274 THE CANADIAN ENTOMOLOGIST. 



of mosquitoes in water reservoirs on the college campus. The use of 

 kerosene was very satisfactory, and resulted in a very marked subsidence 

 of the mosquito trouble. The author also reports that kerosene is a very 

 good preventive to apply to the hands or face in the case of mosquito 

 outbreaks. 



The report of the committee on nominations was presented by Mr. 

 Lintner, as foUov/s : 



President — J. B. Smith. 

 Vice-President — C. H. Fernald. 

 Secretary — C. L. Marlatt. 



The report was unanimously adopted and the officers named duly 

 elected. (By inadvertence no second vice-president was nominated or 

 elected.) It was decided to follow the usual custom for the next meeting, 

 and hold it on the two days preceding the meeting of the American 

 Association for the Advancement of Science, and at the place decided 

 upon for the next meeting of that Association. On motion, it was 

 requested that the minutes be printed in full in " Insect Life." 



After the reading and approval of the minutes of the entire session, 

 Mr. Southwick moved that the thanks of the Association be tendered to 

 the President and Secretary for the able and satisfactory manner in which 

 they had discharged their respective duties. 



The resolution was adopted. 



The Association was then declared adjourned by the President for one 

 year. C. L. Marlatt, Acting Secretary. 



SEXUAL CHARACTERS IN SCOLYTID^. 



(A Preliminary Contribution.) 



BV A D, HOPKINS, ENTOMOLOGIST OF THE WEST VIRGIN [A EXPERIMENT 



STATION. 



(Read before section F. of A. A. A. S., Brooklyn, Aug. 20th, 1894.) 



It appears that comparatively little is known regarding the external 

 sexual characters of species in the family Scolytidse. Indeed, the species 

 of this family are among the most difficult of Coleoptera to study, or to 

 properly identify, unless one has access to a large series of correctly 

 named and classified examples. It is not so surprising, then, that more or 

 less confusion exists with reference to descriptions of the sexes, and that 

 numerous mistakes have been made in following the classifications and 



