Survey of 30 stoniach and/or gut contents of the five species of Siphlophis Fitzinger, 1843 revealed predominance of mostly diurnal species of lizards. Remains of nocturnal prey and snakes were also found. For the first time, one frog and one bat are recorded as preys of one species (S. cervimis Laurenti, 1768). Predation on mollusks and birds is not confirmed herein.
Serpentes; Colubridae; Xenodontinae; Pseudoboini; Siphlophis; diet