1908.] NATURAL SCIENCES OF PHILADELPHIA, 299 



bristles below; tibia a little longer than the patella, terete, gently- 

 curved; tarsus shorter than the tibia with patella, narrowly ovate, 

 acuminate; bulb simple." 



Locality. — Louisiana. 



I have not found in collections from Louisiana and neighboring 

 States any specimens referable to this species, which remains known 

 only from M. Simon's diagnosis and comments. 



The genus PIBATA Sundevall, 1833. 

 (Subgenus sub Lycosa, Consp. Arachn. p. 24.) 

 Body clothed sparsely with short hairs, in life never cloaking and con- 

 cealing the tegument as is commonly the case in Pardosa and Lycosa. 

 Anterior tibite in the female armed beneath with two pairs of spines, 

 respectively basal and submedian in position, never with an apical 

 pair; these spines veiy long and overlapping, much longer than the 

 diameter of the article; rarely with three pairs beneath, the third pair 

 midway between the median pair and the distal end of the joint; tibiae 

 in the male with the long spines as in the female, but in addition 

 with an apical pair (PI. X, fig. 7). Anterior row of eyes as long as 

 or but little shorter than the second, a little procurved or straight, 

 the eyes subequal or with the median a little larger than the lateral; 

 clypeus rather narrow, the anterior lateral eyes separated from its 

 front margin at most by their diameter, a little farther from eyes of 

 second row; eyes of the second row large, less than their diameter 

 apart; dorsal eye area trapeziform, wider behind than in front. 

 Labium longer than wide, attenuated anteriorly in varying degrees; 

 basal excavation short, nearly always but one-fourth or less the length 

 of the labium, only rarely longer. Posterior spinnerets much longer 

 than the anterior, their second joint distinct and conical. Epigynum 

 presenting no true guide, usually consisting behind of two strongly 

 chitinized lobes or tubercles upon which are the openings of the 

 spermatheca. Bulb of male palpus with no true scopal fold or one 

 but slightly indicated ; conductor as a conspicuous erect apophysis or 

 process, in a mostly medio-apical position, and its principal branch 

 reaching to or extending beyond the front margin of the alveolus ; a 

 basal spur or branch of considerable size always present on conductor; 

 the embolus small, short, nearly concealed usually; lunate plate very 

 large, one- third as long as the bulb. 



S\Ti. — 1848. Lycosa subgen. Potamia C. Koch, Die Araclin., 14, p. 98. 



1876. Pirata Simon, Arachn. Fr. 



1876. Pirata Keyserling, Verh. z. b. Ges. Wien, 26, p. 610. 



1885. Pirata Emerton, Trans. Conn. Acad. Sci., 6, p. 492. 



