Il8 ENTOMOLOGICAL NEWS. [October, 



up the life-history of this species, so I will only add that the larva 

 vary from a maroon-brown to a light green, are very domestic in 

 their habits and extremely interesting. Darapsa chhvrilns dif- 

 fers from the foregoing in depositing its eggs. They are some- 

 times laid singly and sometimes en-masse, I once found twenty- 

 two in a cluster on the Azalea {Azalea nudiflord). 



Smerinthus myops varies principally in the number and color 

 of the sub-dorsal spots; some have eight, four on each side, some 

 six, more often four, and not unfrequently two, and one specimen, 

 a regular unique, had but one spot, and that was situated on the 

 right side of third segment. But the climax of all was a brood 

 of nine I raised two years ago, which were destitute of spots. I 

 examined them very carefully, and not a vestige of a spot could 

 be seen. These immaculate specimens were light green without 

 the bluish tinge characteristic of most of them. The diagonal 

 lateral lines were very indistinct. When this unique group came 

 out winged flies I found the sexes about equally divided, and was 

 in hopes to get a pairing and thereby ascertain whether the larva 

 would inherit the characteristics of their progenitors, but I failed. 

 Another characteristic of all I have bred so far is the spots were 

 cardinal or shumach-red, instead of rust-red. 



In most cases the larvae of a species varies far more than the 

 imago, but in Smerinthus geminatus the reverse seems to be the 

 order of things, and no doubt the food-plant has something to 

 do with it; the eggs are found on willow and on poplar. The 

 eggs found on poplar are larger than those found on willow; the 

 imago is proportionally larger, the shading much deeper, and on 

 the whole a much finer insect than the willow feeders. 



Many more instances of marked varieties might be mentioned, 

 but this paper is now longer than was at first intended, and I will 

 close by a few remarks on the larva of Smerinthns astyhis. Last 

 Summer, after four hours' search on the high bush huckleberry 

 ( Vaccinium corymbosum) I found a young worm, half an inch long, 

 of a bright green color. It moulted three times, but supposing 

 the species had been described, I did not make a description of 

 it till after the last moult, which runs as follows: 



Larva bright green, 2^ inch, long, 3/g inch, diameter, uniform 

 in size, with seven, oblique, lateral, red lines, margined with yellow 

 on the under side; caudal horn black, base greenish yellow, nearly 

 straight and smooth. Head with a pea-green stripe on the side; 

 under side below the stigmatal spots sea-green, thickly studded 



