100 MISC. PUBLICATION 5 00, U. S. DEPT. OF AGRICULTURE 



a much narrower head, which is acuminate anteriorly, and by the 

 structure of the movable finger of the male. Paratype male and female 

 specimens of this species have been studied through the courtesy of 

 G. J. Spencer and Gr. P. Holland. 



The Genus Rhinolophopsylla Oudemans 



Rhinolophopsylla Oudemans, 1910, Ent. Ber. 3 : 3. Monotypic. Type, Typhlopsylla 

 unipectinata Taschenberg. 



Head without dorsal incrassations. Frontal tubercle absent. Ventral flaps 

 short and broad, the posterior longer than the anterior. Genal process acumi- 

 nate. Eye vestiges indistinct. Ocular bristle present. Maxilla truncate. Pro- 

 notum with a true comb. Abdomen without combs and without dorsal apical 

 spines. Antepygidial bristles present. Fifth tarsal segment of each leg with 5 

 pairs of plantar bristles, of which the first pair is ventral, the other 4 lateraL 



This genus is represented in North America by but one species. 



Rhinolophopsylla palposa (Rothschild) 



Ceratopsylla palposus Rothschild, 1904, Novitates Zool. 11 : 652. 

 Rhinolophopsylla palposus Wagner, 1936, Canad. Ent. 68 : 206. 



Type host. — "Brown bat." 



Type locality. — Cowicham Demeans, British Columbia. 



Range. — Known only from British Columbia. 



The male of this species has not yet been described. 



The Genus Myodopsylla Jordan and Rothschild 



(Fig. 11, B,C,E) 



Myodopsylla Jordan and Rothschild, 1911, Novitates Zool. 18 : 88. Monotypic. 

 Type, Ceratopsylla insignis Rothschild. 



Frons a wide, clear area without sclerotization. Frontal tubercle absent. 

 Ventral flaps short and broad, the posterior slightly longer and much wider 

 than the anterior. Genal process acuminate. Eye vestiges large. Ocular bristle 

 present. Maxillae truncate. Pronotum with a true comb. Metanotum and 

 abdominal tergal plates I to VII each with a false comb formed by thickening 

 of dorsal bristles. Antepygidial bristles present. Fifth tarsal segment of each 

 leg with 5 pairs of plantar bristles, of which the first pair is ventral, the other 4 

 lateral. 



This genus is represented in North America by four species. 

 Myodopsylla collinsi Kohls 



(Fig. 11, B, E) 



Myodopsylla collinsi Kohls, 1937, Jour. Parasitol. 23 : 300, figs. 1, 2. 



Type host.— "Bats." 



Type locality. — Madera Canyon, Santa Rita Mountains, Santa 

 Cruz County, Ariz. 



Range. — Known only from Arizona. 



The original description of this species is accompanied by four fig- 

 ures of the male and female terminalia. The species may be readily 

 distinguished by the structure of the male terminalia (fig. 11, B). 



