128 PROCEEDINGS OF THE NATIONAL MUSEUM. vol. xxix. 



SYNOPSIS OF GENERA. 



A. Labial palpi with less than ten pseudojoints Chaiop.vjlla Kohaut 



A A. Labial palpi with more than ten pseudojoints Vermi]>Hylla Schimkewitsch 



Genus VERMIPSYLLA Schimkewitsch. 



1903. Vermipxylla WA(iNEK, Revue Russe d'Entom., No. 5. 



Genus CH^^TOPSYLLA Kohaut. 



1903. Cha'topsylla Kon.\UT, Magyar, bolhai (May), p. 37. 



1903. Oncupsylla and VerxiipsfiiUa Wahlgren, Archiv fiir Zool., I, July, i:)p. 186 

 and 190. 



1904. Pulicimc part Tiraboschi, Archiv. de Parasit., VIII, pp. 242 and 243. 



The generic groups separated in this paper are groups with a char- 

 acteristic habitus, capable of a fuller definition, which, with fuller 

 material, will be presented later. This separation is also substantiated 

 in part by geographical distribution and host relations. The writer 

 does not believe in the separation of Hea genera on a single character, 

 and that the arrangement of some of the weaker spines, as has been 

 done b}^ Wagner with some of his new genera. So far as the writer 

 or an}" American student is concerned Wagner's genera may stand as 

 he has made them, but should the attempt be made to carr}' out a 

 similar .system among the American fleas, using a single set of unco- 

 ordinated characters, it would necessitate the formation of legions of 

 genera, and would also result in throwing together under single 

 generic names species of otherwise very distant relationships. The 

 characters which Wagner uses are of great taxonomic value in them- 

 selves, however, and should ])0 carefully indicated in every species 

 described, though unfortunatel}- this has not always been done. 



SYNOPSIS OF GENERA. 



A. Leg.s stout and thick set; female with one antepygidial bristle on either side. 

 B. Head without ctenidia. 

 C. Head above sloping obliquely forward, angled in front; segments of abdomen 



each with five to six rows of bristles Goninpsyllus, new genus 



(type, kerguelensis) 

 CC. Head broadly rounded above and in front. 

 D. Labial palpi four-jointed. 

 E. Pronotum without ctenidial spines. 



F. Inner side of hind coxa? distally with a comb of minute teeth. 



Fule.r Linnaeus 

 (type, inilans) 

 FF. Inner side of hind coxpe distally without a comb of minute teeth. 



Bhopalopsyllus, new genus 

 (type, lutzii) 



EE. Pronotum with ctenidial spines Hoplopsyllns, new genus 



(type, anomaltts) 



DD. Laliial jiulpi five-jointed , , .,,.,..... Vnrapi^yllus Enderlein 



(type, longicornis) 



