ready known to attack cane in other countries or some species 

 hitherto unknown as a pest, and in the latter event whence it 

 liad been imported. Obviously, if the species proved to be West 

 Indian we did not want to send to Java tO' look for natural 

 enemies. 



Such literature as was to be procured in the islands dealing 

 with leaf-hoppers injurious to cane I examined with great care, 

 and in a report written to Mr. Tenney of the Planters' Associa- 

 tion on October 23rd, 1902, I expressed my opinion that the Ha- 

 waiian pest "was certainly none of these," and reiterated this in 

 my report of Nov. 15th above mentioned. At the same time I 

 called attention to the similarity in habits between the pest here 

 and the Javanese species(Dicranotropis vastatri.v). Finally, after 

 much correspondence with other countries, the matter was con- 

 clusively settled for me by Mr. Kirkaldy, who obtained from Ger- 

 many cotypes of the Javanese insect described by Breddin and 

 found it to be quite distinct from the Hawaiian one. Other au- 

 thorities considered the Javanese insect and ours identical. 



■Meanwhile I was also corresponding with Australian entomolo- 

 gists in the hope of procuring specimens of a Queensland cane- 

 infesting leaf-hopper for comparison with ours; 1)ut it was not 

 till some six months after I began this correspondence that I had 

 the great satisfaction of receiving from Mr. James Clark of 

 Cairns, four specimens of this Queensland species, which proved 

 to be the same species as our own. Mr. Clark also informed me 

 that tliis leaf-hopper had been known there for years, that it was 

 their only species, that it did no noticeable damage and was prob- 

 ably kept in check by some efficient natural enemy. 



As I have mentioned in former reports the fact that leaf-hop- 

 per was present on cane in Queensland was discovered by me 

 when inspecting some seed-cane imported from that country, the 

 said seed-cane containing numerous eggs of a leaf-hopper, while 

 a few very young insects were also present. These not being 

 at a stage of development when their identity with our own species 



