TULLGREN, ARANEiE FR. THE GRAN CHACO. 33 



Eyes. Anterior row slightly recurved or nearly straight. 

 Anterior centrals larger than anterior laterals and a little 

 more than their radius apart. The distance between anterior 

 centrals and laterals nearly thrice the diameter of the for- 

 mer ones. Lateral eyes contigous, anterior ones largest. 

 Area of central eyes much broader in front than behind and 

 longer than broad. Anterior centrals much larger than the 

 posterior ones. Posterior row a little recurved with the eyes 

 about equal in size. Posterior centrals a little longer than 

 their diameter apart. 



Cheliceres blackish brown, strongly convex, with short 

 grayish pubescence. Fang-groove at the outer margin with 

 4 teeth, inner one with only two. 



Coxce of pedvpalp and lahium blackish brown with påle 

 testaceous tips. 



Sternum cordiform, longer than broad, påle yellowish 

 brown with a very narrow darker margin. 



Legs 1. 4. 2. 3. The colour is påle yellowish red with 

 the tips of all joints black. They are covered with a short 

 black pubescence and furnished with numerous long blackish 

 spines. Tarsal claws on the first pair of legs with 7, on 

 the fourth pair with 5 teeth. 



AMomeyi elongate oval, a Httle tapering towards the 

 hind-apex. The back magnificent coloured. In the middle 

 a longitudina] white or a little rosy stripe. On each side of 

 that in the front -|-shaped velvet-black spöts. On each 

 side of the back a white stripe, that surrounds three more 

 or less triangulär velvet-black spöts. The space between the 

 white stripes grayish black. The mamillse surrounded by 

 rosy colour. The venter black with two lateral white stripes 

 and the epigastric part yellowish brow^n. Sides of abdomen 

 ^ black with irregular whitish stripes in the front half. 



Vidva black, vertically projected and with a very short 

 scapus (conf. the ,fig. 10 b). 



Measurements . 



Total length 13 mm. 



Length of cephalothorax 5 » 



Breadth » » 4,8 » 



Length » abdomen 10 » 



Breadth » » 6,4 » 



Ärhir för zooJorji. Bd 2. N:o 19. 3 



