154 Journal New York Entomological Society. [Vol. vi. 



ridge becomes pale, a large rounded quadrate reddish spot appears dor- 

 sally, covering joints 7 to 9 and reaches the subdorsal ridge ; as the 

 stage advances this becomes better defined, regularly elliptical, covering 

 joints 6 to 10 and reaching nearly half way down the lateral space. It 

 is bordered with yellow, this color extending also backward and forward 

 for some distance along the subdorsal ridge (Plate VIII, fig. 3). Length, 

 2.2 to 3.3 mm. 



Stage V. (Plate VIII, fig. 4). Shape as before. Skin surface the 

 same, but the granules on the latticed ridges are more numerous. Setse 

 obsolete, scarcely discernible except at the ends of the body. Color 

 green, dorsal patch elliptical, but now a little angled at the sides, a 

 slight point projected to the depressed space (4) of joints 6-7 and 9-10 

 and a more decided one reaching below the space (4) on joint 8. The 

 patch is rounded before and behind and contains a varying paler cen- 

 tral space, which may be so large as to reduce the patch to a red line 

 but is usually small and quadrate. Yellow border distinct, reaching 

 as a subdorsal line nearly to head and tail. Depressed spaces greenish. 

 Length, 3.5 to 4.7 mm. 



Stage VI (Plate VIII, fig. 5). Structure as in the mature larva and 

 as before. Color green, the depressed spaces concolorous. A large red 

 patch of varying shade covers the center of the back, more rounded out 

 and larger than before and enclosing six of depressed spaces (1). Its 

 outline is elliptical, a little irregular or notched on the sides, the furthest 

 lateral extension being on joint 8 where it reaches depressed space (5), 

 The patch does not reach either extremity, though a small detached 

 red spot may occur on joint 3. There is a more or less distinct central,, 

 square, pale blotch on joints 7, 8, sometimes large as before. A sin- 

 gle example found on hickory had the patch blackish chocolate, nar- 

 rowly bordered with red and yellow. Length, 4.7 to 6.7 mm. 



. Stage VII.— (Journ. N. Y. Ent. Soc, IV, pi. VI, figs. 5, 6, 7) 

 shape as described. Depressed spaces as in T. pallida (1. c. pi. VI, 

 f. 8). Latticed ridges coarsely clear granular, the depressed spaces 

 finely granular. Color green, depressed spaces pale with dark centers- 

 Dorsal mark reaching the extremities and lateral margins in the form of 

 a cross with four projections from the center which touch the depressed 

 spaces (4) of joints 6-7 and 9-10 (1. c. pi. VI, f. 6), or filled out to> 

 a larger diamond-shaped mark, produced narrowly forward to joint 3 

 (1. c. pi. VI, f. 7). It has a pale salmon-colored center, often square 

 and covering only one depressed space (joints 7-8) or rarely larger, 

 occasionally wanting. The patch is bordered with crimson and yellow 



