APATURA II. 



Not long after this moult, having roachod the length of .25 inch, most of the 

 Iarvii3 change color, the body gradually becoming of a mixed red and gray, with 

 dark o-reen dorsal and lateral lines; tlie head and horns also chanu;e to brown. 

 (Figs. e,e'.) A few ma_y however proceed to their third moidt, after which they 

 will assume a winter coat, but of less decided color than that of the others, the 

 green becoming brownish or vinous. 



A few days after resuming activity in the spring, the third moult is passed. 

 Length now .4 inch ; the anterior segments have become much the lartjest, the 

 ■shield on second nu)re pointed, the head larger in proportion, the vertices more 

 prominent than at last stage, and tlie horns greatly developed ; the body green, 

 striped longitudinally -with white and yellow ; color of head light green, with 

 two pale vertical stripes in front. (Figs./, f^.) 



About ten per cent, of the larvi\3 raised by me varied at tliis stage in the 

 markings of the face. One was wholly pale black except for four marks, two at 

 the sides, and two in front above the mandibles ; and the front of the antlers was 

 black. This stafire endured ei<;:ht davs. 



xVfrer iburtli mouK : length .8 inch. (Fig. _r/, nat. size; rf-g'^ showing Varia- 

 tions in marking of head ; g^, sections of surface on dorsum and side.) The larva? 

 now grew rapidly and in from five to ten daj's had reached maturity, those which 

 lingered, and changed to chrysalis the latest, invariably producing female butter- 

 flies. 



Mature Larva. — Length L4 in. ^ (Fig. h) to L7 in. ' (Fig. i), greatest thick- 

 ness of the latter, .24 in. ; body sub-cylindrical, someAvhat flattened dorsall}', the 

 sides flattened, sloping, the base broad; thickest at sixth to eighth segments, ta- 

 pering rather evenly either way ; the last segment ending in a forked tail ; the 

 dorsum covered by a broad yellow or buff band, which is edged on either side by 

 white, and is bisected by an indigo-ldue line ; the sides striped with dull green 

 above, and below by two stripes of yellow, another of green being ))etween them ; 

 the under side and legs pale green ; each segment creased five times so as to 

 make four elevated ridges, the posterior two being broader than the others; the 

 whole upper surface covered with minute tubercles, AAhite, translucent. sul)-conic, 

 irregularly placed on the ridges, some in each row l)eing two or three times as 

 large as others ; some of these have at summit single short fleshy appendages, 

 others a w hite hair ; head pyriform, truncated .at top, with an angidar depression, 

 the vertices sub-conic ; on tliese last are stout many-pronged antlers, the prongs 

 fleshy, round, and somewhat curved downward ; on either side of the face a ver- 

 tical row of simple prongs ; color of head pale green, the face marked Ijy four 

 vertical whitish stripes ; the surface both of head and antlers dotted with punc- 

 tures wiiich disclose a darker sub-color ; the entire antler usually yellow- 



