June, 1901.] BeUTENMULLER : EARLIER STAGES OF SpHINX GORDIUS. 87 



THE EARLIER STAGES OF SPHINX GORDIUS. 



By William Beutenmuller. 



^^1,^^. — Globular, smooth, shining, pale green. Width, i mm. 

 Height, .75 mm. The egg is similar to that of Sphinx liicitiosa, but is 

 smaller and more globular. Emerged July 6th. 



Stage I. — Pale whitish green, caudal horn jet black, with two hair- 

 like bristles at the tip. Length, 3.5 mm. As the larva becomes 

 older there appears at the sides five white oblique bands and a sub- 

 dorsal stripe of the same color. Length, 7 mm. Getting ready to 

 moult July loth and nth. Moulted July nth and 12th. 



■5"/^^^^ //. — Pale green with pale yellow granulations, and pale 

 yellowish oblique bands at the sides and a subdorsal stripe, broken by 

 the bands. Caudal horn reddish brown, cherry red at base. Feet, 

 legs and head, pale green. Getting ready to moult July 14th and 

 15th. Moulted July 15th and i6th. Length, 12 mm. 



Stage III. — Pale green, thickly beset with yellowish granulations, 

 and a short subdorsal stripe on each side composed of yellow granula- 

 tions. The oblique bands yellow behind, red in front and slightly 

 white in the middle. Head green with a yellow stripe on each side in 

 front. Caudal horn red with short spines. Thoracic feet red. Ab- 

 dominal and anal legs green, (jetting ready to moult July i8th and 

 19th. Moulted July 19th and 20th. Length, 18 mm. 



Stage IV. — Head light green with a broad yellow stripe on each side 

 in front. Body bright whitish green with the oblique bands broad, 

 bright crimson in front, yellowish behind . and white in the middle. 

 Caudal horn crimson. Thoracic feet crimson. Sometimes the caudal 

 horn is crimson above, orange beneath or blackish above, yellow beneath 

 and red at the sides. Moulted July 23d and 24th. Length, 24 mm. 



Stage V. — Same as in the previous stage. Moulted July 29th and 

 30th. Length 35 mm. 



Stage VI. — Body bright apple green with numerous small yellow- 

 ish or whitish dots, some of which are encircled with black. Along 

 each side are seven oblique, bright carmine stripes, which are white 

 posteriorly, the carmine shading into the white. Caudal horn black 

 at the sides and tip, green at the middle above and beneath. Spiracles 

 orange. Head with a yellowish and brownish stripe on each side in 

 front. Thoracic feet pink, greenish at the base. Abdominal and 

 anal legs green. Length, 65 mm. 



Food-plants : Apple, huckleberry, Myrica. 



