BOSTON ZOOLOGICAL SOCIETY. 41 



September 10 I found some larva? on a pear tree, some with 

 Avhite and others with yellow tufts. September 13 I found 

 some more on an apple tree which varied in the same manner. 

 In all these the stripes along the sides were greenish-white. 



The larvae found on the rose-bush SeptendDer 2 all pro- 

 duced females. On September 20 and September 29, moths 

 hatched in the box some males and some females. Several 

 of the males reared, as well as those caught, w^ere much 

 lighter colored than the others and lacked the wdiite spot 

 on the wings. October 4 I found the pupa of a female, full 

 of eggs, on an apple tree, showing that the eggs w^ere de- 

 veloped very soon after pupating. October 4 some larvae 

 w^ere still feeding on apple trees. 



On May 19, 1879, the eggs, wdiich I had kept over winter, 

 hatched. The larvae were not so dark colored as those ob- 

 served in 1878. The eggs which were waited for w^ith the 

 greatest interest did not hatch. 



June 3 some larva? had yellow and others white tufts. 

 Those with white tufts had darker colored bodies and the 

 pencils of hair over their heads were shorter. I separated 

 the white tufted ones from the others, but on June 5 some 

 among the yellow tufted ones were found to have white 

 tufts, and their heads as well as the w^arts on their backs 

 were orang^e-color. On June 6 one of them moulted and 

 appeared with black tufts which presented a velvety appear- 

 ance. On June 7 some of the yellow-tufted ones moulted 

 and appeared with white tufts, and vice versa. On June 17 

 some of those first hatched pupated. On June 22 the larva 

 w^ith black tufts after moulting appeared w^ith whHe tufts 

 and pupated June 30. On July 6 and 7 some of the white 

 tufted larva? produced both male and female moths. There 

 are differences in the size and markings of moths of the 

 same brood. 



