THE CANADIAN ENTOMOLOGIST. 21 



Head evenly rounded from occiput to mouth ; maxilhi' large, curved, pro- 

 jecting downward and backward ; abdomen of pregnant female worm- 

 like, sutures distinct Rhynchopsylia. 



Genus Sarcopsyi/a, Westwood. 

 1836-40. Westwood, Trans. Ent. Soc. . London, II., p. 199. 



Table of Species. 



Hind angles of metathoracic scales rounded ; eyes and antennte in 



anterior half of head, which is acutely angled in front above ; first 



four tarsal joints in foreleg longer than broad ; length (free female, 



'and male), i mm. ; parasitic on mammals penetrans. 



Hind angles of metathoracic scales angulated ; eyes and antennae in 

 posterior half of head, which is obtusely angled in front above ; first 

 four tarsal joints in forelegs nearly as broad as long; length, i-i. 5 mm.; 

 parasitic on gallinaceous birds gallinacea. 



Sarcopsylla penetrans^ L. 



1767. Linne, Syst. Nat. Ed., XII., p. 1021. (Pulex penetrans.) 

 This flea is undoubtedly found throughout the tropical and sub- 

 tropical regions of both hemispheres. It has been found on a great 

 variety of mammalian animals, including man. It is commonly known 

 in this country and South America as "jigger flea," ''chigoe," or 

 " chique." 



Sarcopsylla gallinacea, Westwood. 



1874-5. Westwood, Ent. Mo. Mag., XL, p. 246. 



This species will probably eventually be found to occur throughout 

 the range of S. penetrans. I have received specimens taken on chickens 

 (through Mr. L. O. Howard) from the Department collection, as follows: — 

 From Florida, Apr. 27, No. 6220, A. S. Packard ; from Floresville, Texas, 

 No. 3648 ; from Hockley, Texas, Jan. 30, 1894, No. 3648 ; from Meridian, 

 Miss., No. 4053. 



The genital organs in the male of this species differ quite widely from 

 those of the male of S- penetrans. 

 Sarcopsylla grossivetitris, Weyenberg. 



1879 Weyenberg, Boletin de la Acad. Nat. de Ciencias d. i. 



Repub. Argent., III., p. 188. (Pulex grossiventris.) 



This is a Sarcopsylla and a good species, but was insufticiently 

 described. The very large size (length of male, 2.5-3.25 mm.; of pregnant 



