1908.] NATURAL SCIENCES OF PHILADELPHIA. 171 



1842. Lycosa Hentz (ad. part.), J. Bost. Soc. N. H., 4, p. 22S. 

 1848. Lycosa subg. Leimonia C. Koch, Die Arach., 14, p. 99. 

 . Lycosa subg. Pardosa (noni. preocc), ibid., p. 100. 



1875. Lycosa Hentz. (ad. part.), Sp. U. S., pp. 11 and 24. 



1876. Pardosa Simon, Arachn. Fr., Vol. 3. 



1876. Lycosa Keyserling (ad. part.), Verb. z. b. Ges. Wien., p. 610. 



1877. Lycosa Thorell, Bull. U. S. G. S. Ten-., 3, p. 504 et seq. 

 1885. Pardosa Emerton, Tr. Conn. Ac. Sci., 6, p. 494. 

 1898. Pardosa Simon, Hist. Nat. Araign., 2. 



1902. Pardosa Montgonierj' (ad. part, max.), Proc. Ac. Sci., Phila., p. 536, 



1903. Pardosa Comstock, Classif. of N. A. Spiders. 



1904. Pardosa Chamberlin, Can. Ent., xxxvi, p. 176. 



Pars cephalica moderately narrow, the sides steep, gently declined 

 anteriorly; face elevated, its sides straight and very steep, subvertical. 

 Quadrangle of posterior eyes one-fourth or more the length of the 

 cephalothorax. Seen from above the posterior eyes are at most but 

 very little more than their diameter removed from the margins of 

 pars cephalica (PI. VIII, fig. 2). Chelicerce in the great majority of 

 cases with but two teeth on the upper margin of the furrow, the lower 

 margin with three, of which the third is usually much reduced (PI. 

 VIII, fig. 1). Legs long and especially the metatarsi and tarsi slender. 

 Anterior tarsi scopulate, laterally the median ventral face occupied 

 by a setose band (PI. VIII, fig. 7), posterior tarsi simply setose; 

 metatarsus of fourth leg relatively long, most commonly longer than 

 the tibia + patella (especially so in d^ ) , more rarely of same length 

 or a little shorter ; tibia + patella of fourth legs always longer than 

 the cephalothorax. The color markings frequently due in large part 

 to the arrangement of the pubescence in spots and streaks without 

 corresponding marks in the tegument, such markings', of course, being 

 evident only in the living or dry specimens. The cephalothorax in 

 this genus has always a more or less evident light median stripe of a 

 characteristic dagger form. In nearly all species, although the mark- 

 ings may be much obscured in some, there is on the dorsum of the 

 abdomen a pale basal mark which runs to a point near the middle, 

 each side of the apex and also usually each side of the middle of which 

 is an angular pale spot, having a dark dot at its center; posteriorly a 

 series of such ocellate spots more or less united at the middle line into 

 chevrons. 



Il^ Spiders of small or less commonly of medium size, all characterized 

 by excessive agility. The males are commonly smaller than the 

 females; but do not differ much in coloration. As in Lycosa and other^, 

 genera, however, the anterior legs of the male are often distinguished 

 by some peculiar development of color structure. 



Pardps^s build jio .retreat, wandering about during the cocooning 



