NEW MALLol'llAOA. 117 



Sj)ecimeiis from an American Eared Grebe, Cuhjiniun 

 riiijricoUis califvrnicus (Bay of Monterey, California); 

 from the Western Grelie, jEchnwjihurus occUlentalis (one 

 bird from \Vasliin*,fton, and one from California); and 

 from tlie Californian Clapper Rail, Rallus obsoletus 

 (three birds), and the Vir<j;iuia Kail, Rallus virginianus 

 (Palo Alto, California). Taken previously by Kelloj^g 

 from the two hosts tirst named, and from Urinator 

 Iwinme (California). 



Menopon infrequens Kellogg. 



New .Mallophii;.;a, I, 1896, p. Ifil, pi. xv, fig. 5. 



Ten specimens from Larus deleicavensis (Bay of Mon- 

 terey, California). Described from a single female from 

 Larus glaucescens (Bay of Monterey, California). The 

 male is much smaller than the female, as shown by fol- 

 lowing measurements: body, length 1.4 mm., width 

 A) mm.; head, length .25 mm., width .53 mm. 



Menopon irrumpens n. sp. (Plate \111, lig. 1). 



Four specimens from a Short-tailed Albatross, Diome- 

 dea albatvHs (Bay of Monterey, California). No Mrno- 

 pon has been hitherto taken from an Albatross. 



Description of female. Body, length 2.23 mm.; width 

 1.01 mm.; short, broad; dark chestnut-brown with 

 darker blotches ou the head and lateral bands on thorax 

 and abdomen. 



Head, length .4 mm., width .74 mm.; wide through 

 the temples: clyiieus broad, with a slightly angulated 

 front; one rather long and one shorter marginal hair 

 each side of the angular point of the clypeus, a short 

 prickle near the suture; three long marginal hairs on 

 the slight swelling in front of the ocular cmargination, 

 two short hairs in front of these, nearer the suture; 



