Mallophaga 5d 
Genus Lipeurus. 
Lipeurus protervus Kellogg. 
New Mallophaga, III, 1899, p. 31, PL III, f. 4. 
Many specimens, males and females, from Rock Ptarmigan, Lagopws rupestris 
(Gmel.), taken at Bernard harbour, Northwest Territories, in November, 1915, 
and May, 1916, and at Demarcation point, Alaska, in May, 1914; and from 
Willow Ptarmigan, Lagopus lagopus (Linn.), taken at Bernard harbour, in 
February, 1915, and March, 1915, and at Demarcation point, Alaska, in May, 
1914. 
Also several males and one female from a Lapland Longspur, Calcarius 
lapponicus (Linn.), taken at Demarcation point, Alaska, in May, 1914. Since 
the species is typically a parasite of grouse, one is led to question the 
authenticity of this record. 
Recorded by Kellogg, and Kellogg and Kuwana from Lagopus lagopus from 
Alaska. 
From a comparison of the expedition specimens with the descriptions of 
European writers, I am led to the conclusion that L. protervus is closely related 
to, if not identical with, the Nirnius quadrulatus of Nitzsch. This species, 
which Harrison looks on as a synonym of Degeeriella camerata Nitzsch., has 
been recorded by a number of European writers from various species of Tetrao 
and Lagopus. 
Genus Philopterus. 
Philopterus ceblebrachys Nitzsch. 
In Denny, Anoplur. Brit., 1842, p. 92, PI. 1, f. 3. 
Numerous specimens, males and females, from Snowy Owl, Nyctca nyctea 
(Linn.), taken at Barter iisland, Alaska, in June, 1914. 
Recorded by Kellogg from the same host taken at point Barrow, Alaska. 
I have numerous specimens of this species from the same host taken in 
Ontario. These specimens are uniformly paler and stouter and the clypeal front 
more broadly truncate than the expedition specimens. The latter approach 
more nearly to the descriptions and dimensions given by European writers, 
especially Piaget, than do my southern specimens. It is doubtful, however, if 
the two can be separated. 
Philopterus cursor Nitzsch. 
In Burmeistor Ilandbuch II, 1838, p. 426. 
Mature male and female and numerous immature specimens of both sexes 
from Short-eared Owl, Asio flammeus (Pontoppidan), A. accipitrinus (Pall.), 
taken at Barter island, Alaska, and Demarcation point, Alaska, in May, 1914. 
Recorded by Kellogg from the same host taken at point BarroAv, Alaska. 
Philopterus dentatus Scopoli. 
Ent. Cam. 1763, p. 383. 
One female from a Hutchin's Goose, Branta canadensis hutckinsi 
(Richardson), taken at Bernard harbour, Northwest Territories, in June, 1915. 
Recorded by European and American writers (P. icterodes) from various 
species of ducks and geese; by Kellogg from Merganser serrator Linn., taken 
at Kodiak island, Alaska. 
