( iv ) 



Parnassms he had seen from within the arctic circle, and 

 Colias viluiensis, Men., an insect peculiar to Siberia, showing 

 remarkable female aberrant forms. The President observed 

 that these collections threw a great light on the butterflies 

 inhabiting the fringe of the holarctic region. 



Mr. 0. 0. Waterhouse gave an account of a nest of a bee, 

 Trigona collina, recently received from Malacca. The whole 

 resinovis mass weighed 40 ll)s. A section of the nest which 

 was exhibited showed the cavities in the resin filled with 

 pollen. The central portion of the nest was constructed of 

 more waxy material, and contained numerous cells in which 

 were immature bees. The bees were still alive when the nest 

 arrived, and among them males as well as workers were 

 found. Specimens were exhibited, as were also males and 

 a worker of the much smaller species, Trigona rnficornis, 

 Smith, received at the same time from Singapore, and sent by 

 Mr. H. N. Ridley. 



Mr. W. J. Kaye exhibited two drawers containiog Danaine, 

 Ithomiine and Heliconine species from British Guiana,, all of 

 similar coloration, and forming a MUllerian association with 

 a black hind-wing. He pointed out that possi])ly the species 

 had converged, and that some were in advance of others. 

 The central species was considei-ed to be a Melinsea — 

 Melinxa crameri, a species with a constant pattern and a very 

 complete black hind-wing. Closely following this Melinica 

 mveme (a very abundant and variable species) entered, drawing 

 in its turn a large number of different species of even widely 

 different families. A diagrammatic table was shown with the 

 exhibit, which included the following species : (1) Ithomiina', 

 Jleliiuva crameri, M. mneme, M. egina, M. n. sp., Ceratinia 

 veritabilis, Ceratinia, sp., Meclianifis dori/ssu^t ; (2) Danaimx', 

 Lycorea ceres, L. jmsinuntia ; (3) HeUconinn' , Ileliconiiis 

 vetusttis, IT. numata, H. sylvana, Eueides, n. sp.; and (4) 

 Erycinkhv, Stolachtis caUioj^e, 



Papers. 

 The following papers were communicated : — 

 " On the Hypsid Genus Deilemera, Hiil^ner, hj Colonel 

 Charles Swinhoe, M.A., F.L.S," 



