Evidence for insectivory in two primate species ( Callicebus torquatus lugens and Lagothrix lagothricha lagothricha ) from northwestern Amazonia

Insects were recovered and identified from stomach contents of two Callicebus torquatus lugens and one Lagothrix lagothricha lagothricha collected in a remote area of northwestern Amazonia. Both C. torquatus lugens showed little insect matter in stomach contents. Conversely, a minimum of 133 individual insects were recovered from stomach contents of the L. lagothricha lagothricha . These included various larger, rapid forms (Cicadellidae) unlikely to have been inadvertently consumed while the animal was eating fruit.