FAMILY DOLICHOPSYLLIDAE BAKER 



1905 Dolichopsyllinae Baker, Proc. United States Nat. Mus., 29:127. 



1909 Dolichopsyllidae Oudemans, Nov. Zool., 16: 156. 



1915 Ceratophyllidae Rothschild, Ent. Mo. Mag., 51:58. 



1926 Ceratophyllidae Dampf, Ent. Mitt., 15: 380. 



1929 Dolichopsyllidae Ewing, Manual External Parasites, p. 165. 



1936 Ceratophyllidae Wagner, Tierwelt Mitteleuropas, Bd. 6, Abt. 17, s. 4. 



In this family there are two or more rows of bristles on each 

 abdominal tergite. The eye is well developed except in Conor - 

 hinopsylla and Foxella where it is vestigial. A pronotal 

 ctenidium is present in all cases except in Rhopalopsyllus and 

 Trichopsylla where both the genal and pronotal ctenidium are 

 absent. Two genera, Ctenophthalmus and Rectojrontia are 

 armed with both a pronotal and a genal ctenidium. 



This family is the largest in our fauna and in the East is rep- 

 resented by fourteen genera which are rather difficult to 

 separate. Until 1933 many of the separate genera now recog- 

 nized were included in the complex Ceratophyllus. The name 

 Ceratophyllus is now limited to a large group whose members 

 are normally parasitic only on birds. 



Key to the Eastern Genera of Dolichopsyllidae 



1. Pronotal ctenidium absent 2 



Pronotal ctenidium present 3 



2. Ocular row consisting of three bristles Rhopalopsyllus, p. 30 



Ocular row consisting of four bristles Trichopsylla, p. 32 



3. Genal ctenidium present 4 



Genal ctenidium absent 5 



4. Genal ctenidium horizontal Ctenophthalmus, p. 34 



Genal ctenidium vertical Rectojrontia, p. 38 



5. Eye rudimentary 6 



Eye well developed 7 



6. Pronotal ctenidium consisting of about ten slender spines on a 



side Foxella, p. 39 



Pronotal ctenidium consisting of six broad spines on a side 



Conorhinopsylla, p. 41 



7. Labial palpus extending beyond the apex of the fore coxa by about 



a segment 8 



Labial palpus not extending beyond the apex of the fore coxa or 

 extending only slightly beyond 9 



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