New England hosts: 

 Falco peregrinus Tunstall — Peregrine Falcon. 

 Faloo columbavius Linnaeus — Pigeon Hawk. 



Inner edge of marginal carina not or slightly indented medially; 

 ventral suture variable in form, does not reach anterior margin of 

 head. Tergites II-III with median indentation, that of III occasional- 

 ly partly occluded; tergites of segment IX in male present as 2 well 

 marked sclerites; penial sclerite absent. Female with tergites IX-XI 

 fused with a continuous unsclerotized area around the 2 setae on each 

 side. Genital plate differs from all other species in North America 

 in having a central posterior prolongation. 



Measurements : D. rufa vufa from Falco tinnunoulus 

 (from Clay, 1958) 



(Mean) d ? 



Collector 



2 ?, 2cf Falco peregrinus Lincoln, Me. Jan. -June, 1941 W.J.Clayton 



A subspecies of D. rufa, Degeeriella rufa aarruthi Emerson, 1953, 

 is found on the Sparrow Hawk, Faloo sparverius Linnaeus. 



This subspecies has a narrower preantennal region, the anterior 

 margin sometimes being rather pointed, but this character may be absent. 

 In the male there is only 1 seta on each side of the ventral endo- 

 meral arm instead of 2 as in D. rufa rufa. 



Specimens Host Locality Date Collector 



1 c" Falco sparverius Epsom, NH VIII-19-1964 J.E.K. 

 1 cf " " Litchfield, NH VIII-25-1964 J.E.K. 



FALCOLIPEURUS 



Falcolipeurus Bedford, 1931. Rept. Vet. Res. S. Africa, 17: 290. 



Type species: Esthiopterum secretarium (Giebel, 1874). 

 Trollipeurus Zlotorzycka, 1963. Ang. Parasit., 4: 3. 



Genotype: Trollipeurus eichleri Zlotorzycka, 1963 (A synonym of 

 Falcolipeurus marginalis (Osborn, 1902). 



102 



