-US [November 



Sept. 12. The half-dead Antiphola was now completely dkad. 



Sept. 1.3. Shifted. Found no Antiphola either dead or alive. Two must have 

 escaped. 



Breeding-cage No. 6. Food-plant sycamore. There was no earth at the bot- 

 tom of this cage, and only two or three peaceable larvae in it on Sept. 13. 



Sept. 1.3. Placed in it one Antiphola captured on the oak. 



Sept. 14. Added three lively Antiphola captured on the oak, one less than 

 i-grown and two |-grown. The one placed there Sept. 13 was still in the cage. 



Sept. 15. Shifted. Found three Antiphola. including the small one. One of 

 the larger ones had disappeared. 



Sept. 17. Shifted. Found three Antiphola. including the small one. which 

 was dull and sluggish. 



Sept. 19. Shifted. One of the larger Antiphola had moulted and was slug- 

 gish, the other one was lively. The small one was dead. 



Sept. 21. Shifted. One of the two remaining Antiphola was half-dead, the 

 other one was dead. 



Sept. 22. The half-dead Antiphola was quite dead. 



Breeding-cage No. 3. Food-plant oak. There were 2 or 3 inches of earth at 

 the bottom of this cage, and about a dozen larvie. besides te.'ssellaris, were placed 

 in it from time to time in the forepart of September. 



Aug. 31. Placed in it three to.se//a?-is captured on the sycamore, two i-grown 

 and one f-grown. They were lively, but their pencils had been badly muti- 

 lated in the handling. 



Sept. 4. Shifted. All three te.^sellaris had the white tufts on their bodies 

 changed to a decided dirty-white, as in some varieties* of Antiphola. Their 

 heads were still rufous, and what remained of their pencils was orange and 

 continued so to the last. The large one was vigorous, the two small ones very 

 dull and sluggish. 



Sept. 6. Noticed one tessellaris dead in the cage. 



Sept. 9. Shifted. Found one tessellaris dead; the other one had disappeared 

 and was nowhere to be found. 



It thus appears that out of 13 oak and elm feeding Antiphola com- 

 pelled to feed on sycamore leaves, no less than 7 died in from 3 to 7 or 

 possibly 10 days, and 6 either escaped, or were eaten by other larvae, 

 or possibly might have been thrown out by an oversight in shifting. 

 A.S they were all well tended and carefully handled, the inference is 

 unavoidable, that Antiphola, though it naturally feeds upon a great 

 variety of trees, cannot as a general rule be brought to feed upon syca- 

 more without suffering death in consequence, and therefore that it is 

 not a mere Phytophagic Variety of tessellaris. In no one instance 

 could I perceive that any of these Antiphola approximated in the color 

 of their tufts towards tessellaris^ or that their black pencils approxi- 

 mated in the least degree towards the orange pencils of tessellaris. It 



