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From this, it is seen that egg masses were produced at inter- 

 vals of 2 to 9 days, or an average of 5 days. The eggs hatched 

 in 8 to 10 days. 



The nymphs molt 5 times including the final change to matur- 

 ity. The following is the record of one lot bred in insectary : 



The nymphs are more or less sticky in all stages. The abdo- 

 men is rather ovate in shape and somewhat flattened above ; in 

 the younger stages it is much tilted up behind. Eyes red ; legs 

 white, ringed and spotted with black ; stages i and 2 have black 

 spines at tip of abdomen. 3, 4 and 5 have the spines also on 

 the sides of the abdominal segments, increasing in size from be- 

 fore backwards. Full grown nymph is of a light bluish green 

 color, with some reddish yellow markings on dorsum, seg- 

 nientally arranged. (PL XVI, fig. 3.) 



One female from the above lot (matured July 7th) deposited 

 an egg-mass of 45 eggs July 23rd ; or about two weeks after 

 reaching maturity. This gives a period of 55 days from laying 

 of eggs till the young have matured and themselves laying eggs, 

 or abotit 2 months, which would give 6 broods per year, provid- 

 ing their development was as rapid at all times of the year. 

 Probably their development would not be so rapid during the 

 cooler months of the year — November to March, 



Rednviohis blackbnnii. White.* (Plate XVIII, figs. 1-4.) 



This pale, gravish colored native bug is generally distributed 

 throughout the sugar cane districts. Adults and nymphs prey 

 upon cane-aphis and young leaf-hoppers. 



* " Heniiptera," Fauna Hawaiiensis, III, pt. II, p. 155, 1002. 



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