Bishopp — Some New North American Ixodidse. 203 



portion of the groove being 215m; behind the anus the anal groove is 

 nearly straight and strongly divergent: length of anal frame 789 /*. 



Type, Cat. No. 13,975, U. S. National Museum. 



Type host. — Badger ( Taxidea taxvs Schreber). 



Type loculit;/. — Meeteetse, Wyoming. 



A female and male described from a lot of L6 females, 13 males, 9 

 nymphs and 14 larvae collected July 10, L909, by Mr. \V. V. King (Dallas 

 Accession No. 621) for whom this species is named. 



The collection of the Bureau of Entomology contains 1 9 on Thomomys, 

 Walker Pass. Cal., July 1, 1891 (Dr. A. K. Fisher); 2 $ on prairie dog, 

 Sherwood, Texas, November 2, 1906 (F. ('. Pratt); 1 tf, 1 9 on badger, 



1 9 on wolf, 1 9 on skunk, Sabinal, Texas (F. C. Pratt and C. T. 

 Atkinson); 5 J 1 , 5 $ on badger, Fairview, New Mexico, October 2, 1909 

 (E. A.Goldman); 6 <■?', 13 9 on dog, Cedarview, Utah ( W. F.Fishback); 



2 9 on mink, Randlett, Utah (E. P. Ford); 7 9 on dog, Sunnyside, 

 Idaho (E. H. Raymond); 1 9 on Thomomys c. ocius and 1 9 on 

 Perodipus richardsoni, both from Sun, Wyoming (M. Cary); 1 9, Sheri- 

 dan, Wyoming (Cecil Lowman); 1 tf, '2 9, Lost Cabin, Wyoming (Dr. 

 P. H. Shallenberger) ; 1 <$, 13 9 on dog, Hyattsville, Wyoming (J. R. 

 Matthews); 1 9, Mt. Shaw, Montana; four lots, one of which contained 

 both sexes, on dog, Garneill, Montana (H. McLaughlin); 1 9 on a 

 Spermophile, Garneill, Montana (H. McLaughlin); two lots of 1 9 each 

 on dog, Chauteau, Montana (G. M. Carson); two lots of 1 9 each on dog, 

 Conrad, Montana; 1 9, Townsend, Montana ( W. D. Neild); 1 9 on 

 Marmota flaviventer , Florence, Montana (W. V. King). 



The first two lots (from Walker Pass, Cal., and Sherwood, Texas) were 

 placed by Mr. Banks with Ixodes pratti Banks (A Revision of the Ixo- 

 doidea, puis, p. 28). I have examined the type of I. pratti and find it 

 to be distinct from the specimens from Walker Pass, Cal., and Sherwood, 

 Texas. The tooth beneath the rostrum at the base of each palpus is suffi- 

 cient to separate the species. The first coxae spine is shorter in pratti and 

 no posterolateral angles are present on the basis capituli. Mr. Banks' 

 drawings of/, pratti appear to have been made in part from the speci- 

 men from Sherwood, Texas ( /. kingi) as the drawing of the capitulum 

 does not agree with the type. The female from Sherwood was probably 

 drawn on account of the poor condition of the type. 



Ixodes kingi is most closely related to I. cookei, but is readily distin- 

 guished from that species by the following characters: siiorter, more 

 slender legs; smaller capitulum ; much smaller and more widely separated 

 porose areas; distinct lateral carinae; shield more narrowed behind; spine 

 at base of coxae I less than one-half the length of that in /. cookei; stigmal 

 plate much smaller than in cookei . 



In a large number of females of I. kingi the stigmal plate averages 

 294 m x 258/* while in a number of females of cookei, the stigmal plate 

 averages 418/* x 360/*. In kingi the goblets are more widely separated 

 and do not exceed five rows at the widest place, the total number not 

 exceeding 96, while in i". cookei there are seven or eight rows and at least 

 122 goblets per plate. 



