1658 THE BUTTERFLIES OF NEW ENGLAND. 



just beneath thoni. Clasps broad and as lonp; as the upper orsan, equal, terminating 

 at tip in a manner somewhat similar to the last genus. 



Egg. Hemispherical, more than half as broad again as high, largest about one-sixth 

 of the distance above the base, above that regularlj- domed with no tlattening of the 

 curve at the summit; minutely, profusely and uniformly punctate, the punctae 

 being omitted only at the micropyle; covered with a polygonal network of raised 

 lines. 



Caterpillar at birth. Head large, shaped much as at maturity ; with ^ery distant, 

 short bristles; surface smooth with very distant, faint punctures; ocelli six in num- 

 ber, the tirst five in a regular, arcuate, anterior series, the upper three equidistant, 

 approximate, the lower three equidistant, distant; the sixth behind this series, forming 

 a little more than a right angle with the first and fifth. Body very slender, equal; dor- 

 sal thoracic shield distinct, bearing anteriorly a transverse series of distant, apically 

 enlai'ged. long, rather stout bristles, as long as the segment; abdominal segments of 

 the body divided into live sections, the largest occupying the anterior half of the seg- 

 ment and marked posteriorly with a suboljsolete crease, the posterior four subequal ; 

 bristles of the body ^\ine-glass shaped, the apex being as broad as the basal papilla; 

 they are scarcely more than half as long as the broadest section of the segment and 

 are arranged as follows : a laterodorsal series in the middle of the broad anterior 

 section; an infralateral series on the second of the short sections; a suprastig- 

 matal series in the middle of the posterior half of the broad anterior section ; and an 

 infrastigmatal series, a pair to each segment, one a little in front, the other a little 

 behind the middle, directed respectively anteriorly and posteriorly ; on the last seg- 

 ment are two pairs of laterodorsal bristles as long as two or three segments of the 

 body, erect but strongly recurved. 



Mature caterpillar. Head stout, the lower half quadrangular, the upper broad, 

 low, conical, deeply and rounded cleft at the median suture; of nearly equal depth 

 throughout, excepting the narrowing, rounded summit above the neck; triangle 

 obscure with a double median furrow ; ocelli six in number, five in a strongly arcuate 

 row, facing downward and forward at subequidistant intervals, the uppermost obso- 

 lete, the third and fourth largest, the fifth directl.v opposite the base of the antennae, 

 the sixth above it and forming a right angle with it and the second. 



Body long and slender, tapering more r.ipidly forward than behind, largest from the 

 fourth to sixth abdominal segments ; dorsal thoracic shield of equal width, extending 

 almost to the spiracle, rounded at the extremity, a triangular part of which is nearly 

 severed from the main body ; deeply sulcate transversely, followed anteriorly by a 

 naked space of equal width, in front of which the segment is abruptly narrowed to the 

 ■width of the collar of the head ; inferior gland of the first thoracic segment large, 

 about as large as the basal joint of the thoracic legs, globose, transversely slit; seg- 

 ments of the body divided into seven sections, of which the first is the broadest and 

 broader than any two of the others together, the remaining snbecjual, the spiracle sit- 

 uated on the second ; covered profusely and pretty uniformly with minute papillae, 

 having no serial disposition, bearing minute, excessively short hairs; the following 

 series of crateriform disks : a lateral series on the fourth transverse fold, transverse, 

 oval, minute; on the second and third thoracic segments these are situated a little 

 lower, are double, one directly above the other and larger; on the second thoracic 

 segment situated directly above the small thoracic callosity ; a suprastigmatal series 

 lying directly in the obsolete crease separating the first and second sections of the 

 segments, broad, oval, transverse, slightly larger than the preceding, its length not 

 equalling the width of the spiracles ; an infrastigmatal series as far behind the spira- 

 cle as the suprastigmatal is in advance of it; and a lateroventral series of larger, 

 circular ones on the first and second abominal segments. 



Chrysalis. Long, snbcylindrical. the anterior extremity bro.id, a little depressed : 

 head and ])rothorax together forming a broad mass nearly twice as broad as long wth 

 rounded sides, the middle half of the front forming an independent rounded projec- 

 tion ; mesothorax a little broader than the prothorax, gently rounded above, scarcely 



