322 AMERICAN AFTER A. 



n. narboroughi Kell. and Kuw., Proc. Wash. Acad. Sci., vol. iv, p. 485, 

 pi. 31, fig. 2, 1902. 



From Sula variegata, new record (Culpepper Id.), A7ious stolidus 

 galapagoensis, new record (Bindloe Id.). 



M. naTigans Kell., New Mall., i, p. 156, pi. 14, figs. 4 and 5, 1896. 

 From Sula variegata, new record (13° N., 103° W.). 



Meiiopon beckii n. sp. 



One female from Phcethon cethereus, Daphne Id. A broad dark 

 form of some similarity to singularis K. and narboroughi K,, de 

 scribed from Galapagos birds, but differs in various noticeable de- 

 tails 



Female. — Body length, 2.4 ram.; width, 1.12 mm.; robust bodied, almost 

 wholly brown. 



Head. — Length .44 mm.; width .85 mm.; the outline of the head is roughly 

 pentangular, the front being roundly obtusely angled in the middle and at the 

 antero-lateral regions; numerous small and some longish hairs scattered along 

 the margin and five long hairs in each temporal angle; color all brown with 

 darker bands and borders. Prothorax with prominent lateral angles and longish 

 hairs all along lateral and posterior margins, color same as head with darker 

 chitinized bands. Meso- and metathoracic segment with lateral margins slightly 

 concave or emarginate at middle indicating line of fusion between the two seg- 

 ments, fourteen short stifle hairs along posterior margin, latero-posterior angles 

 with two longish hairs; color of whole thorax same as head, with a narrow 

 transversal uncolored band along line of fusion of meso- and metasegments, and 

 another along posterior margin of metathorax ; also a thin incomplete median 

 longitudinal uncolored line. Abdomen broadly ovate, completely covered by 

 strong brown transverse blotches, except for the distinct narrow uncolored 

 sutural spaces, these more marked on posterior half of abdomen than on ante- 

 rior half; no 'coma '-shaped darker markings (chitinized bands) as in M. singii- 

 iam K. and M. narboroughi K.. (the rather similar Menopon species already de- 

 scribed from Galapagos birds); a single transverse submarginal row of slightly 

 pustulated hairs across posterior part of each segment, and two to three long 

 weak hairs in each latero-posterior angle; hindmost segment all brown, with 

 even flatly rounded posterior margin. 



W. iiicertum Kell., New Mall., ii, p. 533, pi. 73, fig. 2, 1896. 



From Nesomimus parvalus (Indefatigable Id.), N. melanotis, new 

 record (James Id.), Progne modesta, new record (Indefatigable Id.), 

 Sterna fuliginosa, new record (Bindloe Id.), 



M. rusticum Giebel, Jus. Epiz., p. 288, 1874. 



From Progne modesta, new record (Indefatigable Id.). 



