GENUS H.EMAPHYSALTS KOCH. 33 



Table of the Species. 



Shield of female as broad as long; palpi very heavy and short chordeilis. 



Shield of female longer than broad: palpi more slender leporis-palitstris. 



Hsemaphysalis leporis-palustris Packard. (PI. X, figs. 2, 6.) 



Female. — Red-brown to black; shield, mouth parts, and legs red- 

 brown, without markings. Capitulnm (PI. IV, fig. 10) not twice as 

 broad as long, hind angles slightly prominent, porose areas elongate, 

 separated by much more than their width, a ridge on the outer side of 

 each ; palpi rather elongate, second joint with a sharp projection on 

 the outer side at base; the inner tip is inflated above, or rather its 

 ui^per edge; the third joint also has a lamellar edge above projecting 

 over the hypostome, and below there is a row of hairs on the second 

 joint (PI. X, fig. 2) ; the rostrum below has a distinct spine at each 

 hind angle. Shield (PI. IV, fig. 10) plainly longer than broad, with 

 many large punctures above, and the submedian grooves very large 

 and deep. Legs rather slender, the tibia? and metatarsi I (PL IV, 

 fig. 10) and II are convex below; trochanter I has a large projection 

 above, and II and III have projections behind, when seen from be- 

 low; coxa I (PL IV, fig. 10) is bifid behind, the basal projection the 

 longer; other coxae each with a very small projection; all coxte have a 

 number of long hairs. Abdomen striate, and with many deep punc- 

 tures. The stigmal plate (PL IV, fig. 10) is as broad as long, with 

 many rather large granules. 



Length of female shield, 0.9 mm. 



Male. — Paler red-brown; capitulum (PL IV, fig. 8) rather narrow, 

 its posterior angles very distinctly prolonged; palpi shorter than in 

 the female, but the inner sides inflated above as in the female; body 

 nearly twice as long as broad, lateral grooves distinct, but no basal 

 furrow to the eleven festoons; dorsal surface rather densely and 

 evenly punctate. The legs are as in the female, and the coxne armed 

 the same, coxa I being rather more strongly bifid behind ; the rostrum 

 shows below the two small teeth behind as in the female. The stig- 

 mal plate is subtriangular, as broad behind as long, its surface rather 

 coarsely granulate. 



Length of male, 1.6 nnn. 



The nymph has the shield fully as long as broad, and broadly 

 rounded behind. 



Specimens come from Virginia; Shreveport, La.; Columbus and 

 Victoria, Tex., Grand Canyon, Ariz.; Kern County, CaL; Maver- 

 ick, Tex. ; Keene Valley and Dannemora, N. Y. Packard's types were 

 from Xorth Carolina. It is usually found on rabbits, but the young 

 are often taken from birds, as quail, lark, etc. 



