26 MISC. PUBLICATION 5 0, U. S. DEPT. OF AGRICULTURE 



Odontopsyllus spenceri Dunn 



Odontopsyllus spenceri Dunn, 1923, U. S. Pub. Health Serv. Rpts. 38 :. 2765-2766. 



Type host. — Lepus oairdii Hay den (snowshoe rabbit). 



Type locality. — Bitterroot Mountains west of Hamilton, Mont. 



Range. — Known only from Montana. 



A rare flea and apparently not yet figured. According to the orig- 

 inal description the male "is close to the male described as dentatus 

 by Baker, differing from it mainly by having more bristles in the 

 upper genal row and on the dorsal surface of the ninth sternite." 



The Genus Delotelis Jordan 



Delotelis Jordan, 1937, Novitates Zool. 40: 267. Monotypic. Type, Cerato- 

 phyllus telegoni Rothschild. 



Material not being at hand for the description of this genus, the 

 original description by Jordan is quoted in full : 



$ 9 . Like Catallagia Roths. 1915 ; but frons with three rows of bristles 

 (2, 3, 7, or 1, 4, 7) and additional small bristles, some of which are placed 

 below vestigial eye ; stigma-cavity of tergum VIII narrow ; hindtarsal segment 

 V with one ventral bristle in between first lateral pair. In $ abdominal 

 sternum VIII with dense apicimarginal row of bristles; process P of clasper 

 much shorter than movable digitoid F. In $ duct of bursa copulatrix short ; 

 orifice of body of spermatheca terminal, apex of tail of spermatheca obliquely 

 truncate. 



This genus contains but a single species. 



Delotelis telegoni (Rothschild) 



Ceratophyllus telegoni Rothschild, 1905, Novitates Zool. 12: 172, pi. 9, figs. 27 



and 30. 

 Delotelis telegoni Jordan, 1937, Novitates Zool. 40: 267. 



Cotype hosts. — Microtias drummondii (Aud. and Bach.) (meadow 

 mouse) and Evotomys gapperi (Vigors) (red-backed mouse). 



Cotype localities. — Horse Creek, Upper Columbia Valley, British 

 Columbia, and Kicking Horse Canyon, Alberta. 



Range. — Known from Alberta and British Columbia. 



In the original description of this species it was compared several 

 times with charlottensis, now Catallagia charlottensis (Baker), with 

 which it was said to be closely related. The two species evidently 

 are very different, since they are now placed in different genera by 

 Jordan. 



The Genus Catallagia Rothschild 



(Fig. 5, C) 



Catallagia Rothschild, 1915, Ectoparasites 1: 41. Type, Pulex charlottensis 

 Baker (by original designation). 



Frontal tubercle small to vestigial, frequently completely concealed in frontal 

 notch. Forehead with 2 rows of lateral setae, none of which is spiniform. 

 Eyes vestigial. Labial palpus not reaching apex of coxa I, 5-segmented. Post- 

 antennal region of head with 3 rows of setae. Pronotal comb with usual long, 

 dark-brown spines, which are either narrowly rounded or angulate at apex. 

 Coxa III with a row or patch of spinelets on inner surface ; last segment of 

 posterior tarsus with 4 pairs of lateral plantar bristles. Abdomen with apical 

 spines which do not extend down to near level of spiracles. Tergal plate VII 

 without posterior median process. Antepygidial bristles 3 on each side of 



