X'ol. xxiv] ENTOMOLOGICAL NEWS 20I 



On the same day, ]\Iay 23d, eggs of Smerinthus ophthalmi- 

 cus, received from Mr. E. A. Dodge, of Santa Cruz. Califor- 

 nia, hatched. The young larvae were white with large, green- 

 ish heads and strong brown caudal horns, curv-ed backward. 

 The eggs were small, and often with red rims, as in ova of 

 S'Yn. geminatus. uiyops,_jnodesta and excaecatus. In fact. 

 ophthalmicus eggs are hardly distinguishable from those of 

 excaecatus in size and shape. 



May 29th. Larvae of Smerinthus ophthalmicus, hatched on the 23rd. 

 moulted for the first time on the 27th. After the first moult the 

 "worm" is light green with a light, almost white lateral line. Head 

 pointed above. Caudal horn strong, directed backward, yellow green 

 with a rich red brown line at the base. The horn nearly half an inch 

 long. 



June 2nd. Larva after second moult, three-fourths of an inch long, 

 light green with light toothed lines. Caudal horn light with faint vio- 

 let at the base. Head, triangular. Much like excaecatus. 



The larvae moulted the third time on June "th. After the third 

 moult, the larvae are one and one-fourth inches long, dark green with 

 pale yellow, toothed sphingial bands or lines. Small pale yellow gran- 

 ules cover the bod}-. The head is blunt triangular, hardly sharp at the 

 apex, dark green with strong yellow facial lines (one to each side). 

 The last sphingial band extends to the base of the caudal horn and is 

 stronger and yellower than the other bands, except the facial bands. 

 The caudal horn rather strong, medium length, directed backward and 

 but little curved. The horn is rosy on the sides and behind nearly to 

 the apex where it is yellow green. The front side of the horn is blue. 

 The true legs are rosy with green bases. The prolegs are of the body 

 color. The caudal shield has a yellow edge. 



On June i6th the larvae were two and one-fourth to two and one- 

 half inches long, yellow-green with lighter granules. Longitudinal lines 

 that bound the dorsum and the sphingial bands are pale white or yel- 

 lowish. The last sphingial band extends from the middle of the sixth 

 segment to the base of the caudal horn and is strong and yellow. The 

 head is triangular, rather sharp and bluish in front with lateral yellow 

 band. The true legs are pale red. The caudal horn nearly straight, 

 directed backward, blue in front and violet behind. Spiracles small, 

 elliptical, almost black with yellow centers. 



The first larva of 6". ophthalmicus burrowed on June i6th. 

 On the same date the S»uvinthus geuiiuatus larvae began 

 burrowing. 



The mature larva of Sm. ophthalmicus burrows about as 

 deeply as that of excaecatus and the chrysalis is about the 



