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



Range. — Known only from Idaho. 



This species is based upon a single female which has not yet been 

 associated with its opposite sex. According to Jordan (40, p. 29) 

 it is very closely allied to nepos (Rothschild) and caedens (Jordan). 

 I. Fox (26, pi. 19, -fig. 7) gives a detail drawing of sternal plate VII 

 of the female. 



Orchopeas latens (Jordan) 



Ceratophyllus latens Jordan, 1925, Novitates Zool. 32: 105, figs. 19 and 20. 

 Orchopeas latens Jordan, 1933, Novitates Zool. 39: 72. 



Type host. — "Gray squirrel." 



Type locality. — Santa Cruz County, Calif. 



Range. — Known only from California. 



Jordan's description of this species was based on one male and 

 two females from the Baker collection. It is accompanied by a 

 drawing of the clasper of the male and one of sternal plate VII of 

 the female. 



Orchopeas leucopus (Baker) 



Ceratophyllus leucopus Baker, 1904, U. S. Natl. Mus. Proc. 27 : 401. 

 Ceratophyllus aeger Rothschild, 1905, Novitates Zool. 12: 166, pi. 6, figs. 5, 7, 



and 9. 

 Orchopeas leucopus Jordan, 1933, Novitates Zool. 39 : 72. 



Type host. — Peromyscus leucopus (Raf.) (white-footed mouse). 



Type locality. — Peterboro, X. Y. 



Range. — Eastern part of the United States and Canada. 



The original description of this species, one of the most common 

 and one of the best known fleas in America, was based upon a single 

 female. Orchopeas leucopus is very near O. howardii (Baker) but 

 the clasper has a broad, truncate process and a more slender movable 

 finger. I. Fox (25, pp. 64 and 159) has redescribed and figured the 

 species. 



Orchopeas nepos (Rothschild) 



Ceratophyllus nepos Rothschild, 1905, Novitates Zool. 12: 168, pi. 7, figs. 13 



and 14. 

 Orchopeas nepos Jordan, 1933, Novitates Zool. 39 : 72. 



Type host. — Spilogale phenax latifrons Merr. (spotted skunk). 



Type locality. — Chilliwack, British Columbia. 



Range. — Known only from British Columbia. 



The original description of this species was based on one male and 

 one female. It is accompanied by drawings of part of the ter- 

 minalia of the female and a side view of the male claspers. The 

 species is closely related to howardii (Baker) but differs from that 

 species in that the process of the clasper is rounded and not expanded 

 apically instead of being truncate and expanded ; also the distal half 

 of the movable finger is not nearly so swollen as in howardii. 



Orchopeas sexdentatus sexdentatus (Baker) 



(Fig. 7, C) 



Ceratophyllus sexdentatus Baker, 1904, U. S. Natl. Mus. Proc. 27: 403, pi. 26. 



figs. 8-14. 

 Orchopeas sexdentatus Jordan, 1933, Novitates Zool. 39 : 72. 



