APATURA I. 



(Fig. 5^) ; occasionally, however, some of this brood are as dark colored as any 

 of the later ones. 



Egg. — Color pale green; in shape nearly spherical, flattened at base, and 

 having eighteen slightly prominent vertical ribs and many fine, horizontal, eqni- 

 distant striaj. 



The larva emerges from the egg in three days. Length .08 inch ; whitish- 

 green ; cylindrical, thickest at second segment, tapering gradually to the last, 

 which is slightly forked ; surface covered with minute tubercles from each of 

 which springs a short hair ; head round, bilobed, twice the diameter of the sec- 

 ond segment, black, covered with tubercles. (Fig. c.) 



The first moult takes place in three days from the egg. Length .2 inch ; 

 yellow-green, the dorsum covered by a band composed of yellow tubercles ar- 

 ranged in two longitudinal rows, with cross rows upon the anterior part of each 

 segment, the remaining space on the posterior part of the segment green ; 

 along the side a crenated line, and below the spiracles a straight line, each 

 formed of yellow tubercles ; scattered tubercles over the whole upper surface ; 

 head either black, or piu'ple, or green, the mandibles and ocelli brown in case 

 gi'een prevails ; at the vertices large green stag-horn processes, with three fleshy 

 prongs at top, smaller prongs below and at base, and three along the side of 

 the head below the horns, the tips usually purple or black ; tail forked and 

 roughly tuberculated. (Figs, d, (P, larva and head magnified.) 



The second moult occurs in from three to four days. Length .25 inch ; yel- 

 low-green above, blue-green at sides and beneath ; the bands and lines as 

 before ; the tubercles much enlarged, prominent, irregular ; tail more deeply 

 forked ; head brown, mottled in front with pale green, the horns enlarged. 

 (Fig. e.) 



The third moult follows in four days. Length .35 inch ; not essentially dif- 

 ferent. (Figs./, /I) 



The fourth and last moult in four days. Length .05 inch ; the body stouter 

 on the anterior segments, the horns reduced in size, the prongs less jirom- 

 inent. 



Before the fourth moult the larva covers the surface of the leaf about its 

 resting place with silk, and after the moult remains quiet for nearly two days, 

 when it becomes active and feeds ravenously ; the body now grows rapidly, 

 lengthening about one tenth inch daily, till it reaches maturity five days after 

 the fourth moult. 



Mature Larva. — Length 1.2 to 1.3 inch ; shape sub-cylindrical, being 

 somewhat flattened dorsally, very thick in middle, tapering regularly either way, 

 the second segment being of about the same width as the last ; the tail deeply 



