12 



NORTH AMERICAN ANOPLURA 



Polyplax spinulosa (Burm.). 



Plate I, fig. 5 ; plate V, figs, na and lib ; plate VI, fig. 7 ; text fig. 1. 



Pediculus spinulosus Burmeister, Gen. Rhynchota, no. 8, (1839). 



Pediculus denticulaius Nitzsch and Giebel, Zeit. fur Ges. Naturw., vol. 23, p. 24, 



(1864). 

 Haematopinus spinulosus Denny, Mon. Anopl. Brit., p. 26, pi. 24, fig. 5, (1842). 

 Haematopinus spinulosus Giebel, Ins. Epizoa, p. 38, pi. 1, fig. 7, (1874). 

 Polyplax spinulosa Enderlein. Zool. Anz., vol. 28, p. 142, (1904). 

 Polyplax spinulosa Dalle Torre, Genera Insect., Anoplura, p. 14, (1908). 

 Haematopinus (Polyplax) spinulosus Neumann, Arch, de Parasitologic, vol. 13, 



p. 526, (1909). 

 Polyplax spinulosa Mjoberg, Arkiv. for Zoologi, vol. 6, no. 13, p. 160, (1910). 

 Polyplax spinulosa Fahrenholz, Reprint from the second, third and fourth Jahresb. 



des Niedersach. Zool. Vereins zu Hannover, pp. 30-37, (1912). 



One mature female, two mature males, and two larvae of this cos- 

 mopolitan, rat-infesting species, from Epimys norvegicus (Inverness, 

 Marin county, Calif.), and many males and females from Microtus cali- 



Fi g 1.— Polyplax spinulosa (Burm.) ; head of female and sternal plate of male from 



Epimys norvegicus. 



