772 FIFTH REPORT OF THE ENTOMOLOGICAL COMMISSION. 



toward the outer edge of each wing ; in the males there is another purple-brown spot 

 covering nearly the whole of the outer hind margin of the fore wings, and united to 

 the band near that part ; the bodj^ is yellow, washed with purple-brown along the 

 back. It expands from 4^ to over 5 inches. (Harris.) 



92. CUheronia sepulcJiralia Grote and Robinson. 



Closely allied to G. regalis is the above named species whose cater- 

 pillar feeds oa the pitch-pine. It is closely allied to the larva of C. 

 regalis^ but the horns on the three thoracic segments are paler, slen- 

 derer, and unicolorous. It ranges from Maine to Georgia. 



I have found a nearly full-grown caterpillar of this rare moth on the 

 pitch-pine at Brunswick, Me., August 5, which lived in confinement 

 until the 17th of the month. The following year a younger one oc- 

 curred on the white pine during the second week in August. 



Young iarva.— Length, 11™™. Head large, pale brick-red. Body pale green, tuber- 

 cles straw-yellow, green at base. The dorsal tubercles all nearly the same size ex- 

 cept the prothoracic ones, which are nearly one-half as large as the mesothoracic ; 

 those on mesothoracic. metathoracic, and first abdominal segments of equal size and 

 only a little larger than those on the other abdominal segments. Eighth pair of ab- 

 dominal 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, probably before the last molt. — Head full, rounded, retractile in the protho- 

 rax, nearly concolorous with the body, being corneous. Body uniformly horn-brown, 

 the color of old dark parchment, with no green shade about it. On each thoracic 

 segment a long slender warted subdorsal spine, the i)rothoracic pair projecting a 

 little in front and smaller and one-third shorter than the other four, which are re- 

 curved. 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 stiff 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. These 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 segmeuts, and which are large and long on the first and second abdom- 

 inal segments and on the last three segments. On the middle of the eighth segment 

 is a large straight dorsal stiff 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 seg- 

 ment. Supra-anal plate flat, 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""" (2 inches). The larva of sepulcralis (of which Professor Riley has 

 blown larvae of four stages) differs from that of C. regalis in the stage before 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, regalia, 

 and all ending in bulbous enlargements. In the mature larva all the spines are 

 shorter, and the spinules have shorter spines. Length, 100™™ (4 inches). 



