THE FLEAS OF XORTH AMERICA 111 



Range. — Southwestern part of the United States. 

 The original description of this species, although based upon a 

 series of specimens, is very short and unaccompanied with drawings. 



Cediopsylla (Acediopsylla) inaequalis interrupta Jordan 



Cediopsylla inaequalis interrupta Jordan, 1925, Novitates Zool. 32:103. 



Gotype hosts. — Sylvilagus bachmanni (Waterh.), and "fox." 

 Gotype localities. — Palo Alto, San Francisco, and Claremont, 



Calif. 

 Range. — Known only from California. 



The short original description of this variety, which is based on 

 both sexes, follows : 



Genal comb usually with 6 or 7 spines, sometimes 5. Row of long bristles at 

 ventral margin of ^-clasper divided into a proximal group of \ 4 to 6 and a 

 distal group of 2 or 3. 



The Genus Callistopsyllus Jordan and Rothschild 



Callistopsyllus Jordan and Rothschild, 1915, Ectoparasites 1 : 46. Type, Cera- 

 tophyllus terinus Rothschild (by original designation). 



Genal comb absent. Eye vestigial, halfmoon shaped. Labial palpus 4-seg- 

 mented. Antennal groove not extending upward across vertex; second antennal 

 segment widened on outside covering a third of club. Pronotal comb composed 

 of many spines. Hind coxa without a row or patch of spinelets on inner surface. 

 Femora without lateral setae. Segment V of each tarsus with 5 pairs of lateral 

 plantar bristles, the first being displaced ventrally. Abdomen with a few 

 apical spines which are confined to first 3 terga. Sternum VIII of female angulate 

 posteriorly and bearing a marginal, apical row of very short micro-setae 



This genus includes but two species, one of which is known only by 

 the female sex. The presence of apical spines on the abdomen indicates 

 a relationship with Dolichopsyllidae and Hystrichopsyllidae. 



Callistopsyllus deuterus Jordan 



Callistopsyllus deuterus Jordan, 1937, Novitates Zool. 40 : 266, fig. 49. 



Type host. — Peromyscus sp. (white-footed mouse). 

 Type locality. — Big Bear Lake, Calif. 

 Range. — Known only from California. 



The original description of this species was based upon a single 

 female and is accompanied by a drawing of the female genitalia. 



Callistopsyllus terinus (Rothschild) 



Ceratophyllus terinus Rothschild, 1905, Novitates Zool. 12 : 158, pi. 8, fig. 26 and 



pi. 9, fig. 29. 

 Callistopsyllus terinus Jordan and Rothschild, 1915, Ectoparasites 1 : 46. 



Type host. — Citellus columbianus (Ord) (ground squarrel). 

 Type locality. — Mabel Lake, British Columbia. 

 Range. — Known only from British Columbia. 

 This species is known only from female specimens. 



