164 THE CANADIAN ENTOMOLOGIST. 



color of back of head and of the triangle over mandibles deep green, the 

 rest of the front and the processes on vertices red-brown, with two green 

 patches on front, one on either side the suture ; ocelli emerald-green. 

 But some larvae have the head wholly green, the vertex process reddish ; 

 one had a brown band across the forehead, the rest green ; one had the 

 front face except the triangle brown, the cheeks green. To next moult 

 about 9 days. 



After 2nd moult. — Length .3 inch; shape as before; color yellow- 

 green ; stripes as before ; head as at second stage, sometimes wholly 

 green, sometimes partly brown ; one example had the left cheek brown, 

 the other green. To next moult about 7 days. 



After 3rd moult. — Length .7 inch ; very slender, yellow-green. In all 

 examples bred by myself this was the closing larval stage. 



Mature Larva.- — Length i.i to 1.3 inch ; slender, thickest in middle 

 segments, the dorsum well arched, and the slope equal either way to 2 and 

 12; segments 3 and 4 are creased, and divided into five rounded and 

 nearly equal ridges ; after this, there are six ridges, the front one broader 

 than any other and flattened, the rest being somewhat rounded ; 13 ends 

 in two small tapering divergent tails ; color of body yellow-green ; surface 

 thickly covered with small sharp tubercles placed irregularly, but most 

 dense in certain longitudinal lines, one such on either side of the medio- 

 dorsal dark stripe ; one sub-dorsal from head to end of tail ; two on the 

 side, and one, more conspicuous, along base, ten lines in all ; tails red- 

 dish ; under side, feet and legs, green; spiracles buff; head obovoid, 

 truncated, the top depressed ; on each vertex a little conical process, red- 

 dish ; surface rough with fine green tuberculations, among which are a few 

 whitish ones, each with short white bristle ; ocelli emerald-green in brown 

 rings. Duration of this stage about 13 days. 



Chrysalis. — Length, ^ .48 inch ; greatest breadth at mesonotum 

 and also at abdomen, .18 inch; i^! (probably) .54 inch, breadth .20; 

 cylindrical, the abdomen stout, conical ; the wing cases a little raised on 

 dorsal side ; head case very short, scarcely projecting beyond mesonotum, 

 bevelled transversely to a sharp edge, roundly excavated on either side, the 

 top very little incurved ; mesonotum rounded, carinated, the sides nearly 

 flat or a little excavated ; color green, the edges of carina, wing cases and 

 top of head case cream-color ; surface much covered with points and 

 small patches of whitish, not distinct enough to detract from the general 

 green hue. Duration of this stage about 10 days. 



