Polypedates leucomystax is a small to medium-sized common tree frog, with males averaging 50 mm in total length and females averaging 80 mm in total length (McKay 2006). P. leucomystax ground color is a variable shade of brown, ranging from pale brown to yellow-brown, reddish brown, gray-brown, or dark brown (McKay 2006). Throughout most of its range, patterning is prevalent, and the pattern varies from spotted to longitudinally striped. Plain forms are also seen but not as commonly. (Frith 1977; McKay 2006). However, on Bali, the most common form is plain, without pattern. (McKay 2006). (Kellie Whittaker, Gary Tsai (biologist AT earthlink.net), UC Berkeley: First submitted 2005-10-24: Edited by Kellie Whittaker (2007-09-04): http://amphibiaweb.org/. (Accessed: Jul 21, 2014))