18 Journal New York Entomological Society. [Voi. ix. 



cream white band. On first and eleventh segment the spiracles only 

 touching its upper margin and on eighth and ninth they are situated 

 only partly within the band. Often a narrow brown or purplish line 

 borders the white band above ; sometimes this line is interrupted or 

 only indicated by a dash on first segment; in most cases it encloses a 

 narrow rose colored, irrorated band with darker red edges ; this red 

 band may be interrupted and often is scarcely indicated or wanting 

 entirely. 



The green color above and below is mottled with innumerable more 

 or less distinct, yellowish white dots and streaks, most plentiful be- 

 tween dorsal and lateral lines where they become confluent, forming 

 mecandric and tortuous designs. On top of hump on nth segment 

 an oval, yellowish white spot, often pinkish inside, sometimes a still 

 smaller one below on the slant. 



Setae very small and weak arising from white disk-like tubercles, a 

 still more anterior white disk than ; does not bear bristle. Ventrally 

 and subventrally the green color is more intense than above. Fore- 

 legs greenish but pale ; abdominal legs green with minute whitish dots, 

 feet tipped with rose color or pink. 



The dark varieties occur in all shades from olive brown and pur- 

 plish to paler or darker chocolate brown. Markings the same as in 

 the normal green form. The stigmatal band mostly plain, but speci- 

 mens banded or variegated with rose color are not scarce. The white 

 lines are shaded more or less above and below with a darker tint of 

 ground color. 



The head of the dark varieties has the same color but paler than 

 the body, the black bands are the same, the space below the black 

 band and white buccal region is often marked by dark brown dashes 

 or reticulations. June 14th sixty larvae, all green with striped heads 

 and as far as possible before 5 th moult were separately reared in a 

 roomy glass jar, containing an abundance of the dry last year's stems 

 and branchlets of the food plant and dried-up, brownish leaves, only 

 few fresh plants being added, for food, so that the caterpillars had 

 almost no other resting place but the dry plant ; the jar was kept in 

 a light though shady place. June 25th they were examined. Five 

 had formed their cells and hence the color could not be ascertained, 

 thirty-nine were of the brown variety in different shades and six- 

 teen only were of the normal green form. 



Before pupating the larva turns purplish and, usually at night, forms 



