April,1919 Bulletin of the Brooklyn Entomological Society. 49 
NEW SPECIES OF NORTH AMERICAN SIPHONAPTERA. 
By Epwarp A. Cuapin, Washington, D. C. 
The insects here described represent the bulk of the indeter- 
minate material that has come to the attention of the author dur- 
ing the past three years. The interest in Siphonaptera is gradu- 
ally growing and much more attention is being given to the ecto- 
parasites of our wild animals. Owing to the difficulties attending 
the gathering of fleas from birds, there are practically no bird 
fleas known from North America, but it is hoped that this defi- 
ciency in our knowledge will be satisfied in the near future. 
In his classification of the fleas, Oudemans* places the genus 
Spilopsyllus Baker in the family Neopsyllide, as the type of a 
separate subfamily, the Spilopsylline. The genus Hoplopsyllus 
Baker is not placed in the table at all. In order to place Spilop- 
syllus with the Neopsyllide, the antenna is characterized as long 
(“Clava lang”). This is certainly not the case in the antenna 
of the female and if the condition obtaining in the antenna of the 
male of a Neopsylla is taken into consideration, the male antenna 
of Spilopsyllus can not be called elongate. Therefore, I would 
relegate the genus to the family Archeopsyllide, near Cteno- 
cephalus Kolen. The habitus of the genus Hoplopsyllus would 
cause it to be placed nearby. These three genera might be sepa- 
rated in the following manner. 
Cephalic ctenidia lacking, pronotal ctenidium present, III coxe with a 
CombpoOkyspiNes) OM Hepner GiGek a senice neat a Hoplopsyllus Baker. 
Cephalic ctenidia present. 
Club (third segment) of antenna incompletely segmented, that is, the 
segmental sutures are evident only on the posterior face. 
Ctenocephalus Kolen. 
Club of antenna with segmental sutures running completely around 
CHET Ora Ne reel uRib ere ate ope els Eh Gat Gh bs Spilopsyllus Baker. 
*“ Neue Ansichten uber die Morphologie des Flohkopfes, sowie tiber 
die Ontogenie, Phylogenie und Systematik der Flohe,” Nov. Zool., XVI, 
133-158, 1900. 
