MEMOIRS OF THE ^■ATIO^■AL ACADEMY OF SCIENCES. 147 



"'Yijung liii'iyi. — Length, 11 inui. Head large, pale l)rick-red. Body pale green, tubei-cl(>s 

 straw-yellow, green at base. The dorsal tubercles all nearly the same size, except the prothoi-acic 

 ones, which are nearly one-half as large as the mesothoracic; those on mesothoracic. nieta- 

 thoracic, and first abdominal segments of equal size and only a little larger than those on the 

 other abdominal segments. Eightii pair of abdominal ones larger than the others and nearly as 

 large as the thoracic ones. The long, slender spines on the thoracic segments black, those on 

 the abdominal in part black, especially the inner ones. 



" Larva, pt'ohailij hefore the last molt. — Head full, rounded, retractile in the prothorax 

 nearly concolorous with the body, being corneous. Body uniformi}- horn-brown, the color of 

 old dark parchment, with no green shade about it. On each thoracic segment a lone-, slender 

 warted subdorsal spine, the prothoracic pair projecting a little in front and smaller and one-third 

 shorter than the other four, which are recurved. The six long thoracic; spines are succeeded by 

 a dorsal row of short stout smooth acute spines with a dull orange-red tint. Each spine has two 

 or three small slender dark spinules and about three terminal unequal spinules. On the side of 

 each thoracic segment are two short conical tubercles with a few stitf spinules. On the abdomen 

 above the spiracles is a row of dull orange-reddish smooth spines, and below a row of much 

 slenderer spines, which are spinulated much like the dorsal thoracic ones. The.se spines are 

 .situated on the folds of the lateral ridge of the body. Below this subspiracular row of spines is 

 a subventral row of small spines on the three thoracic segments, and -which are large and lono- on 

 the first and second abdominal segments and on the last three segments. On the middle of the 

 eighth segment is a large straight dorsal stitf spine nearly as large as the larger thoracic ones. 

 At its base behind are two minute spines. On the segment behind (ninth) is a median stout 

 spine, making the middle one of a transverse row of seven spines on that segment. Supraanal 

 plate fiat, obtuse, variously and obtusely tuberculated, especially around the edges, as are the 

 sides of the large anal legs and the sides of the prologs, which are very retractile. The spiracles 

 are large, black, and very conspicuous, the last pair larger than the others. There are also 

 scattered smoky-black blotches, a row on the front edge of each segment and one at the base of 

 the dorsal spines. Length, 50 mm. (2 inches). The larva of .•<rj>iilrr<i!ix (of which Professor 

 Riley has blown larvie of four stages) difl'ers from that of C. regal is in the stage l)efore the last 

 molt in having only six spines on the anterior end and two pairs of straight spines on the end 

 those on the prothoracic segment longer in proportion than in C. rcf/a/t-s, and all endinf in 

 bulbous enlargements. In the mature larva all the spines are shorter and the spiiuiles have 

 shorter spines. Length lOO mm. (i inches)." (Rep. Forest Insects, p. 772.) 



The tubercles i/' are present in the fully giown larva on alxlominal segment S. and each 

 beai's two short fine seta}. 



Geographical dlstrlhution. — From southern Maine and New Hampshire to Georo-ia and 

 Florida. Brunswick, Me. (Packard); Manchester, N. H. (F. H. Foster); Lawrence, Mass. (J. O. 

 Treat); Lonsdale, R. I., June 20 (Dearden); Providence, end of June (G. Gray); New York City 

 (Edwards. Grote); Pennsylvania; Georgia (Abbot); Jacksonville, Fla. (Mrs. Slo.sson). (See 

 Map IX.) 



