1848 BUTTERFLIES BEYOND NEW ENGLAND. 



base of the wing, and is here caerulean blue, while beyond this the scales are more 

 sparse, are greenish yellow and sometimes fill the larger part of the interspace nearly 

 to the submarginal marliings. Expanse of wings $ , 100-109 mm. : ? , 112-116 mm. 



The following descriptions of the early stages are those given by Edwards with only 

 sucli changes in phraseology as seem necessary. 



Egg. Spherical, a little flattened at base; color greenish yellow. 



Caterpillar. First stage. Head obovoid, a little depressed at top, smooth, shining, 

 color yellow-brown, a shade darker than body. Body at the end of this stage cylindri- 

 cal, greatly thiclsened from the second thoracic to second abdominal segments ; l)eyond 

 tapei'ing to the eighth abdominal segment, then thicl\ening to end, the back and sides 

 after second abdominal a little incurved : the first abdominal segment has a thin square 

 ridge and on each curve of same a thick fleshy process, longer than others on l)ody, 

 thickly beset with straight hairs ; there are two rows of similar processes, supralateral, 

 smallest on thenarrow segments, colored as the segments tliey stand on, those on the 

 eightli and ninth abdominal segments considerably larger than any others except on 

 the first thoracic segment ; besides the supralateral rows, are two subdorsal running 

 the wliole length of body, and one row on side, another along base ; all these are small, 

 simple tuberculations with hair on end; color of body brown-yellow mai-ked with 

 white ; a white band, not very clearly defined, especially on its lower edge, passes along 

 tlie side of the second thoracic to the fourth abdominal, turning up on the fourth ab- 

 dominal to edge of dorsum, the two extremities there not quite meeting ; the eighth and 

 ninth abdominal segments are white; under side greenish brown; all the legs same. 

 Length. 2.5 ram. ; near the end of the stage, 7 mm. 



Second stage. Head subcordate, finely granulated, shining yellow-brown, with fine 

 hairs. Body with same general shape, at first the dorsum on the thickened segments is 

 smooth and rounded, but after a few hours becomes flattened a little, and corrugated ; 

 the first thoracic segment has a thin, high, square topped ridge, tlie corners produced, 

 and each bears a short tliick process, pilose; on the eighth abdominal segment .are two 

 short subconical processes, on the next two like them but larger, and these four form 

 part of the two supralateral rows, which are almost suppressed on the second to sixth ab- 

 dominal segments but are distinct on the seventh, the two subdorsal rows of tubercles 

 are minute; color of body yellow bi-own. darkest on posterior half, the anterior seg- 

 ments a little red-tinted ; the white lateral band as before, but distinct, white ; the 

 dorsum and upper part of the side of the eighth and ninth abdominal segments and a 

 little of the seventli pare white, the lower part of the side less pure, the shield sordid 

 white; over tlie white band, on the third thoracic segment is a large, sub-oval, black 

 ocellus in a narrow yellow ring; this ocellus is mostly occupied by a prominent, rounded, 

 black process with many short black hairs on it. Length, 8.4 mm. 



TTiird stage. Head as before, and it and the first thoracic segment are one color, 

 honey yellow. Body of same shape, .and as before, the dorsal .area on thickened seg- 

 ments becomes corrugated and flattened and depressed some hours after the moult, and 

 the depression is enclosed by an elevated oval rim ; the second thoracic segment is a 

 little excavated on dorsum on anterior part ; the flrst thoracic segment is a square topped 

 ridge, but the processes have passed away ; on the eighth and ninth abdominal segments 

 the processes as at previous stage, but the rest of the laterodorsal rows have disappeared, 

 and in place of part of them are slight, rounded elevations, like those of the subdorsal 

 rows ; so that on the second thoracic segment there are two subdorsal and two laterodor- 

 sal rows of these knobs, but two subdorsal only on the last thoracic and first two abdomi- 

 nal segments, on the fifth and sixth abdominal segments are two subdorsal, little, round, 

 lilaceous spots ; color yellow brown to dark brown, the anterior parts having most yel- 

 low; the sides of the posterior segments of a black hue; the white side stripes as 

 before ; eighth and ninth abdominal segments white, the shield greenish brown above, 

 but white below, and the anal claspers white; the white extends into the sides of the 

 seventh segment, but the brown dorsal area runs back in a sharp point nearly to the 

 eighth ; on the last thoracic segment the eye-spot is large, flattened in front and there 

 velvet-black, but behind this is aprominent, black, vitreous, bead-like elevation, smooth 



