i8 



NORTH AMERICAN ANOPLURA 



Fig. 4. — Hoplopleura hesperomydis (Osborn) ; pleural plates, head and ventral side 

 of terminal abdominal segments of female. 



K>r 



n 



Fig. 5. — Hoplopleura hesperomydis (Osborn) ; ventral side of second and anterior 

 portion of third abdominal segments. 



Hoplopleura erratica (Osborn). 



Haematopinus erraticus, Bui. 5, n. s., U. S. Dept. Agr., Div. Ent, p. 186, (1896). 

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

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



We have not been able to see the type of this species, and the pub- 

 lished description is a little too concise to permit of its certain identifica- 

 tion. Professor Osborn, however, has sent us specimens of a species 

 which he says is close to it, and, since these specimens which he has sent 



