115 



It has been recorded from England, to which country it has probably been 

 introduced with fruit from America, but is hardly a pest in the former 

 country. 



Nearly all the writers upon economic entomology in North America have 

 written upon this pest. In the Annual Report of Maine Agricultural 

 Experiment Station, 1890, Professor L. F. Harvey gives the results of his inves- 

 tigati ms into its life history in the years 1888-9. In the Report of the 

 Experimental Farms at Ottawa, 1898, Dr. James Fletcher says that it is a 

 serious pest in Canada ; and in the State of Vermont as much as half the crop 

 is often destroyed. 



In Circular No. 101 of the United States Bureau of Entomology (1908), 

 A. L. Quaintance gives a very interesting account of this apple pest in the 

 I "nit eel States, where he compiles all the latest information about its spread 

 and the damage caused by its ravages. 



Description of perfect fly : Length of body, 2J lines ; expanse of wings, 

 4 lines. The eyes are black, with the antennae, face, forelegs, and the tibia? 

 and tarsi of the hind legs ochreous. The thorax is black, with white markings 

 on the sides of the prothorax, beneath the wings, and the scutellum white ; 

 the centre of the thorax clothed with grey pubescence ; the head and thorax 

 covered with stout, scattered bristles ; the thighs and base of tibiae of the 

 fore and hind pair of legs black. The hyaline wings are deeply handed 

 with oblique transverse bands of black ; the black abdomen covered with 

 fine hairs, which form grey bands along the apical margin of each segment. 



Sydney : William Applegate Oullick, Government Printer. 1909. 



