Hylidse 



broad-leaved aquatic plants. They are abundant in southern 

 gardens also.^ They are commonly seen resting on wellhouse or 

 fence, or on the leaves of the okra or other plants of the garden. 

 In southern Illinois, Hyla cinerea is said to be found likewise 

 on lily-pads and other aquatic vegetation at the edges of lakes, as 

 well as in gardens and corn-fields.'' The chorus as heard in Illinois 

 is described as follows: " Its note resembles the tone of a cow-bell 

 heard at a distance. Where abundant about water, the frogs are 

 very noisy just before dusk, the chorus being broken, however, 

 by longer or shorter intervals of silence. A single note is first 

 heard, and, as if that were a signal, it is taken up and repeated 

 by a dozen noisy throats till the air is resonant with sound. After 

 a time it ceases as suddenly as it began, to be again resumed after 

 a period of quiet." 



HYLA EVITTATA, MILLER 



Identification Characteristics 



Colour: Olive-brown, or green of yellow or blue tone. There 

 is no conspicuous pattern of stripes or spots; there may be few 

 or many inconspicuous, orange-yellow flecks of colour on the back. 

 The vivid colour of the back extends on the sides of the throat 

 under the jaw. The dark colour of the upper parts meets the 

 white of the underparts abruptly instead of blending into it. 

 Ear may be brown, with green centre. The large eyes show 

 golden or bronze reticulations. The nostrils, which are not 

 pigmented, appear red. Underparts white, sometimes yellowish 

 on breast, throat, and sides. 



Measurements: Length li^ to 2 inches. Head ^ inch (in frog 

 if inches) long. Length of leg to heel equals or exceeds length 

 of frog forward to the eye. Tibia but slightly longer than femur. 



Structure: Skin unusually smooth. Underparts granulated, 

 except throat region. Outline of head rounded, less pointed than 

 in Hyla cinerea Daudin. Muzzle projecting slightly beyond 

 jaw. Head relatively thick through, compared with Hyla cinerea. 

 Distance between the eyes greater than width of eyelid. Nostrils 

 nearer to the end of the muzzle than to the eyes; they are farther 

 from each other and somewhat nearer the eyes than in Hyla 



1 Bay St. Louis, Miss. C. S. Brimley. 

 ^H. Garman Bulletin Illinois State Lab. Nat. Hist., 1892. 



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