30 BIOLOGICAL SURVEY OF 



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Tetrophthalmus Grosse i 



T. iNCOMPOsiTus Kell. & Chap. Occurs on double-crested cor- I 



morant. ] 



Dennyus Neumann J 



D. DUBius Kell. Occurs on chimney swift. ; 



D. TEUNCATUS Olfcrs. Also found on chimney swift. ! 



Trinton Nitzsch ' 



T. LiTURATUM Nitz. lufcsts duck and geese. j 



T. QUERQUEDULAE Linii. Occurs on the various wild ducks. '. 



PsEUDOMENOPON Mjoberg J 



p. PACiFicuM Kell. Found on grebes. 



Laemobotiiriidae i 



Laemobothrion Nitzsch 



L. NIGRUM Burm. Occurs on coots. j 



Ricinidae i 



EiciNis De Geer . 



R. ANGULATus Kell. Fouud on kingbird. 



R. ERENATus Nitz. Occurs on golden-crowned kinglet. 



R. LiNEATus Osb. Found on ruby-throated hummingbird. 



Philopteridae 



GONIODES Nitzsch 



G. DAMicoENis Nitz. lufcsts domcstic pigeon. 



LiPEURUS Nitzsch 



L. CAPONis Linn. Infests domestic fowls. ' 



L. HETEROGRAPHus Nitz. Also Oil domcstic fowls. •] 



Philopterus Nitzsch i 



P. AGELAii Osb. Found on red-winged blackbird. i 



P. AURiTus Scop. Occurs on hairy woodpecker. j 



P. BUTEONis Pack. Infests red-shouldered hawk. | 



P. coLYMBiNus Drury. Found on loon. ] 



P. coRvi Osb. Occurs on crow. j 

 P. CURSOR Nitz. Frequents various species of owls. 



P. FuscovENTRALis Osb. Occurs Oil wood pewee. ; 



P. FusiFORMis Drury. Infests knot and sandpipers. J 



