Hyla versicolor ( Tetraploid Gray Treefrog) Hyla chrysoscelis ( Diploid Gray Treefrog ) This is the bigger specie of Treefrog in Canada even if they only grow to a lenght of about 3 to 6 cm. In fact, the gray Treefrog are indeed two species of treefrogs that are very similar in inhabit the same Learn more on Gray Treefrog »