ART. 4 A TICK FItOM THE TEXAS PECCARY :\r( IXTOSH 3 



broad jjosterodorsal i)i'()l(>n<>ati()ii ; <rreatest dimension of plate, meas- 

 ured from anteroventral angle to tip of posterodorsal prolongation, 

 570fi; maximum breadth, taken perpendicular to the aboA'e measure- 

 ment, H40/i,; with a well-developed chitinized frame, broadest on each 

 side of posterodorsal prolongation: macula elliptical, broadest at 

 middle, 240/a long; aperture large; goblets numerous, approximately 

 100, of medium size, larger than in />. rariah'dis^ with smaller gran- 

 ules near margin and on prolongation. Legs (pi. 1, figs. 3-5) ornate 

 dorsally, Avith small punctations and bristles. Coxa I (pi. 1, fig. 6) 

 with two well-developed spurs approximately equal in length, the 

 sharply pointed external spur almost parallel to and well separated 

 from the broad internal spur. Coxae II, III, and IV each with a 

 short well-developed external spur; the internal spur on coxa II 

 marked by a sharp-edged salient ridge; this morphologic feature 

 is less pronounced on coxa III, and there is no indication of an inter- 

 nal spur on coxa IV. Femur IV armed ventrally with five to six 

 teeth, a strong bristle arising at the base of and distal to each tooth; 

 femurs I, II, and III without teeth but with bristles on ventral sur- 

 face. Tibia and metatarsus of leg IV also provided ventrally with 

 bristles and teethlike elevations: similar bristles are present on the 

 other legs, but the elevations are less conspicuous, decreasing in 

 prominence anteriorly. All tarsi with a ventroterminal tooth, an- 

 other tooth immediately proximal to the terminal one ; on tarsus I 

 these two teeth are smaller and more widely spaced; jiroximal to the 

 subterminal tooth are two or three elevations that are less prom- 

 inent than the teeth: bristles present on all tarsi. Capitulum (pi. 1. 

 fig. T) T50/A long (mediodorsal measurement from tip of hypostome 

 to edge of emargination) ; its base 5T0/;i Avide, with whitish mark- 

 ings dorsally; cornua long and pointed; hypostome dentition con- 

 sists of three rows on each side with eight to nine teeth in each row ; 

 palps 470/x long, hairy, short, and broad, with white markings dor- 

 sally, and with articles II and III each about 'iWfx long: article I 

 with 4 to 5 bristles on internal ventral edge, article II with H to 7. 

 and article III with 2 to 3 such bristles. 



Female: When flat and unengorged (fig. 1. ?>), 4.r>i> mm long and 

 2.85 mm wide; when engorged 9 nun long l)y 5.5 mm wide by 3 mm 

 thick; newdy emerged female 4.19 mm h\ 2.14 mm. Body hairy, 

 brownish red, with white on shield, capitulum. and legs; marginal 

 grooves and festoons distinct. Scutum (pi. 1, fig. 8) oval, broadly 

 rounded from the eyes to the apex, and 1.79 mm long by 1.95 nun 

 wide; brownish red with conspicuous white markings, the white 

 consisting of a broad stripe beginning on each side near the apex 

 of the scapular angle and continuing to the apex of the scutum where 

 the stripes unite with each other; on the mesal margin of each cervi- 

 cal groove is a narrow Avhite stripe, these stripes well separated at 



