7(2 FIFTH REPORT OF THE ENTOMOLOGICAL COMMISSION. 
toward tin* outer ed^eof each wing; in the mules there is another purple-brown spot 
covering Dearly t h*» whole of the outer hiud margin of the fore wings, ami united to 
the band near that part; the body is yellow, washed with purple-brown along the 
back. It expands from 4$ to over 5 inches. (Harris.) 
92. Citheronia sepulchralis Grote and Robinson. 
Closely allied to C. regalia is the above named species whose cater- 
pillar feeds on the pitch-pine. It is closely allied to the larva of C. 
regality but the horus 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 larva.— Length, ll ram . 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 uuiformly 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 prothoracic 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 segments, 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 prolegs, 
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 m,n (2 inches). The larva of sepulcralis (of which Professor Riley has 
blown larvre 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 ou the prothoracic segment longer in proportion than in C. regalis, 
and all ending in bulbous enlargements. In the mature larva all the spines are 
shorter, and the spinules have shorter spines. Length, 100 mm (4 inches). 
