Peeper. Spring-peeper. 



Pickering's Tree 



Frog. Pickering's Tree 

 Toad. Pickering's Hy- 

 lodes. Pickering's Hyla. 

 Peeping Frog. Piping 

 Frog. Castanet Tree 

 Frog. Piping Tree 

 Frog. Pickering's Frog. 



Plate XLII. i, 2, 3. 



Males (Xi). 4. Eggs (xi|). 

 5. Female (Xif). 



Hyla crucifer Wied. 



Range: New Brunswick to 

 Manitoba, south to Florida, 

 Alabama, Mississippi, Loui- 

 siana, Arkansas and Kansas. 



Habitat: They live in open 

 lowland marshes, swamps at 

 sources of streams whether 

 wooded or open, sphagneous 

 or cat-tail, in fact any pool, 

 ditch, or shallow pond tran- 

 sient or permanent, grassy or 

 muddy. 



Size: Adults, 3/4-1 1/4 

 inches. (Males, 18-29 mm. 

 Females, 20-33 mm.). 



General appearance: This is 

 a small frog with an oblique 

 cross on the back. A male 

 when first captured in early 

 spring may be liver brown, 

 chestnut brown, bay, claret 

 brown or mars brown. The 

 females are usually lighter in 

 color. Both have obscure 

 bands across the fore and 

 hind limbs. The male has 

 primrose yellow on the groin, 

 throat olive ocher or aniline 

 yellow in rear and citrine 

 near the rim of the lower jaw. 



n6 



