128 



HORN FLY AND ITS PARASITES IN HAWAII. 



fly (HcTniatobia 

 illustration.'! 



Hair Hues show iiat 



From Dipterous (two-wing flies) pupae collected in horse 

 clung at Volcano House, Hawaii, about June, 1905, Mr. F. W. 

 Terry, of the Planters' Experiment Station Staff, bred para- 

 sites which upon subsequent examination proved to represent 

 two species of Spalangia {^. hirta, Haliday, and aS. lanaiensis, 

 Ashm.), both recorded in the Fauna Hawaiiensis. The first of 

 these (Fig. 10, b) was collected years ago in Honolulu by 

 Rev. T. Blackburn, while the latter (Fig. 10, a) was found by 



Fig. 10. — Horn fly parasites: a, Spahiiig-zii lanaiensis Ashm.; b. S. hirta, Haliilay; r, 

 horn fly pupa showing exit hole of parasite, x figures indicate magnification. (Author's 

 illustration.) 



