FEATHER-LICE INFESTING CHICKENS. 



119 



Fig. 92. — Biting-louse of the chicken. Greatly 

 enlarged. After Nitzsch. 



Goniocotes hurnettil Pack. 



Dr. Packard describes this feather-louse as occurring in 

 large numbers on the domestic fowl. The illustration (fig. 



Fig. 93. — Biting-louse of 

 the chicken. Greatlj- en- 

 larged. After Packard. 



Fig. 94-. — Biting-louse of the chicken. 

 Greatly enlarged. Original. 



93) shows its general appearance. It is a slightly yellowish 

 insect streaked with black markings. 



Gordodes disshniUs Nitzsch. 

 This large species seems to be rather common upon our 

 chickens; it measures from 2 to 2i/^mm. in length, and is of a 

 tawnj^ color. It is rather smooth and shining. The para- 

 site has a large subquadrate head, a short transverse thorax 



