Jan. 14. 1918 Fruit-Fly Parasitism in Hawaii during igi6 



107 



Table II. — Percentage of larval parasitism of Ceratitis capitata in Hawaii, IQI'^ — Con. 



The data in Tables I and II covering the guava are of unusual interest. 

 This shrub grows wild and luxuriantly over most of the uncultivated 

 portions of the islands up to an elevation of 1,500 to 2,000 feet, and fruits 

 throughout the year. It is not generally considered by the layman of 

 Hawaii as a favored host of the fruit fly, though of the 18 host fruits 

 given in Table I, it stands fourth in degree of infestation, showing, from 

 1,791 fruits collected during the year, an average infestation of 6.8 larvae 

 per fruit. Infestation of this fruit is not easily detected until it has 

 decayed. The larvae are small and nearly all inconspicuous at the time 

 the fruits are picked and eaten or converted into preserves or jelly. 

 This fruit, though heavily infested in most localities, protects the larvae 



