Hyla squirella 317 



In 1922 on June 19 at Camp Pinckney a severe storm came from i :oo to 

 3:00 p. m. Hyla squirella were calling vigorously. 



On June 23, two inches of rain fell at St. George and scrapers were calling. 

 On June 26 a half inch to an inch of rain fell, and the Hyla squirella were 

 calling strongly at Anna's Pond on that day and on June 29 at Camp Pinckney. 

 On the afternoon of July 2 and through some of July 3 considerable rain fell 

 and the species were common in roadside ditches west of Trader's Hill, in 

 Anna's Pond, Starling Branch, Cornhouse Creek and several other places. 

 Another great chorus came August 16 and 17 after a half day's rain when 

 about two inches of rain fell, maxima 82-91°, minima 65-74°. Spadefoots 

 and Rana aesopus, subterranean species came out to breed and Hyla squirella 

 as well. 



In general this species calls even by day in rain or before an imminent 

 rain (July 9). After a downpour of warm rain 1-5 inches they became very 

 active. As every observer has remarked heavy warm rains bring them out in 

 midsummer. During our 1922 study June lo-August 20, maxima were 81- 

 90°, minima 62-74°, averages 90°, maxima minima 70°. 



MATING 



Alale {Fi'om life, June 22, 1922). Back citrine or buffy citrine in one; on 

 another ecru-olive or light yellowish olive; rear back and top of hind legs 

 chrysolite green to lime green. Under parts of hand also hind foot orange 

 rugous, xanthine orange to orange chrome; hind Hmb posterior and anterior 

 faces and throat raw sienna or mars yellow; throat of another aniline yellow 

 or other hind leg parts raw sienna. Stripe on upper jaw on to body greenish 

 or lemon yellow. Belly cream color or ivory yellow. Tympanum hazel or 

 russet. Iris spotted black and army brown, a fawn in one deep chrome and 

 antique brown in another. A light area of greenish on either side of throat 

 but not clearly defined or definite as in Hyla andersonii and Hyla cinerea males. 



One male held in hand in good light became courge green and another oil 

 green. A small last year's H. squirella was light dull-green-yellow above and 

 upper jaw stripe light chalcedony yellow. Sometimes those in water may be 

 greenish while those on edges or on land may be brownish. 



Female {From life, July 3, 1922). Four females of four different pairs had 

 under parts white with no discolored throats. Throat slightly primrose 

 yellow, reed yellow or white. Forelimbs, groin, hindlimbs before and aft, 

 tibia and hind feet reed yellow, olive yellow. In one yellow ocher on fore and 

 rear part of femur, under side of tibia and foot and fore foot. The females 

 unless very large have none of the bright orange rufous, xanthine orange or 

 orange chrome of the males. 



Structural differences. In the four mated pairs the pairs were in size as 

 follows: cT 31 mm., 9 30 mm; cf 29.5 mm., 9 28.5 mm.; cf 27 mm., 9 27 

 mm.; cf 28.5 mm., 9 35 mm. In other words in two cases the males were 

 larger, in one case male and female equal and one where female was much 

 larger. We have females 27 and 35 mm., and twelve males from one place 

 ranged from 27.5-35 mm., average 32.4 mm., mode 32 mm. 



