1480 THE BUTTEllFLIES OF NEW ENGL.OsD. 



Egg. A little lii2;li('r tlmn broail, broadly rouiuled at base, so as to be broadest just 

 iiliove the base, uarrowliig regularly uearly to the tip and broadly arched, a little 

 flattened above; sides furnished with sixteen ribs of which only six reach the niicro- 

 pyle, most of them stopping aljruptly at the rim of the summit ; they are compressed 

 and not high excepting above, where they are fully twice as high as below; space be- 

 tween the ribs filled with straight and nearly eiinidistant raised cross lines about .033 

 mm. apart. The ribs are about .14 mm. apart and when two of them unite it is very 

 abruptly, the two ribs bending toward each other so as to meet at right angles; floor 

 of cells very delicately punctuate: ribs at highest about .04 mm. high; the highest 

 ))oint of the ribs is distant about .2 mm. from the edge of the micropyle. The micro- 

 pyle rosette is very simple, consisting of but six or seven nearly equal, roundish cells 

 alJout .015 mm. in diameter, five or six arranged in a disconnected series around a 

 central one ; together they occupy but one-third the diameter of the shallow depression 

 in which they occur and to the edges of which the ribs reach ; the central cell is 

 slightly smaller than the others ; the floor around them is delicately punctate. Color 

 pale pea-green, becoming salmon red in two days. Breadth, .80 mm. 



Caterpillar. First stage. Head (80 : 30) piceous ; body pale green, almost color- 

 less when hatched. 



i^ccond stage. Head (80 : 3G) black, with white hairs. Body livid greeu with a 

 brownish tinge, similar hairs and no markings. Legs pale, slightly tinged with 

 brown ; dorsal sliield of first thoracic segment scarcely darker than the body. 



Third stage. Head (80: 42) scabrous, rust red with a circular spot of a paler, some- 

 what yellowish color, occupying the space between the ocelli and the base of the tri- 

 angle; collar black: ocelli black; basal joint of antennae broad and pale, others 

 blackish fuscous, the bristle pale; labium pale, the palpi black-ringed; mandibles and 

 labrum blackish testaceous. Body very pale green, covered profusely with white or 

 colorless, fungiform, very short and minute hairs springing from pale warts, arranged 

 iu tolerably regular, transverse rows and collected, on the abdominal segments, in a 

 lateral line. Front part of first thoracic segment smooth and pallid and the rest of 

 it like the other segments, there being no distinct dorsal shield. Legs and prolegs 

 pallid with a greenish tinge, the claws of former slightly infuscated ; stigmata pale 

 luteous. Length, 10 mm. ; breadth, l.O mm. ; breadth of head, 1.5 mm. 



Fourth stage {77 : 5). Head (77:4) black, a little glistening, with delicate, raised 

 and rather dense reticulation and extremely short, sparse, gray pile, the summit of 

 each hemisphere with half a dozen slight, rather elevated tubercles; posterior surface 

 smooth, piceous ; three small, subequal, circular, orange spots, one just in front of the 

 summit tubercles, one suljtriaugular or transverse at Ijase of mandibles, and one 

 laterally midway between these, generally a little smaller and sometimes fainter than 

 the others. Third joint of antennae piceous, the rest livid; incisure of clypeus and 

 basal joint of labial palpi livid, other mouth parts black. Ocelli piceous. Body 

 pallid with a slight infuscation and a very faint greenish yellow tinge, espec- 

 ially at the incisures. Papillae faint yellowish pallid, forming a very inconspicuous, 

 slender, faint yellowish, lateral line, and a broader but even fainter, infrastigmatal 

 stripe, the latter not wholly made up of papillae. Legs, prolegs and stigmata of the 

 color of the body, the claws of the first slightly testaceous. Length of body, 12.5 

 mm. ; breadth of same, 2 mm. ; of head, 2.25 mm. 



Last stage {77 -.S, C>,10, il). Head (77: 2) strongly vermiculate with short, white 

 hairs, each side produced above into a slight, rounded promineuce; color varying from 

 pale greenish fuscous to pale fawn-color; the sides of the head, including the promi- 

 neuce, but not extending down to the middle line, togetlier with a large rounded spot be- 

 tween the ocelli and triangle pale salmon color or orange; sometimes, or perhaps most 

 frequently, the color of the sides is broken up into large rounded spots, so that there 

 are three, one at the promineuce on the summit of each hemisphere, another, some- 

 times more or less confluent with the first, in the middle of the side posteriorly, and 

 the third, generally more distinct than the others, between the ocelli and the base of 

 the triangle at the lower outer angle of the head ; posteriorly the head is faint orange, 



