336 JOURNAL OF ECONOMIC ENTOMOLOGY [Vol. 4 



female was fertilized twice, the day she was introduced and the 

 succeeding day. The time between the fertilization and the oviposition 

 varied between wide limits. In some cases the females oviposited 

 within a few minutes of fertilization, and again the interval was over 

 twenty-four hours. 



During oviposition, the female arched the center of her abdomen 

 upward, the tip pointing downward and extended the ovipositor. 

 Then she began to swing her abdomen gently, from side to side, occa- 

 sionally pausing to touch her ovipositor to the leaf. Each egg was 

 deposited singly and glued to the leaf by a secretion placed on the 

 leaf before delivery of the egg. The eggs are brown, regularly oval, 

 and average .823 mm. x .542 mm. The micropyle end is heavily 

 indented. The shell is net-veined. Plate 11 Fig. 3 shows the eggs, 

 almost natural size, on the leaf. The greatest number of eggs de- 

 posited by one moth was 161. The greatest number in one place 147. 

 Of all eggs deposited 390 were placed on the leaves and 65 on the trunk. 

 The shortest period of incubation was 10 days; the longest 16 1-2 days 

 (in September) and the average 13 days. All larvae emerged from the 

 micropyle end cutting it away in small sawdust-like particles. 



Emergence of a Moth 



On entering the insectary at 8.30 a. m., July 21, one pupa, collected 

 on July 20 was found half above ground in the flower pot in which 

 it had been placed. Taken into the sunlight at 9 a. m. it began, aft er 

 a few min/utes, to twist on the tip of its abdomen as a pivot until about 

 three fourths above ground. After a short rest the insect began push- 

 ing upwards by successive contractions and expansions of the abdom- 

 inal segments until the pupa case split along the back a short distance 

 and down the front between the wing and antennal cases. Continuing 

 the motion the insect gradually withdrew its body. The antennal and 

 proboscis cases split on their inner side, i. e., the side next to the body. 



The adult proved to be a male. It rested on a lump of dirt with 

 wings against its sides for several minutes. Wings were then opaque. 

 He gradually arched the anterior wings, separating them from the 

 posterior pair. After having separated them he lowered the anterior 

 pair until in contact with the posterior wings and then raised both 

 sets until their upper surface touched above the back. They were 

 held in this position about five minutes, the opaqueness gradually 

 clearing and the veins becoming outlined with yellow. After five 

 minutes the wings were lowered to the body with the costal margin of 

 the anterior wing at about 45° to the body, in a horizontal plane. 

 After about ten minutes in this position the moth was ready for flight. 



