4 Journal New York Entomological Society. ivoi. v. 



subdorsal ridge, one on lateral ridge of abdomen (Plate I, Fig. 4), a 

 secondary setse above the spiracle and the two of subventral row below 

 it. Upper setse long, stiff, black at apex. Skin with sparse granules 

 produced into slender spines, longest and most numerous along the 

 ridges at the bases of the setae ; a few distinct spines in the dorsal space, 

 but in the lateral area mostly fine granulations only. Color translucent 

 pale greenish, no pigment. Segments well marked. Length i to 1.6 mm. 



Stage III. — Body moderately elongated, elliptical, more elongated 

 than T. pallida. Skin very finely granular, frosted under a half-inch 

 objective, which hardly resolves the fine granules ; conical, clear, pointed 

 tubercles, much larger than the granules, are distributed in a single row 

 along the low, rounded latticed ridges, becoming pale secondary spines 

 on the tubercles. Tubercles low and rounded, the subdorsal ones with 

 two, lateral with one large, dark, stiff setae. Ridges prominent, normal. 

 Color pale green, alimentary canal dark. Toward the end of the stage 

 a faint yellow line appears along the subdorsal ridge and yellow dots in 

 the dorsal depressed spaces (i); all the depressed spaces faintly shown. 

 Length 1.5 to 2.6 mm. 



Stage IV. — Ridges well marked, tubercular, setae black. Tail 

 quadrate, composed of the last abdominal segment. Depressed spaces 

 as in T. pallida, but ill defined, the separating latticed ridges obscure. 

 Skin finely granular, the larger spinose granules few in number except 

 on the ridges. Color light green, dorsum dark, translucent. A narrow 

 yellow line below the subdorsal ridge, a series of yellowish dorsal rings 

 in the depressed spaces (i), seven of them distinct; a row of lateral 

 whitish spots (4). Length 2.5 to 4 mm. 



Stage V. — Elliptical, tail quadrate, dorsal space moderate, lateral 

 broad, oblique, subventral small, retracted. Ridges only slightly tuber- 

 cular. Latticed ridges low, with both coarse and fine granules as be- 

 fore, the former becoming pale spines on the ridges, especially the lateral 

 one (Plate I, Fig 5). Color yellowish green, a narrow, wavy, yellow, 

 subdorsal line; yellow rings in depressed spaces (i), two yellow dashes 

 in (4), separated by a green spot ; the other depressions show as yellow 

 dots. There may be a distinct dark green spot between spaces (i) and 

 (2) in certain larvae. Length 3.5 to 6.7 mm. 



Stage VI. — (Plate I, Figs. 2 and 3.) Ridges slightly tubercular with 

 distinct black setae, but without secondary spines ; shape elliptical, the 

 tail quadrate as in the mature larva. Skin confused granular, the gran- 

 ules resulting from the two kinds of the former stage, alike now except 

 in size, somewhat flattened in the dorsal space and irregular. Yellow- 



