Hynienoptera. 1 59 



Ordinary Meeting, April 17th, 1888. 



Professor OsBORNE REYNOLDS, LL.D., F.R.S., in the 



Chair. 



Mr. Charles Bailey, F.L.S., communicated a paper 

 'entitled " Descriptions of twenty-three new Species of 

 Hymenoptera," by P. Cameron. 



Mr. J. Cosmo Melvill, M.A., F.L.S., communicated 

 a paper entitled " A Survey of the genus Cypraea (Linn.), 

 its Nomenclature, Geographical District, and Distinctive 

 Affinities ; with descriptions of two new Species and several 

 varieties." 



Professor A. SCHUSTER, F.R.S., read a paper entitled 

 " Memoir of the late Professor Balfour Stewart, LL.D., 

 F.R.S." 



Descriptions of twenty-three new species of Hymen- 

 optera. By P. Cameron. Communicated by Chas. 

 Bailey, F.L.S. 



(Received April lyt/i, 1S88.) 



The chief interest of the following paper consists in its 

 containing either descriptions of species belonging to genera 

 or groups which have been very little studied, and which 

 consequently are very little known ; or descriptions of 

 species of well-known genera from regions which have 

 been hardly explored, at least as regards their Hymenop- 

 terous Fauna. Of the former class I may allude to the six 

 new species oiEpyris, of which three are European, including 

 one from England, and to the six new parasitic Cynipidae 

 from Britain. Possibly the most important species described 



