OF NORTH AMERICA. 65 



bluish gray speckled with black below; a deep, orange medio-dorsal 

 line (usually obsolete towards each end), and a more distinct, wavy, 

 broken, yellow stigmatal line, with a less distinct coincident pale line 

 below it. Covered with large, highly polished, roughened, deep steel- 

 blue warts, the irregularities of which as they catch and reflect the light, 

 look like pale blue diamonds. Closely examined these warts are found 

 to be covered with small elevations, each of which furnishes a short stifl' 

 yellow hair, these hairs radiating in all directions around the warts 

 which are placed as follows : joint i, with an anterior transverse row of 

 eight, and a posterior dorsal row of four ; joints 2 and 3 each with a 

 transverse row of eight across the middle; joints 4-1 1 inclusive, each 

 with four circular ones anteriorly, and two irregular ones posteriorly 

 on dorsum (each of the last evidently formed by the blending of two), 

 and two on each side near the middle of the joint ; joint 1 2 w^ith two 

 that are irregular on the back, and one that is circular on each side. 

 Anal shield formed of one large irregular wart. In addition to these 

 there is a narrow subventral wart on each side, and two large ventral 

 ones on each of the legless joints. Head polished black with a few 

 black hairs. Thoracic legs polished black, but pale at the joints inside; 

 prolegs black outside, flesh colored within and at extremities. Stig- 

 mata not perceptible. Largest in the middle of the body. Average 

 length 0.90, greatest diameter o. 15 inch." 



" Described from six peach-feeding specimens. Alcoholic specimens 

 do not reflect the pale blue points." 



From the above descriptions it will be seen that the larva of C. Leconki 

 diff'ers principally from that of C. /ulvnosia, in lacking the blue reflec- 

 tions and in having a pale dotted subdorsal line. 



Pttpa. — The larva of C. fuhicosta is said by Riley to spin a slight 

 cocoon of white silk, changing to a pupa of a purple brown color, 

 finely and thinly punctured and terminating in a horizontally flattened 

 plate, which is furnished with numerous yellowish brown curled bristles. 

 The moth issues from this chrysalis during the fore part of June. 



Though C. fulvicosta has been found feeding on the peach tree, it 

 does not occur in sufficient abundance to be a serious pest to the orchard. 



