BIRD- INFESTING MALLOPHAGA OF JAPAN. 



2O9 



Piaget, Les Pediculines, 1880, p. 350, pl. XXXI, fig. I, Kellogg, New 

 Mallophaga, I, 1896, p. 130, pl. X, fig. 1. 



Ten specimens, all female, were collected by Mr. N. Kuroda from a 

 red breasted merganser, Mergris scrrator, taken at Haueda near Tokyo, 

 1915. 



This species differs from the preceding only in being smaller and in 

 having the ground colour of body deeper brown with somewhat indistinct 

 blackish markings. As has been pointed out by Professor Kellogg,* the 

 two forms from Anas and Merga>iscr may be regarded to be the same 

 specifically, but it seems they should be distinguished, on account of the 

 above differences, as varieties or subspecies. 



Measurements of the specimens on hand are as follows : — 











-r 





3 



-r 







j 



-r 



-r 





 -t- 



- 



Length of body ... 



iiuii- 



3.06 



mm. 



3-27 



in m . 



3-27 



ram. 



3-27 



mm 



3-27 



muri. 



3-38 



mm. 



3-27 



mm. 



3-27 



n,m. 

 3-27 



mm. 



3.06 



Width of body 



■55 



•58 



.60 



.62 



•55 



.52 



.60 



.62 



.62 



•55 



Length of head . . . 



•s» 



.60 



.61 



.01 



.61 



.61 



.61 



.61 



.61 



.58 



Width of head 



.42 



.46 



.46 



46 



•45 



■45 



•45 



•45 



.46 



■44 



12. Ijipeurns intermedins Piaget. 



Piaget, Les Pediculines, 1880, p. 368, pl. XXIX, fig. 7. 



One male, five females and two youngs were collected from a Piiasiaiius 

 versicolor, shot in Prov. Iwashiro. Feb. 18, 1916. Six males and five female;* 

 were taken from skins of Phasianus sciiitillans collected in Prov. Shinanc 

 and in Prov. Musashi, Jan. 10, 1903 ; and one male, two females and four 

 youngs from a skin of Gainaeus szvinhoii from Formosa. 



* Kellogg, New Mallophaga III, p. 102. 



