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eleven egg batches. These egg batches were found attached to 

 the koa leaves in single layered masses consisting of from 

 seven to fifty-two eggs (PI. 8, Fig. 4.) In every instance under 

 examination, whether in capticitj in jars or under a net on 

 selected branches of the living tree itself, it was found that 

 the female concealed her egg batch by covering it with an 

 adjoining leaf or some portion thereof. To attain this pur- 

 pose, the female deposits a quantity of mucous around the 

 margin of the egg batch to which the protecting leaf adheres. 

 (PI. 3, Fig. 3) . My observations during the above period show that 

 the time necessary for the hatching of the eggs averaged in 

 these instances about thirteen days from the date of their 

 oviposition. The larvae hatched out from all these eggs have 

 been deposited in soil and roots in glass jars for future obser- 

 vation. 



The scarcity of the beetle led me to make an effort to find a 

 possible parasite and in consequence the adoption of another 

 method of experimenting was undertaken. Having selected a 

 suitable koa tree, I placed over one of its smaller branches a 

 net bag within which were deposited the remaining beetles 

 from the jar, adding several others taken by me subsequently. 

 Whether owing to the ovipositing period having nearly ceased 

 or for other unknown reasons, I found a marked decrease of 

 egg production in spite of the addition of several females to 

 the colony. During a period of seventy-seven days only 

 twenty-one batches were found, as against forty-five in the 

 sixty days previously noted. Periodic visits were made every 

 tenth or twelfth day to the tree, transferring both net and 

 beetles to a new branch on every visit, at which time the egg 

 batches were counted and recorded, but left exposed for any 

 attack of parasites during the ensuing ten or twelve days. The 

 hatching period in these instances averaged sixteen days from 

 the date of oviposition, or an ave^-age of about six days after 

 cutting away the egg batches from the branch. 



At the close of the experiments above referred to, ten live 

 beetles, (six males and four females) were taken from the net 

 and placed in a small glass jar to further determine the time 

 necessary for the hatching of such eggs as might be oviposited. 

 Eight batches in all were taken from the jar within forty-eight 

 hours of the confinement of the colony. The leaf concealing 

 each batch was carefully withdrawn and the eggs in each 

 counted. The total oviposition by these four females during 

 the forty-eight hours was found to be two hundred and thirty 



