Vol. XXX ] ENTOMOLOGICAL NEWS 15 



bears three rows of brownish tubercles, each set with a single spine ; 

 the saddle is faintly marked, with no elevation. Ventral as in stage I. 



Stage 3. Head bilobed, ashen color ; a black band below crest. Crest 

 reddish, a black longitudinal dash in inverted "V" space. Body color 

 faintly pinkish, thickly dotted with black, so that the general aspect is 

 brownish gray. There is a faint middorsal line; the three rows of 

 tubercles are tipped with orange, as is also the blunt elevation on saddle 

 above third pair of prolegs. Spiracles black surrounded by the body 

 color. Setae pinkish, short and are not present between segments 

 nine and ten. Ventral light pinkish, with blotches of light blue. 



Stage 4. Head is body size ; color and markings as in stage 3. Hump 

 above third pair of prolegs is more prominent; setae pinkish, short 

 and stout. 



Stage 5. Head strongly bilobed ; posterior part brown, darkest at 

 cleft; sides marbled with liver color; two black transverse bands in 

 inverted "V" space. Crest orange, from which protrudes a tubercle of 

 light orange set with a black spine. Body color greenish ashen sprin- 

 kled with many minute black dots; no distinct lines; all tubercles tipped 

 with orange. Hump on saddle is prominent, brown tipped with reddish, 

 and of a very fine texture; a second hump about half the size of the 

 first and inclined toward it is on the same segment: dark brown, 

 setae pinkish, stout. Ventral pinkish, with blotches of dark blue. 



Pupa has no distinctive features from the Catncala type. 



The larvae of C. titania can be collected until May 19, by 

 bush beating night or day, as they do not leave the top of the 

 tree for resting. When grown, the larva is easily recognized 

 by the double horn above the third pair of prolegs ; the 

 posterior one is much the smaller, about half the size of the 

 anterior. 



The behavior of the larva of C. titania varies but little 

 from that of other species of the genus. During the first stage 

 they do not leave the margin of the leaf upon which they feed ; 

 in the second stage they rest on the lower surface of the midrib 

 of the leaf; in the third stage they rest on a twig just a 

 little larger in diameter than the body, and continue so during 

 the remaining stages. They seem to be comfortable only 

 when resting on a branch a little thicker than themseK o. in 

 either an upright or a horizontal position. Pupation occurs 

 in most instances amid the thick foliage of a tree. 



In every stage the caterpillar mimics the color of its rot- 



