240 Wisco7isi7i Academy of Sciences., Arts and Letters. 



LYSSOMANES AMAZONICUS N. Sp. 



Plate XII, figures 1, 16. 



$ . Length of cephalothorax 2.5 mm; of abdomen 4.4 mm. 



Legs'12.5, 11, 10.8, 10.8. 



? . Length of cephalothorax 2.5 mm; of abdomen 5 mm. 



Legs 11.3, 10, 9.4, 9.2. 



Cephalic part ( ^ ) as long (?) not quite so long as thoracic. Quadrangle of 

 eyes one-fifth wider tlian long. Eyes of first row three times as 

 large as those of second. Second and first rows equally wide. Cly- 

 peus one -third as high as anterior eyes. Falces rather stout, diverg- 

 ing, i^not quite vertical, one-third longer than face; on the front of* 

 each falx just above insertion of fang, is a line of three stout hairs. 

 Maxillge rounded and a little enlarged at their extremities. Labiima 

 longer than wide, blunt and slightly narrower at extremity, and a 

 little more than one-half as long as maxillae. Legs 1, 2, 3, 4; femur 

 of the first not so long as femur with patella of the second. ( ^ ) 

 Palpus with tibia plainly longer than patella; patella and tibia plainly 

 less than one-half as long as tarsus. Femur with two spines at distal 

 end and one in the middle; patella with one long hair at extremity; 

 tibia with one stout hair at distal end on inner side. 



Coloration (under alcohol): $ . Light yellow. Eye-region covered with 

 white hairs; there is an abbreviated central longitudinal black line 

 on the thoracic region, and a black line around the lower margin. 

 The abdomen has two longitudinal brown bands throughout its length 

 which are enlarged at the middle point and again at the posterior 

 end to form two pairs of spots. The spinnerets are brown. The 

 legs grow darker toward their extremities and are tipped with black. 

 $ . Yellowish white. Cephalothorax like $ excepting that there is 

 no dark marginal line. Abdomen with two pairs of brown spots, and 

 with the spinnerets pale. The color is paler and the marks less dis- 

 tinct than in the $ . 



Habitat : South America (Amazon). 

 From the collection of M. Simon. 

 The male of this species difi'ers from all others in the greater relative 



length of the tarsus of the palpus, the tarsus being more than twice as 



long as the patella and tibia togeth^. 



