nisKASi-s OF pori/rKv. 167 



Mcitopoii plurosto)nuin. L,uusc. Peacocks, 

 Docophorus icterodcs. Louse. Ducks and geese. 



Trinoton anseris. Louse. Geese. 



Tririofon confiniiiDit. Louse. Geese. 



'rri)ioton litriduui. Louse. Ducks. 



Trinoton li hi rat it in. Louse. Geese. 

 Colpoccpitatiiin ttirhiitatiiin. Louse. Pig-eons. 

 Clicylcticlla lutcropalpa. Mito. Pigeons. 

 Syrini^ophiliis bipcctinatiis. Mite. Fowls, (Guinea fowls 

 and pigeons. 

 Syringop/iilus nncinatus. Mite. Peacocks. 

 Dermogtyplius elons^atus. Mite. Ft)wls and Guinea fowls. 

 Dernioglyphus minor. Mite. Fowls and (ruinca fowls. 

 Dcnnoi^lyphns varians. Mite, (iuinca fowls. 

 Frcyana anatina. Mite. Ducks. 

 Frcyana clianayi. Mite. Turkej^s. 

 Megninia astcrnalis. Mite. Fowls and Pig-eons. 

 Megniiiia r/t/>itcrtis. Mite. Fowls. 

 Megninia ginglyinura. Mite. Turkeys. 

 Megninia velata. Mite. Ducks. 

 Pterolic/iHS ohtiises. Mite. Fowls. 

 Fteroliclncs iinciualus. Mite. Turkeys. 

 Pteropliagiis strictiis. Mite. Pigeons. 



General Considerations. — We hare grouped 

 together, as epizoa which .suck blood or gnaw the 

 flesh, a number of parasites which produce somewhat 

 similar effects, althougli, zoologically speaking, these 

 pests differ very widely. They resemble each other 

 in that they do not remain constantly upon the birds, 

 most of the varieties hiding about the roosts or houses 

 during the day, and coming out of their concealment 

 to make their attacks by night. They puncture the 

 skin, and suck blood for their nourishment. The 

 coleopterous larvae gnaw the skin, and even the super- 

 ficial muscles of the neck and abdomen of young pig- 

 eons, i^roducing serious wounds and often causing 

 death. 



