February, 1914 BulUtin of the Bwol^lyn EntoTTiological Socicfy 3 



deposit them in captivity or if eggs were deposited they suffered 

 the fate described by Needham. Those which were finally secured 

 were laid at night, and if this is the normal habit there is usually 

 ample opportunity for the eggs to be devoured in the breeding 

 cages before morning. The cannibalistic propensity of these 

 insects was very evident, and examination of the cages often 

 showed one or two large females and nothing but fragments of 

 wings and legs of the other individuals which were put into the 

 cage the night before. The same was likewise true of the cage 

 in which the writer finally secured a number of eggs, but by good 

 fortune the females evidently began devouring each other before 

 eating the eggs. 



The eggs were laid singly and scattered irregularly about 

 on the glass bottom of the breeding cage. There was no evidence 

 that the females attempted to seal the eggs to the supporting 

 surface. No data was secured on the number of eggs deposited 

 by a single female. The eggs are ovoid, chalk-white, and very 

 finely granular in surface view, agreeing with the description 

 given by Needham. This minutely granular appearance is not 

 at all distinct, but requires high magnification to make it apparent. 

 Measurements showed the eggs to be quite constant in size, the 

 length varying only from 0.92 to 0.94 mm. and the width from 

 0.46 to 0.54 mm. The outer egg membrane is smooth and free 

 from irregularities. 



As the time of hatching approached the eggs changed color, 

 gradually assuming a greenish hue which ultimately developed 

 into a distinct green color a short time previous to the emergence 

 of the larvce. Eggs which were deposited August 1st hatched 

 August 15th, thus making an egg period of fifteen days. All of 

 the eggs under observation developed at the same rate and all 

 hatched within a few hours of each other. 



The Larva. (PI. 0, Fig. 1). As mentioned above, the failure 

 to discover the food and food habits of the larva made the study 

 of the later stages impossible and the following description per- 

 tains only to sta,ge 1. 



The larva as a whole is somewhat brownish in appearace. 

 With the exception of the two black eye spots, the head is of a 

 dark yellowish color. The thorax is uniformly light brown, and 

 the legs are translucent. The abdomen is brown,, showing more 



