981; Peres, 1994a; Robinson, 1984; Simmen & Sabatier, 1996; Teaford & Robinson, 1989; Terborgh, 1983