66 Journal New York Emtomological Societv. [Voi. vii. 



between the horns of joint 4 enclosing a double pale waved line of 

 nine loops around the paired dorsal dots, much as in the next 

 stage (Plate I, fig. 6); a tiny single dot between the pairs of (i). Be- 

 tween the horns of joints 3 and 4 are six dots ; a bar before the last 

 pair. On the sides the white dots (4) and (6) are in large reniform 

 pigmentless areas with a whitish bordering line. Horns all red tipped, 

 the former red ones the brightest. Spines black and white, some 

 banded, darkest on the largest horns. Skin very finely subconic, or 

 pointed granular, not shagreened except slightly at the bases of the 

 subdorsal horns above. No caltropes, but the spines of the later a 

 horns are short and dense at base. Length, 9- 3-1 3- 5 mm. 



StOi^e VIII. Shape as described, the side horns suddenly shortened 

 to less than half their former length. They are now shorter than the 

 subdorsals which become contractile on joints 4 to 1 2 and are bent 

 outward, appressed to the sides. Subdorsal horns of 3 and lateral of 

 3 and 4 are small and short, the laterals of 6 to 1 2 green, broad and 

 low, not as long as wide, with only a few short spines and some 

 clubbed ones on the lower outer side. Subdorsals of joints 5 to 1 2 

 red, forming round cushions not as long as wide, bearing a tuft of 

 banded or black-tipped spines at the apex ; on joint 13 longer and 

 tapering, pinkish red. Body green, well pigmented, apparently uni- 

 formly in both bars and spaces down to and surrounding the lateral 

 horns. Depressed spaces (i), (2), (4) and (6) and the pattern 

 of lines more distinct than before, pale whitish, the subdorsal line 

 narrow, concolorous and uniform with the other lines (Plate I, fig. 6). 



Depressed space (i) forms a long curved slit instead of paired 

 dots as before, and there is a pale dot behind it. Skin nearly contin- 

 uously conic, clear granular, horns, depressed spaces and all, the green 

 pigment situated in the bases of the granules just as the red is in Eiulea 

 itidetermhia, absent in the light markings which are colored only by 

 the blood. Spines with sharp black tip, shaft white, often banded, the 

 degenerated ones clubbed (Plate I, fig. 9); some at the bases of the 

 horns are very small. (Plate I, fig. 2.) Length, 13.5 to 18.3 mm. 

 The color for pupation is only a slight paling. The larva still rests 

 on the leaf for twenty -one hours, the horns dull red, erected. Finally 

 it voids a little clear fluid and enters the ground to spin. 



Cocoon. With the characters of the group, but thin, less firm in 

 texture than usual and more blackish in color. 



Food plants. Black oak, hickory, chestnut, beech and ironwood. 



