IXODES SCULPTUS NEUMANN. 31 



rather large, elliptical, its surface minutely granulate; all cox?e (PI. 

 IV, fig. 9) with a small apical tooth behind, and coxa I with a long 

 basal spine; legs rather long, not very hairy, and the tarsi abruptly 

 narrowed near tip, tarsus I but little longer than the metatarsus. 



Length of female shield, 1.4 mm. 



The type, in the Marx collection, is from the Santa Cruz Mountains, 

 California. I have also seen two females from Del Rio, Tex., on 

 rock squirrel (Bishojjp), which agree closely with the type, except 

 that the color is darker, the shield being dark red-brown, and the 

 abdomen nearly black. They are engorged, and the abdomen is 

 elongate. 



Ixodes hexagonus Leach. 



Female. — Capitulum and shield yellowish brown; legs and palpi 

 paler; abdomen grayish yellow. Capitulum (PI. Ill, fig. 13) rather 

 elongate, hind angles slightly produced, porose areas large, subtri- 

 angular, as long as broad, and scarcely half their diameter apart; 

 palpi short, second joint only a little longer than broad, last not as 

 long as broad. Shield (PL III, fig. 13) about as broad as long, taper- 

 ing behind, the anterior sides quite long, no trace of lateral caringe, 

 surface rather evenly and densely strewn with quite large punctures. 

 Abdomen striate, when engorged elongate; punctures and hairs very 

 weak ; anal grooves subparallel ; stigmal plate moderately large, 

 nearly oval, the stigma in front of middle, its surface strongly granu- 

 late. Coxse (PI. Ill, fig. 11) with a minute black tooth at apex be- 

 hind, and coxa I with a very short spine at base. Legs moderately 

 large, hairy; tarsi tapering to tip, tarsus I but little longer than the 

 preceding joint. 



Length of female shield, 1.2 mm. 



Two specimens in the Marx collection from sheep, Kansas, and 

 labeled by Neumann as typical /. hexagonus. Possibly they were 

 introduced with the sheep. Also two specimens in the Hassall col- 

 lection from rabbit, Baltimore^ Md., labeled by Neumann as typical 

 /. hexagonus. The specimens in the same collection from spermo- 

 phile, District of Columbia, and pocket gopher, Iowa, also labeled 

 by Neumann as /. hexagonus., are not that species, but the /. eookei 

 Packard {longispinosiis Neum.) The four females from the United 

 States agree quite closely with a German specimen in the Marx col- 

 lection, labeled by Neumann /. hexagonus; but the porose areas in 

 the European specimen are more pointed in front, and the shield 

 is rather more coarsely punctate and wrinkled. 



I have not seen a male from the United States, and both cases of 

 the species' occurrence may be importations. Nearly all the previous 

 records of this species in this country refer to /. eookei. 



