Broad-headed Skink

 

 
6.5"-13" long, a large brown lizard with a wide head and five broad light stripes, though stripes fade with age.  Adult males often have bright red-orange heads.  Tale is blue to brown.  Broad-headed skinks are found primarily in the southeastern U.S. and parts of the lower modwest.  Lives in moist wooded areas with lots of cover, but often arboreal and feeding on insects high in trees.  Very nasty biters.