356 FRUIT INSECTS 



full-grown ; they are then over | inch in length, white, with 

 black mouth parts. They then leave the fruit through a ragged 

 hole in the skin, sometimes while it is hanging on the bush, but 

 more often after it has fallen to the ground, and go into hiber- 

 nating quarters a short distance in the ground or beneath 

 rubbish. The winter is passed in a broadly oval, straw-colored 

 puparium about J inch in length. There is only one generation 

 a year. 



No practicable method of controlling this insect in large 

 plantings has been suggested. In the garden it might be 

 feasible to collect and destroy the infested berries either before 

 they fall or very soon afterwards. Where poultry are allowed 

 to run under the bushes, they may be able to find and destroy 

 many of the puparia. 



References 



Me. Agr. Exp. Sta. Kept, for 1895, pp. 111-124. 

 Paine, Psyche, XIX, pp. 139-144. 1912. 



The Dark Currant Fruit-fly 

 Rhagoletis ribicola Doane 



In Washington and neighboring states currants and goose- 

 berries are also subject to the attacks of a species of fruit-fly 

 closely related to the preceding. The adult is only about half 

 as large as the house fly, black with four yellow stripes on the 

 thorax and a large spot on the scutellum yellow ; the head is 

 yellow with greenish eyes, the legs are yellow and the wings 

 are crossed by four brown bands. 



The flies are on the wing from the middle of June till the 

 middle of July. The female deposits her eggs just beneath the 

 skin of the berry, and the maggot becomes full-grown in three 

 or four weeks. They enter the ground a short distance, or f nd 

 protection beneath rubbish and pass the winter in a brownish 

 or black puparium. The habits and Ufe history of this species 



