218 THE PEANUT— THE UNPREDICTABLE LEGUME 



Third Instar. Head round, shining black, the sides covering the eyes and sutures 

 of clypeus, pale luteous ; width .65 mm. Shields and tubercles shining black, tubercles 

 large, setae coarse and black. Body greenish gray, dorsal and subdorsal lines whitish, 

 straight, narrow, and even ; ground color darker laterally, ending in a blackish shade 

 touching tubercle iv, defined on the ventral side. A broad, pale, substigmatal band; 

 subventer grayish green, shading to the scarcely paler venter. Body uniform, joint 

 12 very slightly enlarged. 



Fourth Instar. Head black, paraclypeal pieces and labrum pale whitish, sides no 

 longer pale, but filled in with black mottlings; rounded, slightly bilobed, shining; 

 width 1.1 mm. Cervical shield black, bisected, not strongly cornified; anal flap dusky; 

 tubercles large, black. Body greenish gray, dorsal, subdorsal (at tubercle ii), and 

 traces of narrow lateral lines pale, as before ; substigmatal line broad, white, mottled 

 with greenish and divided by a central band of this color. Feet dusky ; setae distinct, 

 black, rather long. 



Fijth Instar. Head rounded, slightly bilobed ; clypeus large, the paraclypeal pieces 

 nearly attaining the vertex; mandibles prominent; brown-black, sides mottled with 

 pale, especially posteriorly, paraclypeal pieces white, as also the verticle suture; 

 labrum pale, width 1.8 mm. Body cylindrical, normal, joint 12 very slightly enlarged, 

 feet nearly equal. Above dark brown, a little dotted with pale, venter more greenish, 

 but also brown mottled. Dorsal line pale, nearly obsolete except on the thorax and 

 anal plate; subdorsal line distinct, white, straight, a little broken on joints 12 and 

 13 ; stigmatal band broad, sharply edged, not inclosing the spiracles, white, nearly 

 filled in with dark red mottlings. Feet all dusky; cervical shield sooty black, not 

 strongly cornified, cut by dorsal and subdorsal lines; anal plate dusky, with two 

 white spots, formed by the broken dorsal line; tubercles distinct, black, with short, 

 stiff, black setae. 



Sixth Instar. Head rounded, bilobed, clypeus large, the paraclypeal pieces reach- 

 ing three-fourths of the distance to the vertex; brown-black, sides posteriorly 

 mottled with pale, sutures white, all as before; width 3 mm. Body as before, joint 

 12 very slightly enlarged, feet equal. Blackish brown above, varying in shade, the 

 lateral space tending to be darker, as also a space each side of the dorsal line; 

 venter pale greenish, densely mottled. Dorsal line whitish, as broad as the subdorsal 

 and regular, but much fainter; subdorsal line mottled with pinkish, straight. The 

 pale mottlings of the body are heavier between tubercles i and ii and across tubercle 

 iii, suggesting obsolete lines. Slight black streaks bordering the subdorsal line below. 

 Substigmatal band broad, sharp, the edges a little irregular, white, filled in with pale 

 red mottlings. Feet all dusky; cervical shield black, very narrowly cut by white 

 dorsal and subdorsal lines ; anal plate dusky, cut by pale dorsal line, with a con- 

 striction anteriorly. Tubercles cornified, distinct, dark brown, largest on joints 12 

 and 13 ; tubercle iv on joint 5 is opposite the upper corner of the spiracle, on joints 

 6 and 7 below the middle, on 8 at the middle, on 9 above the middle, on 10 at the 

 upper corner, on 11 low down halfway between the spiracle and tubercle v, and on 

 joint 12 opposite the lower corner of the spiracle. Setae short, rather stiff, dark. 



Pupa 



Dark reddish brown, darker on the prothorax, black immediately before emerg- 

 ence of the adult; labrum separated from the clypeus by distinct suture, quadrate; 

 fronto-clypeal suture not distinct; libial palpi visible, about one-fourth length of 

 maxillae ; mesothoracic wings reaching to caudal end of fourth abdominal segment ; 



