178 



The sting also is not torn from the body of the insect and h^ft 

 in the wonnd when the ant is brnshed off, as the case of the bee. 



While dissecting- one of the ants, by mistake I broke the 

 poison sack, wherenpon a yellowish liquid ran out n])on the 

 paratln which innnediately melted, as if a match had Ix'cn ap- 

 plied to it. 



All forms but the male have a sting. I have been unable 

 to find any resemblance to a sting in the male, although there 

 are two organs resembling the palpi of the workers. 



The paper was discussed at length. Mr. Ehrhorn made a 

 few^ remarks on his observation with poisons for killing ants. 

 He was particularly struck with the efficiency of Cyanide of 

 Potassium finely ground and scattered about the exit holes of 

 ^Solenopsis geminain. He reported that after disturbing the 

 nest l)y stamping the ground it would only take about five min- 

 utes until the bulk of the crawling ants would succund) to the 

 fumes of the Cyanide. His observations on Pheidole megace- 

 phala made him think that species did not succumb as easily, 

 although the fumes would kill great numbers. Mr. Ehrhorn 

 thought tliat Cyanide could be used to great advantage and that 

 would in a measure supplant Carbon bisulphide, which is ex- 

 ])ensive and dangerous to handle. He mentioned that experi- 

 ments with sprays of Cyanide and water had given good results 

 used at the rate of 1 oz. to 1 gallon of water. 



Mr. Eullaway said that the Pineapple growers could no 

 doubt be greatly relieved from the Mealy Imgs if they would go 

 after ants. 



Dr. Perkins made some remarks on Termites. ^Fr. Giffard 

 asked if anybody could give a remedy for the work of Termites. 

 Dr. Perkins recommended powdered arsenic. 



Mr. Terry exhil)ited a sample of Chinese inlaid feather work 

 representing an insect. The feathers were of a sniaP King- 

 fisher. 



Dr. Perkins gave a general account of Rev. Thomas Black- 

 burn's old collection of Hawaiian insects, of which he had re- 

 cently become possessed. 



]\[r. Terry exhibited the ])U])a of a Japanese beetle Adorelus 

 ienuimaculatuf< in its split larval skin. He gave the incubat- 

 ing period as four days and the larval period seventy-seven days. 



