17 
nearly as large as the ribs themselves and forming rectangular or slightly hexagonal 
areas; above, the ribs do not diminish till near the vertex, where they become con- 
verted into reticulations, smaller toward the micropyle; color, pearly pink; diameter, 
5 mm. 
Stage I. — Head rounded, bilobed, about as high as wide, clypeus triangular, half 
as high as the head, without perceptible paraclypeal pieces; labrum quadrate and 
with the mandibles projecting; shining jet black; antennas moderate, pale; setse short, 
pointed; width .25 mm. Cervical shield straight before, rounded behind, jet black, 
bearing 4 setse on each side; two more (of which one is scarcely visible) detached 
posteriorly, laterally; prespiracular and subventral tubercles single- haired; anal plate 
semicircular, dusky blackish. Body whitish, slightly translucent, tubercles large, 
round, black, with very distinct, short, black, pointed setse. Arrangement normal, 
no subprimaries; on joints 3 and 4, ia and iia small, ib and iib large, all well sepa- 
rated and equally spaced; iv and vi single-haired; on the abdomen i, ii, and iii large, 
equal, i and ii on joint 12 approximately in a square, iv behind the spiracle and with 
v as large as the dorsal ones. Leg shields small, quadrate, black; ventral tubercles 
minute, also black. Feet of joints 7 and 8 slightly smaller than those of joints 9 and 
10. After feeding the larva becomes green from the food. 
Stage II— Head round, slightly bilobed, shining black; width .4 mm. Body as 
before, a little thicker, and joints 12 more distinctly enlarged; cervical shield black; 
anal plate not cornified, pale like the body, shaded with gray on the sides. Color 
whitish, with faint traces of dorsal, subdorsal, lateral, and stigmatal lines. Tubercles 
large, black, and distinct as before, the subprimary ones present. Hairs short, stiff, 
black. Thoracic feet black, the others pale, with dark shields. 
Stage III. — 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, setse 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. 
Stage IV. — 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 str&ngly cornified; anal flap dusky; tuber- 
cles 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; setse distinct, 
black, rather long. 
Stage V. — 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 vertical 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 setse. 
Stage VI. — Head rounded, bilobed, clypeus large, the paraclypeal pieces reaching 
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 
5525— No. 29—01 2 
