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 ir conspicuously pale. Length 4.4 

 to 6.2 mm. 



Stage VI. — Horns rounded, small, the subdorsals on joints 11 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 four salmon lines ; a conspicuous pinkish line along 

 subventral edge, bordered above by crimson and brown. Horns all dark 

 except the subdorsals on joints 11 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 sthnidea. 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 

 (i) 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 1 1 and 1 2 

 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 bayberry. 



