Thorell.] 500 [April 21, 



egg-shaped, pointed. The genital bulb is at its base much inflated; 

 seen from the side this posterior high part is obliquely truncate in 

 front; it has on the anterior side a large, not very profound fovea, 

 situated somewhat more inwards, from which proceeds a rather 

 strong obtuse tooth directed forwards and outwards, and bearing at 

 its base a smaller tooth directed outwards, and not rising out of the 

 fovea. Immediately in front of this elevated hinder part of the 

 bulb, and lying close to it, is a fine and long spine-like costa, which 

 issues from the anterior margin of the bulb, and is directed trans- 

 versely inwards and slightly curved upwards ; near the outer margin 

 the bulb shows a black, pointed, downward and forward directed 

 tooth, and behind it a stronger obtuse tooth, or short process, of a 

 paler color. The anterior part of the bulb, outwards, has the form 

 of a low, broad lobe, rounded at the apex. The legs are of a dark 

 yellowish brown ; the thighs have on their upper side black spots and 

 lines, including two very long pale spots, divided by a fine, black, 

 longitudinal line ; also the tibiae present slight traces of dark spots 

 or rings. The anterior tibias, seen from the under side, show four 

 pairs of spines, of which the third pair, however, belong to the sides 

 of the joint. The abdomen is of blackish or olive brown, with a 

 rather narrow, pale, white-haired median band reaching from the 

 anterior margin to the middle of the back, or shorter ; the belly is 

 pale ; the mamillse black. 



The, female is of the same color, and about of the same size as the 

 male, with the legs somewhat shorter ; the palpi are dark yellowish 

 brown , the femoral joint with black spots. The interval between the 

 central eyes of the first row is greater than that between them and 

 the laterals. The vulva consists of a large oblong fovea, which in its 

 anterior third part is narrow and of equal breadth, then strongly 

 dilated, with the sides rounded; it is divided longitudinally by a nar- 

 row septum, which is gradually and slightly dilated from the fore end 

 to the middle, then again slightly narrowing, and at last dilated 

 anew into a somewhat broader transverse lamina, rounded in the 

 sides, and closing the fovea behind; this lamina appears to have a 

 large shallow impression on either side ; in front of it the septum 

 shows a longitudinal furrow, broader in the middle. 



c?. Length of the body, 7 millim. ; of cephalothorax, 4 millim. ; 

 breadth of cephalothorax, 3 millim.; first pair of legs, 12 millim.; 

 second, 11.5 millim.; third, 11.25 millim.; fourth, 15.5 millim.; pa- 



