June, 1897.] Dyar: Life-Histories of N. Y. Slug Caterpillars. 65 
other horns obscure. A broken, double, waved, pale addorsal line. 
Depressed spaces very obscure. Skin sparsely, very finely granular. 
Horns moderate, with slender, black-tipped spines. The anterior end 
of the larva is darkly colored, joint n conspicuously pale. Length 4.4 
to 6.2 mm. 
Stage VI —Horns rounded, small, the subdorsals on joints n to 13 
pinkish white, the rest brown, concolorous; proportions as before, tail 
cleft. Body dark-brown dorsally, and on the upper half of the sides, 
marked with paler as before; the lines on the ridge and the bridges 
rather faint. Central dorsal and waved addorsal faint, broken white 
lines. Horns all spined, but the spines on joints 4 and 5 point inward, 
not erected. Length 5.9 to 8.5 mm. 
Stage VII. (Plate IV, fig. 9, ventral view). Fleshy brown; dorsal 
and waved addorsal broken, segmentary, salmon marks; thorax and 
subventral edge shaded darker; subdorsal horns of 11 light. Horns 
short, rounded; tail slightly cleft, spiny. Dorsal paired dark dots (ij 
joined by a whitish band; (4) oval, dark, narrow holes low down on the 
sides. A narrow salmon line along the subdorsal ridge edged with dark 
above; sides with tour salmon lines; a conspicuous pinkish line along 
subventral edge, bordered above by crimson and brown. Horns all dark 
except the subdorsals on joints 1 r to 13 ; the long ones form rather large 
buttons. The shape is like the mature larva. Length 7.5 to 13 
mm. 
Stage VIII —Tail pointed, spinose sometimes still cleft. Caltropes 
present (Plate IV, figs. 13 and 16) on the lateral horns of joints 6 to 12 
in a large patch, the caltropes themselves with larger side spines than 
usual. Skin finely, rather densely spinulated (Plate IV, figs. 10, 13 and 
14), much as in Sibine stimulea. Color without dark shades, the ground 
a sordid greenish marked with the numerous waved salmon-colored lines 
(Plate IV, figs. 3, 4 and 5), brighter posteriorly. There are five in the 
dorsal space, five in the lateral space, all somewhat confused. A narrow 
blackish line on subdorsal ridge, none on the lateral one. Subventral 
edge broadly pink, edged above by a dark red line. Depressed spaces 
(1) small, paired; (4) narrow elongate; (7), round, pit-like; (8) in¬ 
dicated, all blackish—no others. Horns short, the large ones with the 
spines turned in (Plate IV, fig. 11) dark, those on joints 11 and 12 
whitish, contrasting. Shape as described above. In some examples the 
posterior portion of dorsal space is of a very bright, fiery color. Length 
10.6 to 20.3 mm. 
Food-plants —Oak, chestnut, wild cherry, hickory and bay berry. 
