LICE OF GENUS SAEMUNDSSONIA — WARD 85 



8. Paramere 0.28 to 0.30 mm. in length .... snyderi (Kellogg and Paine) 

 Paramere 0.22 to 0.26 mm. in length petersi, new species 



9. Clypeal signature 0.16 to 0.18 mm. in width; 4 to 9 setae on margin of ab- 



dominal sternite VI laticaudata (Rudow) 



Clypeal signature 0.14 to 0.16 mm. in width; 2 to 5 setae on margin of ab- 

 dominal sternite VI brevicornis (Giebel) 



10. Details of endomere and paramere head as in illustrations by Clay (1949, 



figs. 16, 22, 23) sternae (Linn6) 



Details of endomere and paramere head as in illustrations by Clay (1949, 

 figs. 17, 24, 25) lockleyi Clay 



Females 



1. Hyaline anterior margin of head medianly emarginate 2 



Hyaline anterior margin of head not emarginate 3 



2. Width at temples usually less than 0.72 mm.; setae lateral to last abdominal 



sternite, 5 to 7 in number lobaticeps (Giebel) 



Width at temples usually greater than 0.73 mm., setae lateral to last ab- 

 dominal sternite 3 (occasionally 4) in number hopkinsi Clay 



3. Thoracic sternal plate with 2 setae on both the anterior and posterior 



margins 4 



Thoracic sternal plate with setae only on posterior margin 5 



4. Cephalic index less than 1.03; length of abdominal sternite VII (at midline) 



greater than 0.08 mm snyderi (Kellogg and Paine) 



Cephalic index greater than 1.03; length of abdominal sternite VII (at mid- 

 line) 0.06 to 0.08 mm meridiana Timmermann 



5. Sternite VII with posterolateral angles free or partially fused to subgenital 



plate sternae (Linne), lockleyi Clay, 



brevicornis (Giebel), and petersi, new species 

 Sternite VII with posterolateral angles fused to subgenital plate 6 



6. Width at temples greater than 0.63 mm laticaudata (Rudlow) 



Width at temples less than 0.62 mm 7 



7. Width at temples 0.52 to 0.59 mm.; width of clypeal signature 0.12 to 



0.14 mm melanocephalus (Burmeister) 



Width at temples 0.58 to 0.61 mm.; width of clypeal signature 0.14 to 

 0.18 mm parvigenitalis, new species 



Saemundssonia sternae (Linne) 



Pediculus sternae Linne, 1758, p. 616. Hosts: "Habitat in Sternis, Laris." = 

 Sterna h. hirundo Linn6. 



Nirmus fornicatus Olfers, 1816, p. 89. Hosts: "Hab. in laris et sternis." 



Docophorus 5-maculatus Piaget, 1885, p. 9. Host: Hirundo urbica (error) = 

 Sterna hirundo Linne. 



Docophorus melanocephalus Kellogg and Chapman, 1902, p. 20 [nee Burmeister]. 

 Host: S. forsteri (error) = ? S. h. hirundo Linne. 



Philopterus melanocephalus Peters, 1928, p. 225; 1936, p. 17 (part) [nee Bur- 

 meister]. Host: S. h. hirundo Linne. 



Saemundssonia sternae (Linne), Clay, 1949, p. 4, figs. 1-6, 16, 22, 23. Hosts: 

 S. h. hirundo Linn6 and Gelochelidon n. nilotica (Gmelin). 



Tlais species has been adequately characterized by Clay. Material 

 studied from two forms of the Sterninae not available to her seem 

 also to fall within the range of this species. Specimens from Sterna 



