ELM LEAF BEETLE IN NEW YORK STATE 



11 



As there seems to have been no attempt, at least in this 

 country, to determine the prolificacy of this insect, the following- 

 may be of interest. May 31, 1898, two heavy gravid females 

 were isolated, provided with plenty of food, and the egg^ 

 removed and counted nearly every day. The results are tabu- 

 lated below. 



Record of eggs deposited by two elm leaf beetles ^ 



FEMALE IN VIAL 



June 1 , 



2. 

 3, 

 4 

 3. 

 6. 



8 



8(2d. m.). 



9 



10 



11 



12........ 



13 



14 



15 



16 



17 



18 (absent) 



19 



20 



21 



22 



23 



24 



25 



CLUSTERS OP 



(2) 

 I. 9, 14 



15 



20 



20 



23 



11,13 



31 



16), 5 



28 



26, 30 



2,6 



3.18 



2,20 



27 5,7,9,15 



28 (beetle dead) 



29 

 32 



18 18 



15 

 20 



20 

 23 



24 

 31 

 21 



28 



56 

 8 

 21 

 22 

 97 



36 



FEMALE IN TUMBLER 



CLUSTERS OF TOTAL 



(4) 



42 



18 



18 







26, 21 



47 



4,26 



27 

 (3 p. m.) 3, 31 



30 



37 

 34 



3, (7, 8, 11, 15, 19 



es 



14s 27 41 

 30 30 

 32 32 



10, 26 36 



36 36 



6, 25 31 



4, 31 35 



1, 2, 11. 7, 13 34 



13, 21, 32 66 

 (betetle dead) 4, 17 21 



Totals. 



431 



1 The examinations were made as a rule between 8.30 and!) a. m. though occasionally, when eggs 

 were seen In the afternoon, they were recorded at the time Indicated In the table. The dates In 

 italics fell on Sunday and usually no observations were made then. 



