256 



NEUROPTEBA. 



poultry : four genera are common on fowls and chicks, 

 namely, Ooniodes, Goniocotes, Menopon, 

 and Lipmnts. These lice live upon the 

 birds permanently, — Goniodes and Gonio- 

 cotes on the neck, under the wings, and 

 on the rump. Menopon is more active, 

 and wanders over the whole body : this is 

 the louse that crawls on to a person pluck- 

 ing fowls, but soon dies. Lipeurus lives 

 between the barbs of the wing -feathers. 

 These lice eat away at the base of the 

 feathers, the skin, &c., and cause severe 

 irritation. They stunt the growth of young 

 chicks to a serious extent, and prevent the 



'1 TrWWWPBHfcV'J' ^. 



— ^FiG. 131. — Tbichodectes 



SPH^ROCEPHALUS ( 9 ) OF 



SuEEF, mag. 20 diameters. 

 (Fleming.) 



birds taking nourishment and rest. 



One can usjually detect the presence of lice on birds by the 

 barbs of the feathers, especially those of the saddle-hackle, be- 



FiQ. 132.— Mallophaga or Bird-lice. 



1, Lipeurus variabilis. 



2, Menopon pallid/um. 

 (All greatly enlarged.) 



3, Goniocotes hologaster 



coming notched and jagged. The antennae of the Bird-lice are 

 composed of four or five joints ; those that we get on the mam- 



