202 PROCEEDINGS ENTOMOLOGICAL SOCIETY 



Mr. Malloch said : There are certain causes which limit the 

 geographical distribution of an insect, and one of the principal 

 factors in the limitation of phytophagus species is the range 

 of the food plant. Although the species may not necessarily 

 occur everywhere its food plant does, it does not occur where 

 the plant does not, unless in certain cases where there may be 

 closely allied plants upon which it may feed. This principally 

 applies to Trypetidse. In the case of species feeding on car- 

 rion or decaying vegetation the distribution is not governed 

 by the occurrence of their food, but by climatic and other 

 factors. Of the 29 British species of Faiinia, an anthomyid 

 genus of habits last referred to, he took 23 species within a 

 radius of 5 miles in Scotland, and of these 16 occur in North 

 America, which is a much larger proportion than is the rule in 

 other groups, and particularly in the phytophagus genera. 



MEETING OF OCTOBER 3, 1912. 



The 261st regular meeting of the Entomological Society of 

 Washington was entertained by Mr. Schwarz at the Saen- 

 gerbund Hall, 314 C Street NW.,on the evening of October 3. 

 Present, Messrs. Barber, Busck, Caudell, Corey, Cushman, 

 Dyar, Gahan, Gill, Heidemann, Hopkins, Myers, Popenoe, 

 Quaintance, Rohwer, Schwarz, Stedman, Symons, and Walton, 

 members, and Messrs. J. D. Hood, W. Middleton, J. B. 

 Parker, and R. C. Shannon, visitors. 



President Quaintance occupied the chair, and in the ab- 

 sence of Mr. Sasscer, Mr. Busck was asked to act as Record- 

 ing Secretary pro tern. 



The minutes of the preceding meeting were read and ap- 

 proved. 



Mr. Caudell proposed the name of Mr. J. D. Hood, Mr. 

 Rohwer the names of Messrs. F. Johansen and W. Middleton, 

 Dr. Hopkins the name of Mr. C. T. Green, and Mr. Busck 

 the name of Mr. Carl Heinrich, for active membership. These 

 names were laid over according to the rules. 



The President informed the Society that Mr. R. Wooldridge, 

 whose name had been proposed at the last meeting, had asked 



