( lviii ) 



Mr. M'Lacblan remarked on the differences in the terms 

 hitherto used for different families with regard to the neuration 

 of the wings, and he observed that in some points the neura- 

 tion of the wings of the Trichoptera and Lepidoptera agreed ; 

 and he called special attention to one or two species of 

 Lepidoptera (of which Mr. Waterhouse exhibited drawings) 

 as being most remarkable. 



Mr. Poulton, Dr. Sharp, Mr. Verrall, and Mr. Waterhouse 

 continued the discussion. 



Papers raid. 



Mr. G. T. Baker contributed " Descriptions of new species 

 of Lepidoptera from Algiers." 



Mr. Gervase F. Mathew, E.N., communicated a paper 

 entitled "Life-histories of Ehopalocera from the Australian 

 Kegion." The paper was accompanied by elaborate coloured 

 drawings of the perfect insects, their larvas and pupae. 



Mr. Frederic Merrifield read a " Eeport of Progress in 

 Pedigree Moth-breeding, with observations on incidental 

 points." He also exhibited a large number of specimens of 

 Selenia illunaria, showing the results of the experiments he 

 had been making. He said that, having obtained plenty of 

 living specimens of S. illunaria in the spring, his experiments 

 with that species were more advanced than with 5. illustraria. 

 From eggs of illunaria laid by moths taken in the spring he 

 had reared a second generation fed on sleeved birch trees, 

 the moths emerging in July. From these he had made a 

 selection of long- winged (A), medium-winged (M), and short- 

 winged (Z) pairs, and from each of these pairs he had batches 

 of pupa; numbering from GO to 100, now hybernating. 

 Besides the insects thus reared under natural conditions, he 

 had reared some which were kept during all their stages in 

 an artificial temperature averaging a little under 80° Fahr. 

 In this way he had obtained four successive generations, and 

 from the last of them, being the fifth generation of the year, 

 counting a generation as beginning with the egg (the moths 

 caught in the spring reckoning as belonging to the first), he 

 had three selected broods, comprising between 200 and 300 



