1908.] NATURAL SCIENCES OF PHILADELPHIA. 199 



Dorsal line of cephalothorax in profile straight in front of the dorsal 

 furrow, at which it is but slightly depressed. 



Anterior row of eyes shorter than the second in the usual degree, 

 only slightly procurved ; anterior median eyes four-fifths their diameter 

 apart, much closer to the but slightly smaller lateral eyes, their diam- 

 eter from eyes of second row ; anterior lateral eyes fully twdce their 

 diameter from front margin of clypeus, once and a half their diameter 

 from eyes of second row; quadrangle of posterior eyes one-fourth as 

 long as the cephalothorax. 



Margins of furrow of chelicerce armed as usual. Labium wider than 

 long, strongly attenuated, anteriorly trimcated or a little concave. 



Legs with tibia + patella of the fourth pair shorter than the meta- 

 tarsus; tibia + patella of the first pair shorter than the cephalothorax; 

 spines of anterior tibiae as usual, the first two pairs long and overlap^ 

 ping; tarsi clothed in the common manner, 



EpigTjnum clearly wider in front than posteriorly; guide widest 

 anteriorly narrowing caudally, the transverse arms of guide short, the 

 guide plates extending to their ends; lateral ridges but weakly elevated. 

 (PI. XIV, fig. 3.) 



Total length, 8 nun. Length of cephalothorax, 3.7 mm.; width, 

 2.6 mm. 



Length of leg I, 10.2 mm. ; tib- + pat., 3.3 mm. ; met., 2.3 mm. 



Length of leg II, 9.5 mm. 



Length of leg III, 9.3 mm. 



Length of leg IV, 14 mm. ; tib. + pat., 4 mm. ; met., 4.3 mm. 



Male. — Smaller than the female but differing but little in coloration. 

 "The male palpi are long and the joints scarcely enlarged." (PI. 

 XIV, fig. 4.) 



Small specimens are 5 mm. long. 



Syn.— 1877. Lycosa impavida Thorell, Bull. U. S. Geol. Sur. Terr., Vol. 3, 



p. 513. 

 1878. Lycosa tachypoda Thorell, Am. Nat., June, 1878. 

 1885. Pardosa monlana Emerton, Trans. Conn. Acad. Sci., 6, p. 498, PI. 49, 



figs. 5, 5a. 

 1890. lAjcosa xerampelina, Marx, Proc. U. S. N. M., 12. 



. Lycosa impavida, Mavx, ibid.. 



. Lycosa tachypoda, Marx, ibid. 



. Pardosa montana, Mar.x, ibid. 



1892. ? Pardosa ynontana, Banks, Proc. Acad. Nat. Sci. Phila., 44, p. 70. 



1894. Pardosa tachypoda, Emerton, Trans. Conn. Acad. Sci., 9, p. 427, PI. 3, 

 figs. 6, 6a. 



1895. Pardosa impavida, Banks, Ann. N. Y. Acad. Sci., Vol. 8, p. 430. 

 1902. Pardosa tachypoda and montana, Emerton, Common Sp. of U. S., p. 



81, figs. 193 to 196. 

 1902. Pirata procursus Montgomery, Proc. Acad. Nat. Sci. Phila., p. 583, 

 PI. 30, fig. 48. 



