288 JOURXAL OF ECONOMIC ENTOMOLOGY [Vol. 1 



AYashington. since about the middle of July considerable damage by 

 the elm leaf-beetle was noticed in the latter city on certain streets. 



The first of the INIassachusetts colonies consisted of about 600 para- 

 sites, enclosed in an open tube and tied to a tree in Harvard Yard. 

 Cambridge, on June 22d. Mr. Fiske thinks that more than a hundred 

 adults found their freedom on the day of liberation and abnost cer- 

 tainl}' the full 600 within a week thereafter. Fresh eggs were abun- 

 dant upon the trees for some time thereafter, and the outlook there 

 is very hojieful. 



Writing on July 29, Mr. Fiske states that he has found eggs of 

 the Galerucella nearly a quarter of a mile from the site of the colony, 

 and that these appeared to be parasitized. 



At Melrose Highlands, Mass., more than 1,200 adults were liberated 

 between the 21st of June and the 8th of July, and unhatched eggs were 

 noticed en to the end of July. 



The eggs sent to Dr. John B. Smith reached him in good condition 

 and a number of the parasites had already issued on the journey. 

 They were very lively and he liberated them upon a small elm that 

 had some eixg clusters and is so situated that he will be able to watch 

 it without difficulty during the summer of 1909. There are also 

 plenty of large trees nearby, so that thci-c will be no difliculfy in the 

 parasites flying from one tree to another. The number of parasites 

 Doctor Smith considered to be too few to risk dividing them up. 



Frcin the material sent to Prof. Slingei-land. at Ithaca, only a few 

 adults issued, and before fresh eggs could be found these had died. 



The parasitized egg masses received in Washington were taken to 

 Dui)ont ("ircle, and the leaves upon which they were deposited were 

 tied among the branches of the first elm on the north side of New 

 Hampshire Avenue south of the Circle, and the fourth elm on the 

 south side of the avenue. Native eggs were abundant. 



So much for the introduction and rearing of a complete laboratory 

 generation, and for the colonization of the species. As to the estab- 

 lishment of the species, there is one note to add. A small lot 

 of fresh eggs collected in the vicinity of the ^Melrose field colony by 

 Mr. Fiske produced a number of parasites on the morning of July 27. 

 In consideration of the small number of eggs collected, it seems prac- 

 tically certain that there must have been a very abundant natural 

 reproduction of the parasites, and the proba})ilities are that the species 

 at this date of writing exists in thousands at IMelrose. The writer 

 has every hope that the species will pass the winter successfully, and 

 that the eggs laid next sunnner will be abundantly parasitized in the 

 natural wav. 



