184 PROCEEDINGS ENTOMOLOGICAL SOCIETY 



systematic and bionomic entomology; he has published many 

 important works on economic entomology but above all he is 

 now, and has for many years been the efficient chief and leader 

 of the Bureau of Entomology, and as such has acquired a world- 

 wide and deserved reputation. Under the enlightened and liberal 

 administration of Dr. Howard the growth of the Bureau of 

 Entomology has been really marvellous. It has become a model 

 for the many similar, though much smaller, institutions that 

 have been established of late years in many countries. 



To those of our members who are not acquainted with the 

 history of the National Academy of Sciences the following ento- 

 mological notes may be of interest: Since the organization of the 

 Academy the following entomologists were elected members of 

 the Academy: Dr. John L. Leconte who was one of the charter 

 members, Dr. A. S. Packard, Mr. Samuel Scudder, Prof. W. M. 

 Wheeler (in 1912) and Dr. L. O. Howard in 1916. Of these 

 Leconte, Packard, and Scudder are dead, leaving only two liv- 

 ing members viz. Wheeler and Howard. Some other members 

 wrote entomological papers viz. S. S. Haldeman, Alpheus Hyatt, 

 Joseph Leidy, and Charles S. Minot who are now dead, and 

 Mr. E. S. Morse ana Prof. Wm. Trelease among the living 

 members, but all these were elected to the Academy for work 

 in other fields of Science. 



The following program was presented: 



A SYNOPSIS OF THE GENUS CALAPHIS. 



(Homoptera, Aphididae.} 

 BY A. C. BAKER. 



The genus Calaphis was erected by Walsh (1862) for his species 

 betulella. It was not until some years later that Walker (1870) 

 erected his genus of the same name. One species only was for 

 years referred to the genus but quite recently Gillette (1910) has 

 referred other species here. A study of the forms found in this 

 country has led the writer to place in the genus five species. 



Del Guerico (1913) erected the genus Siphonocallis with betu- 

 Icecolens Fitch as type. In studying this species and compar- 



