173 



Dirhinus giffardi. 



Oahu: 



Nuuauu 200 



Kaimuki 150 



Diachasma tryoni. 



Oahu: 



Nuuanu 250 250 



Kaimuki 100 100 



Tetrastichus giffardianus. 

 Oahu: 



Nuuanu 1400 



Kaimuki 1200 



Galesus silvestri. 



Oahu: 



Nuuanu 300 



Kaimuki 100 



DUNG FLY PAEASITE. 



Spalangla cameroni. 

 Hawaii: 



Keaau 500 



The Entomologist returned to the Island of Hawaii on the 22nd of the 

 month to inspect the fern weevil eradication work at 29 Miles, Olaa. A 

 careful examination of the ferns on the boundary of the infested ar«a 

 was made in company with Mr, Swezey, Chief Entomologist of the H. S. 

 P. A., and on finding stragglers occupying two sections of the borders 

 (Tom Cook and Carlsmith lots), the fern growth at these points was 

 cleared to a depth of thirty-five to fifty feet, burned, and the ground 

 scarified and sprayed with arsenite of soda. This work occupied two 

 weeks. While it was progressing the entomologist personally applied 

 the sodium arsenite spray to all ferns that could be found in the koa 

 park, Deyo and Bowman lots and on the lava tube section of the Shipman 

 property. The Kennedy and Shipman pastures were also gone over and 

 the ferns on them hand-picked as far as possible. The weevils could not 

 be found anywhere on the borders of the infested area, except as above 

 noted, and on the interior area surprisingly few ferns could be found in 

 the koa park or Kennedy pasture and no weevil was detected in the 

 latter. There were still some ferns and weevils in the Shipman pasture 

 and Mr. English has been notified to hand pick these ferns more thor- 

 oughly. Weevils were found in the lava tubes, but no indication of 

 spreading was observed. They were also found in the back of the Deyo 

 and Bowman lots, but the spraying and burning which will be done there 

 will probably check them completely. Mr. English had practically com- 

 pleted the burning of the fern stumps piled on his property when the 

 entomologist returned to Honolulu on May 10th, and has been requested 

 to do as much spraying as possible on his lot to destroy the stragglers. 

 Orders were also left with a Japanese workman in the neighborhood to 

 continue spraying if it was found necessary in order to destroy all neg- 

 lected or sprouting ferns throughout the month of May. This work 

 is to be done under the supervision of Mr. Mackenzie. 



Eespectfully submitted, 



D. T. FULLAWAY, 



Entomologist. 



