Feb., '05] ENTOMOLOGICAL NEWS. 57 



Prof. J. B. Smith discussed the value of characters used in 

 classification and specially referred to his work on the genitalia 

 of Lachiwstcrua. 



Dr. L,. O. Howard complimented Dr. Calvert on his work 

 and referred to the value of larval characters. He also men- 

 tioned the utility of genitalic characters in elucidating other 

 smaller differences. 



Prof. Ouaintance talked of his studies in the Aleyrodidse, and 

 said the classification of the family was based on larval characters. 



Dr. Felt alluded to his recent work on mosquitoes and said 

 exact illustration by the aid of photo-micrographs was of very 

 great importance. 



Prof. E.D. Sanderson said he had used a method similar to that 

 of Dr. Calvert and found it very useful in the study of plant lice. 



Dr. Henry C. McCook spoke eloquently of the great value 

 of entomological studies and contrasted the early days with 

 present universal recognition of the value of such studies. 



Prof. H. E. Summers gave an account of a method of mathe- 

 matical differentiation of species, trying to elucidate by a single 

 character the expression of the others. 



Mr. H. L,. Viereck gave a resume of his studies in Andrenidse. 



Mr. Rehn gave an address on the extralimital species of 

 Orthoptera. 



Mr. E. M. Walker commented on Mr. Rehn's communication 

 and spoke of the Canadian species. 



Dr. James Fletcher spoke lovingly of Canada and referred to 

 his studies of rare Canadian butterflies, such as Ar^. as/at'/i', 

 Chion. alberta and Erebia "ddlcri. 



Prof. Ouaintance said he wished to thank the Philadelphia 

 Entomological Societies in behalf of the visiting entomologists 

 for their hospitality and the good time shown them. 



Dr. Calvert made some remarks on the value of organizing 

 a National Entomological Society. After discussion, Mr. 

 Bradley moved that a committee of three be appointed by the 

 Chair to consider the matter. The committee appointed con- 

 sisted of E. I). Sanderson, H. T. Fernald and J. C. Bradley. 

 After the meeting some time was spent in social intercom st- 

 over the refreshments provided by the local committee. 



HENRY SKINNKK, Sn- 



