DISEASES OF POULTRY. 165 



CHAPTER IX. 



Par.\sitks and Diseases of the Skin. 



THE EPIZOA OK PARASITES LIVING UPON THE EXTERNAIwSUR- 

 FACE OF THE BODY — SCABIES OK MANGE OF THE BODY — 

 SCAHIES CAL'SED BY EHIDEKMOPTES — SCABIES CAUSED BY 

 SAKCOPTES, DEPLUMING SCABIES — FAVUS^CHICKEN POX, 

 SORE HEAD, PIGEON POX. 



® 



THE EPIZOA OR PARASITES LIVING UPON THE EX- 

 TERNAL SURFACE OF THE BODY. 



I'R domesticated birds are liable to be infested 

 with a considerable number of species of ex- 

 ternal parasites. These parasites living upon 

 the surface of the body are grouped as epizoa. 

 Space will not permit a detailed description of the 

 various species, but the following list gives the scien- 

 tific name, the popular name, when possible, and the 

 kind of bird infested : 



Group I. epizoa which suck blood or gnaw thf-: flesh. 

 Pulex avium. The bird flea. Fowls, pig-eons, and many 

 other birds. 



Acanthia columbaria. Dove-cote bu^--. Fowls and pig-eons. 



Derviestes lardarius 1 Larva; I 

 Tencbrio molitor \^ ^j j. Youn-- pigeons. 



Nfcrophorus ) Various | Coieoptera I 

 sup ha i species, j -' 



Argas reflexus. Pigeon tick. Pigeons. 

 Leptus autumnal is. Harvest bug. Fowls. 

 Dermatiyssus gallimr. Red mite. Poultry, pigeons, and 

 house birds. 



