History of tie Occurrence of the Siigar-Cane 

 Leaf-Hopper* in Hawaii. 



I. In the latter half of the year 1900 I first ohsen'ed and col- 

 lected specimens of the leaf-hopper of the cane, but it was not 

 until the end of 190 1 or the early part of 1902, that it came under 

 my notice as doing quite serious damage locally on Oahu, and still 

 some months later when its ravages were reported as being more 

 extensive and it was submitted from one of the other islands — 

 namely, Kauai. 



Tn my report written on Nov. 15th, 1902, I remarked: "This 

 small insect is highly injurious to cane and its destructiveness 

 threatens to exceed that of the cane-borer" — a statement, as the 

 secjuel proves, by no means exaggerated. 



As for various reasons it was not possible for me at that time 

 personally to visit the windward islands, during Mr. Koebele's 

 absence from the Territory, I strongly advised that precautions 

 should be taken to keep the pest from being carried thither in 

 seed or other cane, on the supposition, or rather in the hope, that 

 it had not already become established there. 



Not long afterwards, however, I learnt that it was already 

 strongly established both on Maui and the Northern parts of Ha- 

 waii, and that any precautions against its introduction were there- 

 fore unnecessary. 



From that time to the present, samples of cane attacked by the 

 leaf-liopper have been brought to me for examination constantly 

 from all the sugar-growing islands and most districts of these 

 islands, as well as many insects or other creatures supposed 

 (risjhtlv or wronelv) to be attacking these. 



For description see Appendix (note IV.) 



