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authorities of the Central Experiment Station at Nishigahara, near 

 Tokyo, to make additional sendings, and a little package was received 

 early in the spring of 1902 from the chief entomologist of the station, 

 Mr. Onuki. This material, however, came in a very bad condition, 

 and the few surviving beetles soon perished. 



The material shipped in the first instance by me was in three wooden 

 boxes, two sent through the mails and one personally carried across 

 the Pacific by Miss Laura Bell, whom I had met in Japan, and who 

 kindly promised to mail it to Washington as soon as she landed in 

 Vancouver. All of this material and the subsequent sendings also, so 

 far as 1 could control them, were mailed to take the Canadian Pacific 

 steamers to get the advantage of the northern and much cooler as well 

 as shorter passage. I am unable to determine, the record having been 

 lost, whether the specimens which overwintered were those personally 

 carried by Miss Bell or those sent through the mail. At any rate, but 

 two individuals survived. It is possible fchat with proper precautions 

 a much larger number could have been successfully hibernated, but 

 they were kept indoors, and for part of the time in heated rooms, and 

 the survival of two was, under the circumstances, a i-ather fortunate 

 outcome. Furthermore, many of the beetles were possibly spent ones 

 when collected. 



In April, after the eggs were recognized, the beetles and eggs were 

 transferred to and kept in a jar in the greenhouse on fresh scale- 

 infested twigs until larvae were produced in considerable numbers. 

 Undoubtedly a good many of the eggs first laid were overlooked 

 because of the peculiar habits of oviposition of the beetle, which seem 

 not to have been previously noted. Later on the eggs were dis- 

 covered and some 50 larvse were reared in this manner indoors. 

 Afterwards the beetles and the larvse were from time to time trans- 

 ferred to a big out-of-door cage, 6 feet square and 9 feet high, inclos- 

 ing a plum tree thickly infested with Diaspis pentagona. Ultimately 

 all of the indoor-bred larvse were transferred to this tree, about 100 

 altogether, and, judging from the rate of oviposition, at least 100 addi- 

 tional eggs were deposited on the tree by the parent beetle before the 

 latter perished. So far as we could determine, but one of the two sur- 

 viving beetles was a female, and 200 eggs or more were obtained from 

 her after a good many had been lost or thrown out with the wood on 

 which she had been feedmg before the eggs were recognized. 



The life period of these beetles is evidently considerable. The two 

 imported ones which survived the winter were active and vigorous 

 until about the end of May, when they perished, the supposed male 

 preceding the female by about a week or ten days. They, in other 

 words, had been kept in captivity for nearly a year, having been col- 

 lected early in September. This would indicate a life period of at 

 least twelve months, because they were necessarily more than a month 



