OF WASHI.N<;T<>.\, VOLUME xix, 191: 29 



THREE HUNDREDTH MEETING, 

 JANUARY 4, 1917 



The 300th regular meeting of the Society was entertained by 

 Mr. E. A. Schwarz at the Saengerbund Hall, January 4, 1917. 

 There were present Messrs. Ainslie, Back, Baker, Boving, Busck, 

 Caudell, Cole, Cushman, Dietz, Duckett, Ely, Fink, Gahan, 

 Garman, Gibson, Gill, Greene, Heinrich, Howard, Hunter, 

 Hutchison, Isely, Johansen, Kelly, Kotinsky, Marlatt, Mid- 

 dleton, Morrison, Pierce, Popenoe, Ransom, Rohwer, Sanford, 

 Sasscer, Schwarz, Simanton, Snyder, Turner, Walton, and White, 

 members, and K. B. Brown, J. A. Corcoran, W. E. Dove, Henry 

 Fox, Seymour Hiadwen, Leale F. Howard, H. G. Ingerson, U. C. 

 Loftus, visitors. 



Mr. James C. Evenden, Bureau of Entomology was elected a 

 corresponding member. 



Mr. J. S. Wade, of the Bureau of Entomology, and Mr. Harry 

 F. Dietz, of the Federal Horticultural Board, were elected active 

 members. 



The chair announced the death January 2, 1917, of Mr. John 

 F. Strauss, a member of the Society. 



The following program was presented: 



A REVISION OF THE NORTH AMERICAN GRACILARIIDAE FROM 

 THE STANDPOINT OF VENATION. 



BY C. R. ELY. 



The writer has for some time been interested in the genus 

 drucilarid and its allies. The appearance of Meyrick's Revision 

 of the Gracilariidae was therefore very welcome. It was a mat- 

 ter of some surprise that, in this revision, the character of the 

 vestiture of the legs was made of chief importance in delimiting 

 genera and that less emphasis than usual was placed upon vena- 

 i i"ii. It is not intended, in this paper, to combat the deliberate 

 opinion of Mr. Meyrick, in regard to what character is of most 

 importance within this family, but it is believed that the publi- 

 cation of a classification of our North American forms, from the 

 standpoint of venation, may be made to serve a useful purpose. 



