1790 BUTTERFLIES BEYOND NEW ENGLAND. 



Third stage. Head bi-own, mottled in front with pale sreei:, tlie liorns enlarged. 

 Body yellow-sreen above, blue-green at sides and beneatli ; the bands and lines as be- 

 fore; the tubercles much enlarged, prominent, irregular; tail more deeply forked. 

 Length, 0.4 mm. 



Fourth stage. Not essentially diflerent. Length, 9 mm. 



Last stage. Head subquadrate, longer than broad, punctate, covered with minute 

 tubercles, green, -with four pale, vertical stripes upon the front; mandibles and ocelli 

 brown; horns small, yellowrgreen, each furnished with two short, terminal prongs, 

 which are tipped with brown ; other small prongs about the middle of the horns and 

 at base, and along the top of the head, and three at sides of Iiead. Shape of body sub- 

 cylindrical, being somewhat [flattened dorsally, very thiclv in middle, tapering regu- 

 larly eitlier way, the first thoracic segment being of about the same width as the last; 

 the tail deeply forked; color yellow-green dorsally, the bluo-greeu on the sides; the 

 whole surface granulated, owing to minute tuljercles on the sides and larger and ir- 

 regular ones on the back ; these last arranged in transverse rows, separated by deep 

 creases, there being four rows to each segment; on either side of the dorsum a clear 

 yellow line from head to end of tail, and between these a less distinct pale stripe, on 

 which is set an oval yellow spot on the anterior end of each segment; often this stripe 

 is wanting, and the yellow spots only appear; on the side a pale yellow wavy line and 

 an infrastigmatal, straight line; under side and legs blue-green. Length, 30-33 mm. 



The hibernating larvae at maturity differ from those described above principally in 

 that the yellow spots of the dorsum have disappeared and given place to a longitudinal 

 yellow line, making three similar lines on a dark green ground, the inner edges of the 

 two exterior lines being whitish; the color of the whole body is greenish-yellow. In 

 both the body stouter on the anterior segments, the horns reduced in size, the prongs 

 less prominent. 



Chrysalis. Compressed laterally; the outline of the under side convex, regular ; 

 the al)domen prominent dorsally, much arched, sharply carinated, the anterior edge of 

 each segment on the keel produced and clubbed and marked on either side by a shining 

 black dot; the last segment terminating in a long, bifurcated pad of booklets; the 

 thoracic, segments depressed at an angle of forty-flve degrees from the end of the 

 keel, tlie sides excavated in the direction of base of wing; mesonotum angular, 

 rounded somewhat at summit ; the head case produced, subconic, the palpi cases prom- 

 inent, pointed ; color either delicate yellow-green or blue-green, finely specked with 

 pale yellow over tiie whole surface ; the neuration of the wings distinct ; a yellow line 

 passes along the keel and to the mesonotum, at which it forks to the palpi cases; an- 

 other passes along the posterior edge of the wing case, and is joined by an undulating 

 line upon the side of the abdomen. Length, 21.G mm. 



This i.s a common butterfly of the southern half of the United States 

 east of the Great Plains. It is not known to exteml into Mexico. 



"Celtis is exceedingly alert, i-estless, and inquisitive, active on the wing, 

 but without sustained flight, and darts from one object to another so 

 swiftly that the eye can scarcely follow it, alighting but for an instant on 

 tree trunk or leaf, the dress of one passing, or the traveller's horse. More 

 than once it has sprung upon tlie net which I was carrying. Its usual atti- 

 tude is expressive of its disposition, the wings erect, the head and antennae 

 raised, suspicious of surprises. But it will haunt a favorite spot for days, 

 and the collector has only to wait patiently a while audit may be captured. 

 It is readily attracted also by a sugared bait, and a string of dried apples, 

 saturated with syrup and suspended among the liranches of the tree which 

 it frequents, may be employed to advantage. Occasionally, I have seen it 



