24 



NORTH AMERICAN ANOPLURA 



It was suggested by Cummings that the presence of a pair of finger- 

 like flaps at the end of the abdomen of the male may perhaps be charac- 

 teristic of the genus. We find, however, that in one species these flaps 

 are not present, and furthermore that they are present in the genus Neo- 

 haematopinus. In fact we are of the opinion that in general but little re- 

 liance should be placed upon the males in determining generic relation- 

 ships, altho there certainly are some exceptions to this. 



Linognathoides montanus (Osborn). 

 Plate V, fig. i ; plate VI, fig. 4; text fig. 9. 



Haematopinus montanus Osborn, Bui. 5, n. s., U. S. Dept. Agr., Div. Ent, p. 184, 



fig. 107, (1896). 

 Haematopinus columbianus Osborn, Can. Ent, vol. 32, p. 215, (1900). 

 Polyplax (?) montana Enderlein, Zool. Anz., vol. 28, p. 143, (1904). 

 Polyplax (?) columbiana, ibid. 



Polyplax (?) montana Dalla Torre, Genera Insect., Anoplura, p. 13, (1908). 

 Polyplax (?) columbiana, ibid. 

 Linognathoides (?) columbianus Cummings, Bui. Ent. Res., vol. 5, pt. 2, p. 160, 



(1914). 



Fig. 9. — Linognathoides montanus (Osborn) ; pleural plates and head of female 

 from Citellus beacheyi douglasi. 



