sloths (Folivora), together forming Pilosa. Until a detailed taxonomic review in 2017, seven subspecies of C. didactylus were recognized. C. d. didactylus Linnaeus, 1758 - the Guyanas, eastern Venezuela, Trinidad, Atlantic Forest C. d. catellus Thomas, 1928 - northern Bolivia, southeastern Peru, western Brazil C. d. dorsalis Gray, 1865 - extreme southern Mexico, Central America, northern Colombia C. d. eva Thomas, 1902 - western Ecuador, southwestern Colombia C. d. ida, Thomas, 1900 - western Brazil, eastern Ecuador and Peru C. d. melini Lönnberg, 1928 - northern Brazil, eastern Colombia C. d. mexicanus Hollister, 1914 - southern Mexico The 2017 review suggests that four of these subspecies deserve to be recognized as species, while the others are synonyms. It also described three new species of silky anteater. C. didactylus (Linnaeus, 1758) (synonym: C. d. melini) - the Guyanas, eastern Venezuela, Trinidad, Atlantic Forest and northern Brazil C. catellus Thomas, 1928 - Bolivia C. dorsalis (Gray, 1865) (synonyms: C. d. eva and C. d. mexicanus) - western Ecuador, southwestern to northern Colombia, Central America, southern Mexico C. ida Thomas, 1900 - western Brazil, eastern Ecuador, eastern Colombia and Peru C. thomasi Miranda et al., 2017 - Central Peru, extreme western Brazil (Acre) C. rufus Miranda et al., 2017 - Brazil (Rondônia) C. xinguensis Miranda et al., 2017 - Brazil, between the Madeira River and the Xingu River (Below the Amazon river) Behavior Silky anteaters are nocturnal and arboreal, found in lowland rainforests with continuous canopy, where they can move to different places without the need to descend from trees. They can occur at fairly high densities of 0.77 individuals/ha, for example, in some areas. Females have smaller home ranges than males. The silky anteater is a slow-moving animal and feeds mainly on ants, eating between 700 and 5,000 a day. Silky anteaters also feed on wasps and wasp pupae, attacking the wasp nests at night when the wasps are sluggish and unable to defend themselves. Sometimes, it also feeds on other insects, such as termites and small coccinellid beetles. It has been observed to consume fruits while in captivity. The silky anteater defecates once a day. Some of those faeces contain a large quantity of exoskeleton fragments of insects, indicating the silky anteater does not possess either chitinase or chitobiase, digestive enzymes found in insectivorous bats. It is a solitary animal and gives birth to a single young, up to twice a