DIET OF THE TEXAS YELLOW-FACED RACERUNNER, CNEMIDOPHORUS-SEXLINEATUS-STEPHENSI (SAURIA, TEIIDAE), IN SOUTHERN TEXAS

The diet of Cnemidophorus sexlineatus stephensi was determined from an alysis of stomach contents of four samples of lizards collected from C ameron, Kenedy and Brooks counties. Orthopterans and spiders were the most important components of the diet of C. sexlineatus stephensi, tho ugh several other kinds of insects were also eaten. Termites were seld om found in lizard stomachs, but when they were, they were often prese nt in large numbers. There was a significant positive correlation betw een lizard size and total volume of prey consumed, but not between liz ard size and number of prey consumed. Overall, the diet of C. sexlinea tus stephensi in south Texas resembles the diets of C. sexlineatus pop ulations in the central U.S. more closely than the diet of the closely related unisexual species of the Cnemidophorus laredoensis complex in the Rio Grande Valley.