NEW MALLOPHAGA. 485 



mens from Strix otus and Strix brachyotus. Denny 

 collected the species from Otus( Strix) vulgaris and Otus 

 (Strix) brachyotus, and Piaget from Strix brachyotus 

 and from Falco tinniinculus. Picaglia (Pediculini dell' 

 istituto anatomo-zoologico d. r. Univ. di Modena, Atti d. 

 Soc. d. Nat. di Modena, 1885, ser. iii, vol. iv, p. 13) 

 records Bubo maximus, Otus vulgaris, O. brachyotus, and 

 Tinniinculus alaudarius as hosts of cursor. There is some 

 discrepancy between Giebel's and Piaget's description of 

 the species, especially touching the lateral emargination 

 of the forehead, a character which, according to Piaget, is 

 noticeable, and which indicates the affinities of cursor and 

 the hawk-infesting Docofhori. My specimens vary 

 noticeably from the descriptions of the Old World forms, 

 especially in the distinctly pendulous eye and the character 

 of the genital blotches. They are also larger than the 

 European specimens. Probably they should be given a 

 varietal name. The species may be recognized by com- 

 parison with the figure. In the male the lateral abdom- 

 inal blotches cover much more of the abdominal surface 

 of course, and the specimens are smaller. My specimens 

 measure — Male: Body, length 1.9 mm., width .75 mm.; 

 head, length .62 mm., width .62 mm. Female: Body, 

 length 2.22 mm., width .9 mm.: head, length .66 mm., 

 width .66 mm. 



Docophorus ceblebrachys Nitzsch (Plate lxvi, fig. 3). 



Zeitschr. f . ges. Naturwiss. (ed. Giebel), 1861, vol. xvii, p. 528. 

 Docophorus ceblebrachys N., Denny, Monograph. Anoplur. Brit., 1842, 

 p. 92, pi. i, fig. 3; Giebel, Insecta Epizoa, 1874, p. 77, pi. xi, fig. 

 15; Piaget, Les Pedicu lines, 1S80, p. 29, pi. i. rig. S. 



Numerous specimens from two Snowy Owls, Nyctca 

 nyctca (Lawrence, Kansas). Taken by Nitzsch, Denny 

 and Piaget on individuals of the same bird species. A 

 distinctly marked and isolated form peculiar, probably, to 



