64 Journal New York Entomological Society. [Voi.vii. 



as the laterals (except on joints 3 and 4) have essentially the same 

 structure, but are smaller and the setas are partly reduced or degen- 

 erate, three setce of equal length, with very rudimentary ones around 

 the bases of these. The subdorsal row stand nearly erect, the lateral 

 ones are horizontal. Color whitish, a faint, more opaque yellowish 

 tint centrally on joints 6 to 9. Length i.i mm. The larva does 

 not feed. 



Stage II. As in stage II of Sisy rosea textiila; dorsal space not 

 rounded at joint 3, even, subdorsal horns nearly erect. There are 7 

 to 10 spines on a horn, the apical one not setiferous. Segmental in- 

 cisures rather well marked. No depressed spaces, the skin pitted- 

 shagreened, finely reticulate, the lines catching the light under a high 

 power. Color greenish white, immaculate. Length, i.i to 1.8 mm. 



Stage III. As in the next stage, but without color. Horns sub- 

 equal, the subdorsals a little longer than the laterals, the subdorsal of 

 joint 13 rather large and directed backward; lower spines of lateral 

 horns bulbous and setiferous, the rest stinging spines, black tipped. 

 Skin finely reticulate, granular, irregular, without definite form to the 

 sculpturing. All pale green, a square, yellowish patch centrally, seen 

 by transparency. Length, 1.8-2.8 mm. In seven-stage larvae the 

 length reaches 3.9 mm. 



Stage IV. Elliptical, rather square before and behind ; dorsal 

 space moderate, lateral space a little broader, subventral space re- 

 tracted, small. Horns normal in number (subdorsals on 3 to 13, lat- 

 erals 3, 4, 6 to 12) short, rather thick, all alike, forming a regular 

 ellipse from side view, the subdorsals of joints 3, 4, 5 and 13 and lat- 

 erals of 3 and 4 a trifle stouter than the others. Each horn has about 

 15 black-tipped spines arising from conical bases. Color green, a 

 faint yellow subdorsal line on joints 3 to 13, the pair parallel, a nar- 

 row broken yellow dorsal line ; addorsal spaces appear as white dots 

 and a larger yellow dot on joint 9 anteriorly. Horns concolorous ex- 

 cept the subdorsals of joints 3 to 5, which are bright red, especially 

 4 and 5 (Plate I, fig. 4). Skin densely flat or concave-granular, 

 shagreened, the joining of the obscure granules appearing like a fine 

 reticulum. Depressed spaces (i) and (2) represented by pale dots, 

 (4) as slight hollows without difi"erentiation of the surface. At end 

 of stage a yellow bridge joins spaces (i) on joint 9. Length, 2.8 to 

 3.9 mm. 



Stage V. Essentially as before. The subdorsal horns of 3, 4, 5 



