LICE OF GENUS SAEMUNDSSONIA — WARD 91 



Female: Sternite VII free or partially fused to subgenital plate. 

 May not be reliably separated from sternae, lockleyi, or brevicomis. 



Table 2. — Dorsal chaetotaxy of Saemundssonia petersi, new species. (Specimens 

 from Sterna fuscata crissalis, S. f. oahuensis, and S. f. fuscata are included.) 



Pterothorax 

 Abdomen II 



III 



IV 



V 



VI 



VII 



Type material : All specimens in the type series are from the sooty 

 tern (Sterna f. fuscata Linne). 1 cf (holotype, USNM 62280) and 19 

 (allotype), Bahama Islands, North Elbow Cay, Cay Sal Bank, H. S. 

 Peters, coll. (USNM, Bishopp No. 15009). Paratypes as follows: 

 2c^(^ and 299, above locality and coll. (USNM, Bishopp Nos. 

 15009-10); 12 6^6^ and 1199, British West Indies, Caicos Islands, 

 Six Hills Cay, H. S. Peters, coll. (USNM, Bishopp Nos. 15211-12, 

 15221); 19, Virgin Islands, St. Thomas (CNHM). 



Other material examined: 19 ex Sterna fuscata oahuensis Bloxham, 

 Hawaii, Mokii Mami, off Oahu, L. Kartman, coll. (USNM); 1 cT and 

 19 ex above host, Laysan Island, Tangier Exped., coll. (BPBM). 

 Icf and 19 ex Sterna fuliginosa (=S. fuscata crissalis (Lawrence)), 

 Clipperton Island (SNHM, Kellogg No. 1060b); IcT ex Nesominus 

 macdonaldi (error) (^S. fuscata crissalis), Galapagos Islands, Gardner 

 Island (SNHM, Kellogg No. 991); Id' ex S. fuliginosa {=S. fuscata 

 crissalis), Lat. 1° N., Long. 93° W., R. Beck, coll. (SNHM, Kellogg 

 No. 1463c); 1 cf ex Solpinctes guadalupensis (error) (= Sterna fuscata 

 crissalis), Guadalupe Island (SNHM, Kellogg No. 1083b); 2c?'cf and 

 399 ex Anous stolidus galapagensis (error) {= Sterna fuscata crissalis), 

 Galapagos Islands, off Culpepper Island, R. Beck, coll. (SNHM, 

 Kellogg No. 1438a) ; 1 cf and 299 ex Anous stolidus (error) {=Sterna 

 fuscata crissalis), R. Beck, coll. (SNHM, Kellogg No. 1484b). 



This species is named in honor of H. S. Peters, who has carefully 

 collected and mounted many of the specimens studied in this paper^ 



Saemundssonia snyderi (Kellogg and Paine) 



Decophorus snyderi Kellogg and Paine, 1910, p. 124, figs. 1, 2. Host: Sterna 



lunata Peale. 

 Saemundssonia snyderi (Kellogg and Paine), Thompson, 1948, p. 199 (part). 



Host: Sterna lunata Peale. 

 Male: Head width is similar to that of petersi. Dorsal chaetotaxy 

 also as in petersi. As in meridiana, the thoracic sternal plate has 

 both anterior and posterior setae in both sexes. In some cases, how- 

 ever, only one anterior and two posterior setae are present. Gen- 



338377—55 2 



