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fusca, a week previous to the males, then the males were more abundant 

 for a time and after that the females more abundant. The males appear 

 to be short-lived as compared with the females. He would take females 

 fresh and full of eggs, then old and full of eggs and then very old battered 

 with few eggs. Gibbosa is not common at Washington. Ilicis is rather 

 rare wherever known but a few may be beaten from trees. In New York 

 he collected in early evening and watched for movements of the insects 

 in grass and the most collected were ilicis while but very few of these 

 were taken at the lamps. Many species are absolutely local. Fusca and 

 inversa are everywhere. Affinis occurs in very limited spots. He had 

 observed in Washington one particular tree where it was almost certain 

 to be found. Mr. Ulke, collecting later in the sason, had taken yr«/^r«<7, 



Mr. Webster remarked that he had collected many years in Eastern 

 Illinois (DeKalb Co.) without getting gibbosa but found it common in 

 the Western part of the State (Stark Co. ) and he was somewhat surprised 

 at Mr. Westcott's securing it in such large numbers. 



Mr. Westcott stated that he had collected gibbosa for twenty years 

 near Chicago. 



Dr. Peabody had no doubt that the condition of weather would 

 affect the numbers o^ Lachtiosterfia which would appear on certain nights. 

 He doubted whether it would influence the numbers that would appear 

 in a given season. These insects transform to imagos in autumn, and 

 hybernate in that stage; after having endured the cold and wet of a long 

 winter, it is hardly possible that their emergence would be prevented by 

 a little cold or wet in May or June, unless they should be actually drown- 

 ed out. When a warm night gives them their opportunity they will ap- 

 pear in numbers determined chiefly by the conditions affecting m their 

 larval growth. 



Mr. Smith said conditions of weather have a great influence; the 

 beetles transform in Fall and it takes wet hot weather to bring them out 

 in the Spring. 



A motion to continue the session of the Club through the morning 

 was lost, many of the members wishing to attend meeting of section "F." 



Mr. Howard made a few remarks upon the recent successful ex- 

 periments made under Dr. Riley's direction at Washington with kerosene 

 emulsion against white grubs. (A fuller account of these experiments 

 than that given by Mr. Howard has since been published in Insect Life, 

 Vol. I, No. 2.) 



Mr. Webster expressed his doubt of the practicability of this plan 

 on large farms. 



Mr. Howard said it could probably be used only on lawns or where 

 special value of ground warranted the necessary expense. 



