OF WASHINGTON, VOLUME XV, 1913. 73 



pyri Bouche, the pear leaf curling midge is distributed over central 

 and northern Europe, though it has as yet attracted but little atten- 

 tion by its injuries. Asphondylia lupini Silv. injures lupines in 

 Italy, the maggots infesting and aborting the seed pods. This 

 species was reared from its host by Coquillett at Los Angeles. 

 Mayetiola avence March, injures wheat in southern Europe much 

 like its cogener, M. destructor. Contarinia nasturtii Kieffer, the 

 so-called " swede midge," infests swedes in Ireland, the maggots 

 occurring at bases of leaf stalks. It occurs on various cruciferous 

 vegetables in Europe. C. gossypii Felt infests the flower buds of 

 cotton, causing the bracts to flare and squares to drop. This pest 

 appeared in Antigua in 1907, and caused very serious losses at 

 the time. It is apparently still confined to that Island. Ceci- 

 domyia oryzce Wood Mason has been destructive to rice in Bengal. 

 Parricondyla gossypii Coq. is a pest in Barbados, and is present in 

 Montserrat. The red maggots occur under the bark of the stems of 

 the cotton plant, which they may completely girdle, causing the 

 death of the portion above the infested area. 



Bibionidce. 



The larvae of Bibio hortulamis L. live on the roots of various 

 garden and other crops in Europe, the species also occurring in 

 northern Africa and Asia Minor. 



Syrphidce. 



The Narcissus fly, Merodon equestris Fab., in Europe, is injurious 

 to bulbs of narcissus, daffodil and amaryllis. The species is now 

 well established in British Columbia. 



Anthomyidce. 



We have already received from Europe several of the injurious 

 species of this family and other forms are yet to be introduced. 

 Pegomyia hyoscyami Panz. infests the foliage of garden vegetable 

 as beets and spinach, though apparently it is not of great impor- 

 tance at the present time. P. betce Curtis, in England, is noted as 

 of increasing economic importance and is just now doing a good 

 deal of injury to beets. The larvae attack the mesophyll of the 

 leaf. There are two or even three broods each year. 



Trypetidce. 



The Trypetid family of flies is one of almost world-wide distribu- 

 tion and contains many species of the greatest economic impor- 

 tance, as the so called fruit flies. These are especially destructive 

 for the reason that thus far no remedies have been developed which 



