PULEX. 3 



ovata, capita nitente lavi longiusculo, prothorace nigro-costato, tarsorum 

 omnium articulo primo longissimo. Long. -f lin. 



Much smaller and more compact than P. irritans. Antennae almost 

 lanceolate ; last joint slender. Maxillary palpi slender, filiform. Leys 

 much contracted, with bare femora, and with slightly spinose tibiae and 

 tarsi. Joints of all the tarsi in relation to their comparative length, 

 1, 2, 5, 3, 4. 



The larvae resemble those of P. irritans, but are darker. The eggs 

 are white, globose, and continue about fourteen days. 



On hens, especially in their nests. (E. S. I.) 



4. Felis, Bouche, Nov. Act. Acad. Caes. xvii. 1. 505. 4 (1835). 

 Pallide piceo-fusca, capite nitente laevi postice punctato, facie subtus genis- 

 que ciliis nigro-spinulosis, prothorace nigro-costato, tibiis posticis apice 

 dilatatis, tarsorum anticorum articulo quinto posticorum primo longissimo. 

 Long, -f- lin. 



Almost as large as P. irritans. The whole of the face beneath and 

 the gence fringed with little black spines, which, in the last, have a lateral 

 direction. Fore coxes altogether coarsely punctured. Femora bare, hind 

 pair fringed on the inner side with long bristles. Tibia and tarsi spinose. 

 Joints of the fore tarsi in relation to their comparative length, 5, 2, 1,3,4; 

 of the hind tarsi, 1, 2, 5, 3, 4. 



Infests the cat. (E, S. I.) 



5. Martis, Bouche, Nov. Act. Acad. Cses. xviii. 1. 506. 5 (1835). 

 Piceo-fusca, capite laevi nitente nudo, genis spinulis nigris ciliatis, pro- 

 thorace nigro-costato, tibiis apice dilatatis, tarsorum anticorum articulo 

 quinto posticorum primo longissimo. Long. % lin. 



Darker than P. Felis, which it much resembles, and the joints of the 

 tarsi have the same comparative length ; the clypeus is without spines, and 

 the body is not so thickly covered with bristles as in that species. Fore 

 coxae coarsely punctured ; femora bare, the hind pair fringed with 

 bristles ; tibiae and tarsi with stout spines. 



Infests martens and dogs. (E.) 



6. Sciurorum, Olf. Comm. 48 (1816); Scnr. ; Bouche. Pallide 

 piceo-fusca, nitens, Icevis, capite nudo, prothorace nigro-costato, abdominis 

 lateribus nudis, tarsorum articulo primo longissimo. Long. 1-^- lin. 



Somewhat larger and more elongated than P. irritans. Body smooth, 

 shining. Head bare. Antennae pale yellow, short, obconical. Protho- 

 rax ribbed. Mesothorax almost bare. Femora bare, contracted. Fore 

 tarsi without spines. Hind tarsi shorter than in the other species. 

 Joints of the fore tarsi in relation to their comparative length, 1, 5, 2, 3, 

 4 ; of the hind tarsi, 1, 2, 3, 5, 4. Ungues straight, and so close together 

 as to be apparently but one ; the middle pair somewhat thickened. 



Infests the squirrel. (E. S. I.) 



7. Erinacei, Leach ; Bouche, Nov. Act. Acad. Cass. xvii. 1. 507. 7 

 (1835). Pallide piceo-fusca, capite nitente Icevi, antice nudo, postice 



