REPORT OF THE SOCIETY 47 



parasites which were parasitic not only on the Brown Tail Moth but on 

 native insects as well, otherwise there would be little chance of the para- 

 sites becoming firmly established. So two species, Apanteles lacteicolor 

 Vier., and Compsilura concinnata Meig. and one predaceous beetle, Col- 

 osoma sycophanta L., were chosen for the purpose. 



Apanteles lacteicolor is a small hymenopterous parasite measuring only 

 2.5 mm. in length. This insect has two or three generations a year, for after 

 emerging from the Brown Tail Caterpillars it may attack either the Gypsy 

 Moth, Datana, or Hyphantria caterpillars, the second or third generation 

 carrying them through until the Brown-tails have hatched in the fall. 

 The parasites are in the cocoon stage when they are picked and forwarded 

 to Canada for colonization. 



Compsilura concinnata is a Tachinid Fly, resembling somewhat the 

 common house-fly, though smaller and never found in the house. Like the 

 preceding parasite, it has two or three generations a year, and has a record 

 of some fifty different species of insects as hosts to feed upon. 



Calosoma sycophanta is a brilliantly coloured, green beetle measuring 

 a little over an inch in length. Predacaous in its habits, it feeds upon many 

 species of caterpillars. Shipped in colonies of males and females, 100 to the 

 colony, 3,400 adult beetles thus far have been forwarded to Canada. 



In another address given by Mr. Tothill, field officer at the Dominion 

 Entomological Branch, Fredericton, N.B. we learnt some of the important 

 points relating to the spread of the insects for which the Government is 

 importing these parasites. 



Introduced near Boston, Mass., the Brown Tail Moth and the Gypsy 

 Moth have spread in all directions but more rapidly in the direction of the 

 prevailing winds, that is towards Canada. The Brown Tail has reached 

 Canada already and is established in Nova Scotia and New Brunswick. 

 Now we are assured that the Brown Tail will also reach the Province of' 

 Quebec with favorable winds at the time of the flight of the Moths. The 

 Gypsy Moth has not yet reached Canada, but we may soon expect it across 

 the international boundary. Therefore Calosoma sycophanta has been 

 distributed in Quebec Province in the following places: Ste. Rose, Revoirs 

 Corners, East Hereford, Sherbrooke, DixvilIe,Coaticook, Beaver Meadow, 

 North Troy, Mansonville and Stanstead, while the Apanteles lacteicolor 

 was released (2000 at each place) at Dixville, Coaticook, Beaver Meadow 

 and Way's Mills. 



Among the many interesting addresses and papers of special interest 

 to the fruit-growers, I may mention those dealing with the Fruit Tree 



