07 



NEW MALLOPHAGA. \) i 



Lipeurus ferox Giebel. (See Kellogg, New Mallophaga, 



I, 18i»G, p. 127, J.!, ix, llgs. 1 and L')- 



One male from the Short-tailed Albatross, Diomedea 

 alljatrw't (Bay of Monterey, California). Previously 

 taken by Kellogg from same host species (same 

 locality). The description and figure which Taschen- 

 berg (Die Mallophagen, 1882, p. 145, pi. v, lig. 1 a) gives 

 for the female of Lipeurus ferox apply in reality, we 

 believe, to the male of Lipeurus densus Kellogg (See 

 Mallophaga from Birds of Panama, Baja California and 

 Alaska, in Xew ^fallophaga, III, I8i»!-', p. 28, pi. iii, 

 fig. 2). 



Lipeurus concinnus n. sj). (Plate \'ll, tig. 2). 



A male and a female from the Short-tailed Albatross, 

 Diomedea ulbatrus (Bay of Monterey, California). A 

 slender, graceful form of the dypeati sutura indistincta, 

 not much resembling any of the Lipeuri hitherto taken 

 on the Albatross. 



Description of the male. Body, length 3. mm., 

 width .53 mm.; slender, pale, with distinct black mar- 

 ginal markings, and brown head and transverse abdom- 

 inal blotches. 



Head, length .65 mm., width .4 mm.: elongate, con- 

 ical, front rounded, four long marginal hairs and one 

 short one before the antennal angle; a long hair, aris- 

 ing from the dorsal surface between the first and second 

 marginal hairs, extends beyond the margin; antennie 

 with segment 1 nearly as longas all the other segments, 

 segment 2 about one-third as long as segment I, seg- 

 ment 3 short, with a dor^^al. angular, distal ap}»endage, 

 segment 5 longer than segment 4, segments 4 and 5 

 and the tip of the appendage of segment 3 light brown, 

 antenme elsewhere uncolored; eyes distinct but not 



