920 rilK BUTTERFLIES OF XEW ENGLAND. 



the posterior of six warts ; besides these, tlie segment is furnished with a row of warts 

 emittiiift long hairs, parallel to and outside of the front border and sides of the 

 shield ; the last segment of the abdomen bears a similar row in a reverse position ; 

 besides tlicse, behind tlie tlrst thoracic segment, there is a laterodorsal scries of high, 

 conical warts, one to a segment in each row, situated a little in advance of the middle, 

 and omitting very long, curved, backward sweeping, tapering hairs; also a ventro- 

 stigmatal row of small warts, tlireo on each segment, not placed in a line, emitting 

 straiglit, delicate, tapering, llnely pointed liairs, of wliich one, a central one, is longer 

 tliau tlie otlier two, and all are directed outward and a little downward, so as to reach the 

 s\irface upon whicli the animal rests. In addition, there are on each side four 

 longitudinal series of .smooth lenticles, two of them larger and two smaller; the two 

 larger liave each one lentiele to a segment, placed in tlie middle, and consist of a 

 supralateral and an infrastigmatal series; the smaller ones consist of a snprastigniatal 

 series, two on a segment, at equal distance from either margin, and a laterostigmatal 

 row, one on a segment, placed in the middle. Legs long and very .slender, the basal 

 joint short, conical, the remainder cylindrical and equal ; claws pretty large, long, 

 pretty strongly curved, tapering; prolcgs short and rather stent, globular at Ijase, 

 beyond very short and lialf as l)road. the hinder pair quite long, tapering Irat little. 



Mature caterpillar. Head well rounded, rather broader than high, broadest above, 

 tapering very slightly below, with a rounded curve which is rather broad and full 

 beneath, docked squarely at the labrum; it is apparently deepest in the middle, and 

 has tlie front full. Triangle very large, much higher than broad, extending nearly to 

 tlie summit of the hea<l ; a very few long hairs at tlie lower part of the head. Basal 

 joint of antennae mainniiform, pretty large, second about as long as broad, third not 

 much smaller than llie second, twice as long as broad, cylindrical, liearing at its apical 

 edge a number of hairs, wliich conceal in part at least tiie fourth joint. Ocelli six in 

 number, of uniform size, like a flattened hemisphere in shape, live placed in a strongly 

 curving row, equidistant from each other, and separated by less than their own diam- 

 eter, the lower two opposite the posterior base of the antennae, the others curving 

 backward, the upper four on the arc of a pretty small circle, the sixth behind the 

 others, a little further removed from the uppermost than from the fourth from the 

 top, and forming with these rather less than a right angle. Labrum large, very broad, 

 half as long as broad, the outer angles square Ijut rounded off. the middle two-fifths 

 of the fi-ont margin roundly and con.siderably excised. Mandibles armed at the tip 

 with large, triangular, bluntly pointed teeth, half as long again as broad. Maxillae 

 ■with the inner and outer palpus exactly similar in size and shape, the penultimate joint 

 being about tw'ice as long as broad, tapering, the apical minute, conical. The apical 

 two joints of the labial palpi are similarly shaped but much smaller and proportion- 

 ately slenderer. Spinneret long, and beyond the conical base equal and not very slen- 

 der, the tip bluntly rounded, directed vertically. 



Body pretty regularly arched longitudinally, with tlie posterior edges of the seg- 

 ments elevated a little, and thus showing the divisions plainly; the sides of the body 

 slope abruptly, widening considerably at the base. Viewed from above elliptical, aliout 

 equally rounded in front and behind, covered with minute dots, which a closer inspec- 

 tion sliows to be made up of a raised centre from which radiate six nearly horizontal, 

 very short rays, and from the centre a rather short hair; these are so thickly distrib- 

 uted as to give the appearance of a dense pile ; provided also with a laterodorsal row 

 of rather long hairs, four or five times longer, arising from simple papillae, and with 

 similar long hairs at either extremity of the body and along the ventrostigmatal fold. 

 Vescicle of seventh and lateral caruncles of eighth abdominal segments present 

 (87:14, 10); claws of legs long and very slender, heeled at the base, tapering, very 

 gently curved ; last joint of legs long and slender, equal ; prologs armed at the tip with 

 a double, curving row of booklets, about eighteen in number, very long and very 

 slender, scarcely tailoring, curving strongly and regularly, the tip bluntly pointed. 



Chrysalis. Scarcely more than twice as long as broad; viewed fi'om above, the 

 sides are straight froiii the liasal wing tubercle to the middle of the abdomen, but 



