( xxvii ) 



injurious remains to be evidenced by prolonged series of 

 field observations extended over a lengthy period, and only 

 time will solve the problem. 



Mr. Poulton stated that he had last year noticed the 

 marking appear in one specimen of a brood of Smerinthus 

 he had, first as a linear mark, then become a spot, and 

 afterwards disappear ; and he laid stress upon this as 

 evidence of his theory, which Mr. White had not set forth 

 clearly. 



Mr. White, in replying, said he thought this case was so 

 very extraordinary, and differed so entirely from all previous 

 experience, that it required continued experiments to be 

 carried on to complete the observation. 



Mr. Waterhouse read "Descriptions of New Genera and 

 iSpecies of Buprestidce." 



June 1, 1887. 



Dr. David Sharp, M.B., F.Z.S., President, in the chair. 



Donations to the Library were announced, and thanks voted 

 to the respective donors. 



Exhibitions, Sc. 



Mr. Philip Crowley exhibited the following specimens of 

 Diurni, from the Kareen Hills, Burmah : — Papilio Zaleucus, 

 Hew., Papilio Adamsoni, Smith, Papilio ? sp. (male and female), 

 and Nymphalis Nicholii, Smith. 



Mr. T. Pi. Billups exhibited specimens of an exotic ant, 

 Tapinoma melanocephalus, For., taken by himself in September 

 last at the Palm House, Kew, on a species of palm (Howea 

 Griesbachia) from Tropical Australia : he remarked that the 

 species was first described by Forel from Cayenne, then from 

 the Tonga Islands, and lately from Bahia and St. Thomas ; 

 Forel also found it on board one of the West Indian Mail 

 steamers ; and it has also been met with in India and South 

 America, but has not hitherto been found in Europe. This 

 brings the number of exotic ants found in Kew Gardens by 

 Messrs. Smith, Saunders, and Billups, up to seven. 



