Head longer than wide with narrow, long dorsal anterior plate 

 bearing a caudally pointed projection and 2 angled projections on 

 either side of the midline. Genital plate of male narrow and elon- 

 gated with 2 long setae centrally in the anterior portion. Genital 

 plate of female rectangular in shape with sparsely scattered small 

 setae. Terminal abdominal segment of female bilobed. 



Measurements: Stvigiphilus aautifrons Emerson, 1961 

 (from Emerson, 1961) 



d 9 



Head Length 

 Head Width 

 Prothorax Width 

 Pterothorax Width 

 Abdomen Width 

 Total Length 



Specimens Host Locality Date Collector 



3 9 , 3 cf Bubo virginianus Lincoln, Me. Jan. -June ,1941 W.J.Clayton 



Stngiphilus barbatus (Osborn, 1902) 



Docophorus barbatus Osborn, 1902. Ohio Nat., 2: 201, pi. 14, 



fig. 1. 

 Neodooophorus asionis Eichler, 1949. Beitr. Tax. Zool., 1: 12, 



pi. 1, figs. 1-12. 

 Type host: Asio otus (Linnaeus) — Long-eared Owl. 



Head narrowed in front of antennae, the margin slightly concave; 

 dorsal anterior plate long, narrow posteriorly; antennae small, 

 similar in the 2 sexes. Prothorax quadrate with anterior angles 

 rounded and posterior angles nearly rectangular; posterior margin 

 slightly convex, with 1 long seta in each posterolateral angle. 

 Abdomen elongate-oval. 



Osborn described this species from the Rusty Blackbird collected 

 in Nebraska. The host designation was in error as indicated by 

 Emerson (1955b) who examined cotypes of this species which agrees with 

 other material taken from Asio otus. 



Stvigiphilus aeblebraahys (Denny, 1842) 



Pedioulus strigis 0. Fabricius, 1780 {nee Pontoppida, 1763). 



Fauna Groenlandica: 216. 

 Docophorus aeblebraahys Denny, 1842. Mon. Anopl. Brit.: 45 and 



92, pi. 1, fig. 3. 

 Type host: Nyctea saandiaoa (Linnaeus) — Snowy Owl. 



Head wider than long, flatly rounded in front. Dorsal anterior 

 plate short and broad, wider than long, pointed posteriorly; eye with 

 long seta arising dorsally; temporal carina darkly pigmented. Pro- 

 thorax small, with a single long seta on each lateral margin; proster- 

 nal plate with 2 long setae. Pterothorax with 16 long setae on the 

 posterior margin. Abdomen robust, with well marked pleural plates. 



156 



