FEATHER-LICE INFESTING CHICKENS. 119 

Fig. 92.—-Biting-louse of the chicken. Greatly 
enlarged. After Nitzsch. 
Goniocotes burnett 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. Greatly en- Fig. 94.—Biting-louse of the chicken. 
larged. After Packard. Greatly enlarged. Original. 
93) shows its general appearance. It is a slightly yellowish 
insect streaked with black markings. 
Goniodes dissimilis Nitzsch. 
This large species seems to be rather common upon our 
chickens; it measures from 2 to 244mm. in length, and is of a 
tawny color. It is rather smooth and shining. The para- 
site has a large subquadrate head, a short transverse thorax 
