Aristelliger species are nocturnal and mostly arboreal, occupying palm tree trunks and other vertical surfaces.

They are among the largest neotropical geckos, with A. lar reaching up to 135 mm (5.3 inches) in snout-vent-length (not including the tail).

[2] They are primarily insectivorous, feeding on a variety of arthropods.

A. lar is omnivorous, and may be an important seed disperser for fruits of the plant Marcgravia.

Nota bene: A binomial authority in parentheses indicates that the species was originally described in a genus other than Aristelliger.