OF WASHINGTON. 353 



the female. Prof. Riley said that in the majority of Coccids, on 

 the contrary, the reverse is true, and that the females are more 

 suited to parasitism than the males, consequently parasitism of 

 the females is much more common. 



OCTOBER 6, 1892. 



President Riley in the chair. Seventeen members and one vis 

 itor present. Mr. Theodore Holm, of the Department of Agri 

 culture, Washington, D. C., was elected an active member, and 

 the following were elected corresponding members : Prof. J. W. 

 Jenks, Brown University, Providence, R. I. ; T. D. A. Cocke- 

 rell, Institute of Jamaica, Kingston, Jamaica ; Miss E, A. Orme- 

 rod, St. Albans, England ; W. Julich and A. Luetgens, New 

 York city ; Prof. S. A. Forbes, John Marten, and C. A. Hart, 

 Champaign, 111. ; Prof. C. W. Hargitt, Syracuse, N. Y. ; Prof. 

 T. Thorell, Montpelier, France; Prof. W. Kulszynski, Cracow, 

 Austria ; A. D. Hopkins, Morgantown, W. Va. ; and Dr. F. 

 W. Goding, Rutland, 111.' 



Mr. A. D. Hopkins, Entomologist of the Agricultural Experi 

 ment Station, at Morgantown, W. Va., was especially invited to 

 speak upon the subject of a recent trip to Europe for the purpose 

 of studying certain Scolytidae, and of introducing their European 

 natural enemies into America, particularly for use against Den- 

 droctonus fro ntalis.* 



In the discussion of this paper, Dr. Riley stated that L>. fron- 

 talis seems to be rapidly on the increase in this country. In an 

 swer to a question by Mr. Hopkins, Dr. Riley stated further that 

 there would probably be no harm from the introduction of Clerus 

 formicarius, of which Mr. Hopkins had brought over about one 

 thousand living specimens. He thought it quite likely that this 

 species would gradually replace some of our allied native species 

 of similar habits, but that no harm would result. He was of the 

 opinion, however, that better success could be obtained by intro- 



* The substance of Mr. Hopkins' remarks is published in Insect Life, Volume V, No. 3, pp. 

 187-9. 



