1 04 Bulletin of the Brooklyn Entomological Society Vol. XII 



entirely absent. Distance from the thoracic legs to the third and 

 fourth pairs of prolegs long. 



June 14. Another moult must have been passed, although 

 there were no head cases nor old skins to be found. Length 12 

 mm. Head pinkish cream color, heavily gridironed with a net- 

 work of dark brown lines. Rudiments of the two anterior pairs 

 of prolegs appeared. Thoracic segments pinkish brown, rest of 

 the body dull green, shading again to pinkish brown posteriorly. 

 Longitudinal lines and piliferous warts about the same as before. 



June 18. No evidence of a moult except that the larvse had 

 changed conspicuously in size and structure. Length 25 mm., but 

 still very slender and in general appearance much like a Catocala 

 larva. Two anterior pairs of prolegs about half developed; all 

 four pairs light flesh color dotted with black. A distinct dorsal 

 hump on the nth segment and also an enlargement on the 4th 

 segment. Prevailing color dark green, skin somewhat wrinkled, 

 dark olive below, longitudinal light stripes persist, purplish tinge 

 anteriorly. Spiracles inconspicuous, black edged with white. 



June 20. At last a moult was distinctly in evidence with the 

 larvse varying greatly in size ; largest length 35 mm. Head with 

 color and pattern the same. First segment conspicuously swollen 

 and globular in shape. Two anterior pairs of prolegs nearly de- 

 veloped and in use when in rest, but the larvse still employ the 

 looping method of locomotion. Dark wart-like excrescences on 

 the 4th segment and the conical hump on the nth quite con- 

 spicuous. Prevailing color purple brown washed liberally on the 

 back with splashes of light straw color. Stripes persist and the 

 whole body is finely mottled with white. Below greenish white 

 with a dark brown spot on each segment. Base of black 

 piliferous warts is white. Under a 25 mm. glass the larva with 

 its wrinkled skin looks quite like a small snake. Stigmata still 

 inconspicuous. 



June 25. Another moult in process, after which length 60 

 mm. ; body slender and tapering toward each extremity. Great- 

 est diameter 5 mm. Color and marking of the rather small head 

 the same as before. Swelling of the ist segment subsided. All 

 three pairs of posterior prolegs developed, the anterior pair only 

 abortive. Excrescence on the 4th segment now represented by a 



