No. 34-] HEMIPTERA OF CONNECTICUT: PEDICULIDAE. 21 



L. piliferus (Burmeister). Dog louse. 



Gen. Rhyncota, No. 13, 1838. 



This louse, though not very commonly collected, is likely to be 

 found by examination of dogs in any locality. 



Fairfield, 9 May, 1916 (Mrs. j. O. Wright). 

 L. stenopsis (Burmeister). 



Gen. Rhyncota, No. 3, 1838. 



This rather slender species occurs on the goat, and while not 

 recorded for Connecticut, it is pretty certain to be found if sought 

 for on its normal host. 



Polyplax Enderlein. 



Eyes lacking, antennae five- jointed, front legs small, pleural 

 plates well developed. Occurs on mice, rats, and other Muridae. 

 P. spinulosa (Burmeister). 



Gen. Rhyncota, No. 8, 1839. 



Elongate, head small, eyes wanting. Occurs on the common rat. 

 Is widely distributed. 



Connecticut. 



Hoplopleura Enderlein. 



Head short, antennae five-jointed, front legs small, three series 

 of hairs. 

 H. acanthopus (Burmeister) var. americanus Kellogg and Ferris. 



Anoplura and Mallophaga of North American Mammals, 16, 1915. 



This has been separated from the European form on the basis 

 of slight variation in the sternal plate. It has a more or less 

 pronounced rounded projection on the lateral margin which is 

 absent in acanthopus. Occurs on the field mouse Arvicola, and 

 will quite certainly be found on this animal in Connecticut. 

 H. hesperomydis (Osborn). 



Bull. 7, O. S., Div. Ent, U. S. Dept. Agr., 26, 1891. 



Differs from acanthopus in smaller sternal plate which is angular 

 and pointed behind. Specimens in the eastern United States have 

 been taken from the white- footed mouse Peromyscus leucopus at 

 Ames, Iowa, and will doubtless be found commonly in New 

 England. 

 H. erratica (Osborn). 



Bull. 5, N. S., Div. Ent, U. S. Dept. Agr., 186, 1896. 



This species was described from specimens collected by Dr. 

 Burnett and is presumably from the chipmunk as the normal host, 

 although specimens were labeled as from a gull, which must 

 certainly have been due to accidental straggling as stated at time 

 of description. 



