NERICE BIDENTATA 229 



laid with opaque white in oblique patches from the 

 dorsal line. It grew to a length of one and a quarter 

 inches, and was very pretty. When in position it 

 might well be taken for a part of a leaf, especially seen 

 from the under side. 



Before this we had learned that it was hidentata, and 

 we rejoiced in every day which left it thriving. 



Five days after the last molt the colors grew dull, 

 the humps began to diminish in prominence, and the 

 caterpillar emptied its intestine. The next day the 

 humps had shrunk to the level of the body-line, and 

 the caterpillar was moist and contracted. It spun a 

 few threads, fastening a leaf to the tin, and ten days 

 after the last molt the pupa cast the larva-skin. 



The pupa was not quite three quarters of an inch 

 long, was neither stout nor slender, and was dark 

 brown, darker on the head, thorax, wing-covers, anal 

 point, and bands between the abdominal segments. 

 The eye-covers were prominent and very smooth. The 

 abdominal segments were distinctly ridged on the 

 edge and pitted. The cremaster was long, slender, 

 and sharp. 



We were quite triumphant when the pupa was 

 finally found on the 8th of September, for it was such 

 a great chance whether or not we could rear the cater- 

 pillar and get its life-history. 



Its portrait is from a water-color drawing taken by 

 One of Us, and lithographed for Dr. Packard's " Mon- 

 ograph on the Borabycine Moths." 



The moth emerged the next June. It spreads about 

 an inch and a quarter, has the head and front of the 

 thorax bright brown, the rest of the thorax ash-gray. 



