1,98 THE CANADIAN ENTOMOLOGIST. 



; N. brachythorax G. On Ampelis garrula. Agrees very closely 

 with descriptions and figures of specimens from the same bird in Europe. 

 ; JV. cajididus N. On Colaptes auratus ; also same species, probably, 

 from Picus villosiis. Differs from descriptions of specimens from Picus 

 ^canus and P. viridis of Europe in some details, and further material may 

 perhaps establish it as a variety. 



Also undetermined Nirmi, from Crow, Meadowlark, Pelican, Yellow- 

 headed Blackbird, Duck and Avocet. 



ONCOPHORUS. 



O. minuta N. On Fulica americana. Occurs in Europe on Galli- 

 nula actinopus, orientalis and hae>natop7is, according to Piaget, and 

 probably equals Denny's JV. fulicce from the Fulica atra. 



LIPEURUS. 



L. bacu/us, N. On domestic pigeons. No apparent difference from 

 European specimens. 



Z. squalidus, N. On Ajias boschas. Apparently here, as in Europe, 

 common to many species of ducks. Also undetermined Lipeui-i from 

 Crane, Avocet, Bittern and Snipe. 



ORNITHOBIUS. 



O. bucephalus G. On Cygnus buccinator. Agrees closely with 

 descriptions of specimens from C. musicus. 



TRICHODECTES. 



T. rctusus N. On Putorius ermincus. Occurs in Europe on Mustela 

 vulgaris. 



T. scalaris N. Common to cattle the world over. 



T. parumpilosus. Common to horses. 



Also specimens in this genus from the Pocket Gopher, Geomys bur- 

 sarijis, apparently undescribed. 



MENOPON. 



. M. palliduj7i N. Common to domestic fowls. 

 Also several undetermined species. 



COLPOCEPHALUM. 



. C. flavescens N. On Nauclerus furcatus. In Europe said to occur 

 on various Raptores. 



