212 PROCEEDINGS OF THE ACADEMY OF [May, 



below; the tibia and patella of the fourth legs taken together are always 

 considerably longer than the cephalothorax. The median light band 

 of the cephalothorax widens uniformly from behind for^^•ard to the 

 eyes; it is constricted in front of dorsal groove, but otherwise its 

 margins are nearly straight. The abdomen in all is marked above by 

 a broad light band which is nearly or fully as wide as the dorsum and 

 which extends over its entire length from base to spinnerets ; this band 

 enclosing at base a lanceolate outline, and behind in some also a series of 

 transverse angular lines of varying degrees of distinctness; sides of 

 abdomen dark in color, black at least across anterior lateral angles; 

 venter pale. 



Spiders of medium or small size. The males are but little different 

 in size from the females, but are sometimes characterized by having the 

 tibiae of the front pair of legs darkened in color and densely clothed 

 with long black hair which stands out in brush-like form. 



The cocoon is spherical, without any seam at equator, and is white 

 in color. 



Key to Species. 



Females. 



1. Sternum yellow, with two dark lines or rows of dark sjiots con- 



verging posteriori}^, bilineaia (Emerton). 



Sternum (lark, not marked as in hUineata, 2. 



2. Septal piece of guide very broad immediately in front of transverse 



arms, narrowing anteriorly where it is not sinuous or bent; the 

 median piece between anterior and posterior divisions of arms 

 very narrow, nuich narrower than the septum in front of arms 

 (PI. XVI, fig. 1); sternum usually black except marginally, 



ocreata (Hentz). 



Septal piece of guide sinuous or bent near anterior end ; median 



piece between anterior and posterior divisions of arms wide, 



wider than septum in front of transverse arms (PI. X\l, fig. 4); 



sternum usually reddish brown, saltatrix (Hentz). 



Males. 



1. First tibiae clothed with dense black hair standing out in brush- 



like form, 2. 



First tibiee not so clothed, saltatiix (Hentz). 



2. Legs yellow, without dark annuli or markings, bilineata (Emerton). 

 Legs annulate with dark, ocreata (Hentz). 



Schizocosa ocreata (Hentz), 1844. 



(Sub. Lycosa, J. Bost. Soc. Nat. Hist., IV, p. 391, PI. XVIII, fig. 5.) 

 Female. — Sides of the cephalothorax brownish black; median band 



