2 LYC^NA II., III. 



After second moult: length .12 to .16 inch; general shape as before, but 

 the tlorsuin is now covered from 3 to 10 by a low, broad, continuous, tubercu- 

 lous ridge, cleft to the body at the junctions of the segments, the anterior edge 

 on each segment depressed, the sides incurved ; 2 is more flattened than before, 

 and the outer border is thickened into a rounded rim, leaving within the curve a 

 flat, depressed space ; surface pubescent ; about the base a fringe, as before, and 

 a few short hairs on summit of dorsum; color in spring, pale green, the dorsum 

 whitish, usually with a median reddish line or stripe from 3 to 10, often macular; 

 in summer, variable, buff or pale green, without spots, the second segment Ijrown ; 

 in some examples the dorsum and sides are mottled with dark green and brown ; 

 occasionally one is wine-red throughout, or red with a white basal stripe, and 

 white along the edges of the dorsal tuberculations ; in fall, dull green, more or 

 less marked brown. (Fig. d.) Duration of this stage 3 to 4 days. 



After third moult: length .18 to .2 inch; in shape nearly as before, the dor- 

 sum higher, segment 2 more produced and flattened ; the long hairs on dorsum 

 lost, but the basal fringe as before; color variable, as in previous stage. (Figs, e 

 to e*.) Duration of this stage 3 to 4 days. 



After fourth moult: length .25 to .3 inch; maturity is reached in 3 to 4 

 days. 



Mature Larva. — Length in spring and fall, .4 inch, in summer, .5 to .55 inch ; 

 shape long oval, the base flat, dorsum high and sloping both ways from about 

 the middle, the last segments flattened ; the second segment is bent forward to the 

 plane of base, produced, flattened, and whoUj' conceals the head when the larva is 

 at rest; viewed from above the sides are nearly parallel, the two ends (segments 

 2 and 13) are about equally I'ounded ; from 3 to 10 inclusive is a dorsal ridge 

 made of tuberculous processes closely joined at the junctions of the seguients, the 

 front edge of each depressed, the posterior edge raised and rounded, so that each 

 process seems to fit into the next preceding ; 2 is depressed in middle, and 

 the whole outer edge is thickened and rounded ; color variable, in spring, usually 

 as follows : the ridge whitish, often stained red, or it is brown, light or dark ; the 

 upper part of side olive-green, with a darker green, or sometimes a dull red, 

 patch along the posterior edge of each segment ; below this area pale green, and 

 along base more or less brown ; 11 to 13 are mottled in shades of green, often 

 with brown, and 2 is either green or brown ; if the latter, then with a brown 

 patch in the depression ; under side pale blue-green ; color in summer, sometimes 

 yellow-white or all delicate green, 2 being brown ; or the ridge is light green and 

 the sides dark, often with brown patches over all ; or light green, with a medio- 

 dorsal macular deep green band, and a similar one along base ; or the whole sur- 

 face may be wine-red, or even chocolate-brown ; color in fall, green, with more or 



