Triangle tree frog
This frog is brown in color with yellow or white stripes.  At least a few frogs have a spot on their necks in the shape of a triangle.  The adult male frog is 28.6 to 34.4 mm long from nose to rear end and the adult female frog is 37.5 to 41.9 mm long.  The female frog lays eggs on leaves so that the tadpoles fall into the water.