Female characters may be difficult to determine satisfactorily 

 in greatly engorged, preserved specimens. Coxa I has two well- 

 defined sptirs discernably separated by a narrow but deep, inverted 

 V-shaped cleft. Palpal segment one ventrally has an internal knob 

 bearing one or two bristles; these bristles may be broken or obs- 

 cured by crowding in preserved, engorged material. The scutinn 

 rarely may be approximately as broad as long, but more commonly 

 is slightly longer than broad; the scutal margin, anterior of the 

 eye, curves very slightly outwards. The hypostome formula is as 

 in the male. &igorged individuals may reach 12.0 ram. or more in 

 length and about 8.0 mm. in width. The normal slatish color of 

 the engorged female and the blioe of the nymph gives this tick its 

 common name. Most specimens in my collection contrast with the 

 usually paler females of the other two boophilids. 



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