CATALOGUE OF INSECTS. 



699 



which is really a degraded, wingless member of this family. They are termed 

 pupipara because the larva remains in the body of the mother until it is mature 

 and ready to enter the pupal stage. 



Family HIPPOBOSCIDiE. 



Fig. 326. Fig. 327. 



Fig. 326. — A bird-fly, Olfersia sp. : enlarged. Fig 327. — Bee-louse: Br aula sfi. : much enlarged. 



OLFERSIA Wied. 



O. americana Leach. On the red-tailed hawk, XI, 9, Haddonfield : it also 

 frequents the great horned owl and screech owl. 



O. arcleae Macq. On American bittern, IX, 15, 21, X, 10, and night heron, 

 X, 15, shot by Mr. Chas. Liebeck along the Delaware river ; little blue 

 heron, Bristol Island, Delaware river (Fowler). 



PSEUDOLFERSIA Coq. 



P. maculata Coq. Cape May, VIII, from a fish hawk (Sk), Lahaway, IV, 1, 

 several specimens from fish hawk, by J. Turner Brakeley. 





ORNITHOMYIA Latr. 



O. pallida Say. On the reed bird, IX, 2, and red-winged 

 black bird, VIII, 19, shot by Mr. Chas. Liebeck along 

 the Delaware river. /: • 



MELOPHAGUS Latr. 



M. ovinus Linn. The "sheep louse-fly"; infests the ^ck" 



sheep. 



Melophagus 

 minus : enlarged. 



