1584 THE BUTTERFLIES OF NEW ENGLAND. 



the pseudostigmatic blister on the middle of the sides of the othei- thoracic segments 

 pale greenish testaceous ; the long recurved hairs of the last segment black, accom- 

 panied Ijy a few backward curving hairs along the edge of the anal plate, less than 

 half as long; legs and prolegs the color of the body; claws of the former testaceous ; 

 s|)iraclcs scarcely distinguishable from the color of the body, barely testaceous. 

 Length of body, 2.5 mm. when born ; 4 mm. when full grown ; breadth, .3 mm. to .45 

 mm.; height of head, .6 mm.; length of dermal appendages, .065 mm.; of the re- 

 curved hairs of the last abdominal segment, about .3 mm. 



Second stage. Head (80 :47) as broad as the broadest part of the body, rich bronze 

 brown, faintly marked witli the scattered hair insertions. Body pale green, with the 

 piccous thoracic shield as before, distinctly traversed by the transverse creases of 

 each segment; the numerous hairs simple, short, very delicate, blackish (excepting 

 along stigmatal line, where they are pale), and seated on shining green warts of 

 minute size and scarcely any elevation. Hairs of last segment not much longer than 

 the others and not recurved. Beneath paler green, the legs and prolegs the same, the 

 claws of the former fuscous, except the front pair, 'which are black in front. 

 Spiracles luteous. Length, fi mm. ; breadth, .7 mm. 



Third stage (80:48) blackish brown, sometimes strongly tinged with castaneous; 

 labrum and mouth parts castaneous ; the surface slightly rugose, by raised lines form- 

 ing minute polygonal cells (i. e., honeycombed with line raised lines) and studded with 

 short white pile. Body very slender, as broad in middle as the head, pale green with 

 a livid tinge; a darker green dorsal line; the whole upper surface frosted by short 

 ■white pile, gradually increasing to tolerably long hairs on the last two segments. They 

 are absent, however, from the first thoracic segment, which is livid, with a narrow 

 posterior, transverse, equal, black shield, extending down nearly to the stigmata, 

 broken just before the extremity so as to leave an independent round spot; an indis- 

 tinct, slender, pallid, stigmatal line on the abdominal segments; under surface paler 

 green, legs and prolegs concolorous ; the front pair of legs and the others to a less ex- 

 tent infuscated, the claws blackish testaceous; stigmata pallid, with a luteous ring. 

 Length, 9 mm. ; breedth of body, 1 mm. ; of head, 1 mm. 



Fourth stage. Head (80 : 49) blackish brown, with a large, broad, vertical, pale band 

 each side of the triangle, extending from the base half way to the top of the tri- 

 angle, and a narrow, vertical pale band on the sides of the front above, and fading out 

 below; besides the posterior edges of the head are of the same pale color; all of this, 

 however, evident only at first, for the head is apparently wholly bespangled with coni- 

 cal but very irregular, minute, snow-white tubercles, each giving rise to a short white 

 hair, giving the head the sameflocculent appearance as the body, but this does not ap- 

 pear directly after moulting, since the apparent tubercles are only flocculent gather- 

 ings at the base of the hairs. Body slender, equal, as broad in middle as the head, 

 somewhat flattened, very pale green, with slender, brighter green, dorsal line, and 

 on the abdominal segments a similar but more obscure laterostigmatal line, all nearly 

 obscured l)y the heavy covering of snow-white, flocculent pile, giving the entire body 

 a frosted appearance, each hair being a very irregular, inverted cone or prickly sub- 

 globular club, supported on a short and slender stalk; this flocculence does not sur- 

 round the hair when it first assumes this stage. Length, 13.5 mm. ; breadth of body, 

 1.8 mm. ; of head, 1.3 mm. 



Last stage (77 : 24). Head (80 : 50) deeply and densely, but very delicately rugose and 

 covered with short and most delicate white, but not fiocculent, tapering and pointed 

 hairs. It is of a rather dull frosted white color, with vertical stripes of ferruginous, 

 namely : abroad, lateral, vertical stripe, running from the anterior ocelli to the verte.x, 

 narrowing above and strongly tinged with brown; a broad and equal, vertical, median 

 stripe from the summit of the triangle to and over the top of the head, narrowly divided 

 by the pale suture; a narrow, vertical, median stripe in the triangle itself; and on either 

 side of the triangle, and resting upon the narrow and smooth white band which sur- 

 rounds it, a narrow, vertical stripe, extending from the base of the triangle to half 

 way between its summit and the crown of the head and narrowly separated from the 



