1270 THE BUTTERFLIES OF NEW ENGLAND. 



Second starje. Head (80: lo) piceous above, Ijeconunir fiiUs;iiii>iis l)efoiT the middle 

 and below with a yellowish tinsje, covered with very short hairs. Mouth parts dull 

 amber colored or pale iu part; ocelli black in an amber tield ; antennae livid, mixed 

 with blackish. Body covered with narrow, ecpial, transverse stripes of black 

 and white, unitina; in a common, dark, fuliainous tield about the stigmata, below which 

 is a broken, longitudinal, narrow, white stripe; a single white stripe on the anterior 

 part of the segments is frequently supplanted by a lemon yellow one, especially on the 

 first thoracic and first abdominal segments where the change is complete. In another 

 it is most noticeable in tlm laterodorsal field. Lips of osraaterial cleft black. Body 

 covered uniformly witli very short, black, infrequent hairs. Legs dusky; prolegs 

 dusky on basal half, yellowish on apical. Length, 8. .5 mm. 



TIdrd stage. Head (80: U) smoky brown above, much paler becoming luteous 

 below. Anterior ocelli set in a blackish fuscous bantl; basal joint of antennae white, 

 rest of the antennae and other mouth parts pale luteous. The general hue of tlie body 

 is, according to Riley, often smoky purple, the lines much more margined with black 

 tlian in previous stages, and the thoracic segments are also blacker. In a blown speci- 

 men before me the thoracic segments are so much darker as to be almost wholly 

 blackish fuscous with narrow, transverse, tremulous lines of dirty yellow. The incis- 

 ure between the third thoracic and first abdominal segments is velvety black, as in 

 subsequent stages, bordered in front by a pearly white band of equal width which 

 along the stigmatal line encloses a slender streak of blackish fuscous, and is bordered 

 beliind by an equally broad stripe of lemon yellow terminating at the spiracles. The 

 abdominal segments are pale testaceous at tlie incisures, the body of each segment be- 

 ing blackish fuscous, more or less fuliginous, with three equal and equidistant, narrow, 

 tremulous stripes of pale yellow, the anterior one rather more strongly tinged with 

 yellow than the others, especially below where it passes just in front of the stigmata; 

 these stripes terminate just below the stigmata, and to a greater or less degree are 

 united at the base by a short, transverse, infrastigmatal, white stripe, parallel to 

 which is a ventrostigmatal white stripe broken at the incisures and faintly margined 

 with fuliginous. Length, li) mm. ; breadth of head, 2 mm. ; breadth of third abdom- 

 inal segment, 3.75 mm. Described from a blown specimen. 



Fourth stage. Head (80 : 15) much as in preceding stage bnt distinctly pale luteous 

 behind the summit of each hemisphere and on the lower third of each of the cheeks, 

 including the entire ocellar field with the black bases to the ocelli. Body much as in 

 tliird stage but the ground color of the thoracic segments is a warm, rather pale 

 purplish brown enlivened by many transverse lines of greater or less length of black 

 green, and all the transverse, bright stripes margined distinctly with velvety black or 

 blackish brown. The incisures of the abdominal segments are broaiUy pallid and the 

 transverse markings much more diversified than before, the ground being paler than 

 on the thoracic segments, but encroached upon to such a degree by tlie transverse 

 bandings as to be very inconspicuous. Next the pallid incisures, however, especially 

 in front, the segment is always more or less fuliginous, and there follow four black- or 

 brown-edged bright bands, the second one brightest and lemon yellow, the others less 

 brilliant, the ground appearing merely as slender lines frequently, perhaps generally, 

 broken between the dark edging of the adjacent stripes. The infrastigmatal and ven- 

 trostigmatal pale stripes as in the preceding stage, but more distinctly margined with 

 black or brownish. Length, 30 mm. ; breadth of head, 2.5 mm. ; breailth of third ab- 

 dominal segment, 7.5 mm. Descril)ed from blown specimens. 



Last stage (76:14). Head (80:10) green, paler beneath than above, the paler, 

 lower portion sometimes ascending in a triangular way upon the front as higli as the 

 top of the frontal triangle but including more than it, while the restricted frontal tri- 

 angle is nearly as dark, at least on its upper half, as the upper portion of the head. 

 Ocelli black. At the earlier part of this stage the appearance of the cater|>illar is 

 much the same as in the fourth stage, only the velvety black band at the incisures 

 between the last thoracic and the first abdominal segments is much brighter and so 

 more conspicuous, and is edged anteriorly with a narrow stripe dift'ering from the ground 



