NEW MALLOPHAGA. 9 1 



near the apex, all along the posterior margin of the tri- 

 angle ; segment i with one pustulated hair near the mid- 

 dle, and segment 7 without hairs; segment 8 with narrow 

 curving, transversal, nearly continuous brown band, and 

 segment 9 wholly colored but paler; outer margin of each 

 triangle broadly black, producing black lateral abdominal 

 bands; posterior margin of segment 9 flatly rounded, with 

 about ten longish hairs; segments 3—7 with one to three 

 longish hairs in posterior angles; genitalia extending for- 

 ward to third segment, and posterior pincer-like portion 

 very strong. 



Female. Body, length 1.8 mm., width .78 mm. ; head, 

 length .53 mm., width .53 mm. ; pustulated hairs of meta- 

 thorax at subequal distances apart; triangular blotches of 

 abdomen not projecting so far inwardly, and with but 

 two pustulated hairs; segment 8 wholly colored; segment 

 9 very small, uncolored, with two small lateral blotches, 

 posterior end truncate, and with one short spine at each 

 posterior angle ; genital blotch on ventral face of seg- 

 ments 6-7, transverse anteriorly, with two posteriorly 

 projecting pointed processes. 



Docophorus kansensis n. sp. (Plate iii, fig. 8.) 



A single female specimen taken from an American 

 Eared Grebe, Colymbus nigricollis calif ornicus (Law- 

 rence, Kansas). The new form somewhat resembles 

 colymbinus (Piaget, Les Pediculines, 1880, p. 117, pi. x, 

 fig. 5, from Colymbus septentrioualis) , especially in the 

 shape and markings of the head; but the well-defined and 

 characteristic abdominal markings are very different from 

 the abdominal markings of colymbinus. 



Description of female. Body, length 1.6 mm., width 

 .64 mm.; pale gqlden brown, with darker, narrow, tho- 

 racic borders and short, lateral, triangular, abdominal 

 blotches bearing a few, long, pustulated hairs. 



