244 
Journal New York Entomological Society. 
[Vol. VI. 
the apex, the shaft of the spine pale. Color whitish, no marks except a 
large brown cervical shield. Head pale, eye black, mouth brown. Skin 
smooth as usual. Length .8-1.2 mm. Duration of the stage seven days. 
Stage II .—Elongate elliptical, joint 3 truncate before, tail broadly 
square, scarcely notched at the sides. Dorsum and sides moderate, 
not distinctly concave, nearly flat. Subdorsal ridge segmentarily 
tubercular with large, low, round tubercles, bearing two short, blakc 
setae, alternating, the tubercles of joints 5, 7 and 9 a little tipped 
outward. Lateral ridge not tubercular, gently waved segmentarily. 
Both ridges broadly covered with nearly contiguous granules, produced 
with pale slender spines, several from a granule; on the apices of the 
tubercles and edge of the lateral ridge these spines are usually dark 
and distinctly seen, under a high power, to be arranged in the form 
of a radiating crown of 4 to 6 around an erect central spine (Plate XI, 
Fig. 5). Dorsal and lateral spaces centrally nearly smooth, the 
granules feebly developed. Depressed spaces indicated, slightly 
sunken, not fully differentiated and protected between the setose 
ridges. Color whitish, faintly tinged with green; dorsum darker 
from the food showing by transparency. Length, 1.2-1.9 mm - 
Stage III. —Elliptical, not much elongated, tail rounded, quad¬ 
rate, distinctly notched at the sides. Dorsum slightly, lateral space 
distinctly concave, subventral space very small and retracted. Sub¬ 
dorsal ridge prominent, segmentarily beaded tubercular. Both ridges 
with short, distinct black primary setae. Depressed spaces rather 
large and distinct, especially (1) and (4), the other small ones 
visible in a good light, none very sharply edged. Skin granules 
large on the tubercles, bearing a crown of minute black spines, losing 
these and grading off into smaller granules on the latticed ridges. 
The paler spines on these ridges may be seen in favorable lights to 
overhang the edges of the depressed spaces like minute fur. Lateral 
ridge weakly segmentarily waved with single setae at the projections. 
The latticed ridges are broad, several granules wide, the depressed 
spaces finely granular in the bottom. Color frosted whitish, opaque, 
no marks ; later all faintly bluish-green from the blood, still without 
marks; still later a narrow yellow subdorsal line appears in a series of 
dots on joints 4 to 10, free, or connected by a short bar on joint 8, 
either yellow or pinkish red. The brown rosette spines on the ridge 
give a shade along all the ridges and joining at the ends. Length, 
1.8-2.8 mm. 
