( xxxviii ) 



him, but still alive, and opening and shutting its jaws, 

 illustrating the manner in which these insects are attacked 

 by their enemies. 



Mr. H, WiLLOUGHBY Ellis exhibited Criocephalus jwloyiicus, 

 jNIotsch, a Longicorn beetle new to Great Britain, and also 

 specimens of all stages from the egg to the imago, to illustrate 

 the life-history of the species which he explained. The insects 

 were taken in Scotch fir-trees this year in the New Forest ; 

 and the fact that the larva was found plentifully seemed to prove 

 that the colony had been in existence for some considerable 

 time. He also exhibited specimens of Asemum striatum, L., 

 with larva and pupa, accounted heretofore rare in the New 

 Forest, but this year occurring in abundance. 



Mr. Ambrose Quail exhibited cases showing the life-history 

 of some Austi'alian HejyiaUde?,. 



Dr. D. Sharp, F.R.S., exhibited specimens illustrative of 

 the egg-cases, and life-histories of eight species of South 

 African Cassididx as described in a paper by Mr. F. Muir, 

 and himself. The larvse displayed, with one exception, the 

 peculiarity of retaining the cast larval skins as accumulations 

 on the long anal processes with which the larva? are provided. 

 The exception is the larva of Basipta stolida. In this species 

 the anal tails are more robust and better developed than usual, 

 but they do not carry the exuvise, and are probably used for 

 some other purpose. The egg-cases showed a very interesting 

 series of degrees of perfection ; some of them consisting 

 merely of a few membranes enclosing two or three eggs, and 

 covered with a patch of excrement ; while in the case of 

 Asjndoniorpha puncticosta the ocitheca is among the most 

 remarkable and perfect structures produced by any animals. 

 Both the larvai and eggs are extensively destro3'ed by parasitic 

 Hymenoptera. 



Mr. AV. L. Distant also showed the pupa cases of some 

 African species of the genus Aspklomorplia, South, with the 

 cast heads of the larvre. Sir George Hampson said that in 

 the case of some NoUdec these cast skins acted as a protection, 

 the enemy attacking them instead of the insects themselves. 



Mr. Roland Trimen, F.R.S., exhibited some cases of mimi- 

 cry between butterflies inhabiting the Kavirondo-Nandi 



