Superfamily Argiopoidea 



GG. Cephalothorax short and thick; two or three 

 pairs of spines on the tibia of the first legs. 

 P. 686. Sassacus 



CC. Tibia and patella of the third leg as long as or longer 

 than the tibia and patella of the fourth leg. 

 D. Quadrangle of eyes wider in front than behind. 

 P. 687. Habrocestum 



DD. Quadrangle of eyes with sides parallel or wider be- 

 hind than in front. 

 E. Tibia of first pair of legs with four bulbous setae. 

 P. 670. Thiodina 



EE. Tibia of first pair of legs without four bulbous 

 setae. P. 688. Pellenes 



AA. The posterior margin of the cephalothorax and the pedicel 

 of the abdomen visible from above. Ant-like spiders. 

 B. Hind part of thorax narrow and with parallel sides, thus 

 adding to the apparent length of the pedicel. P. 671. 



Synemosyna 



B B. Hind part of thorax not narrowed so as to add to apparent 



length of pedicel. 



C. Quadrangle of eyes more than one half the length of 



the cephalothorax. P. 699. Peckhamia 



CC. Quadrangle of eyes less than one half the length of the 



cephalothorax. P. 672. Myrmarchne 



Genus LYSSOMANES (Lys-som'a-nes) 



This genus is sharply distinguished from all 

 others represented in our fauna by the position 

 of the anterior lateral eyes behind the anterior 

 median eyes and occupying an area but little if 

 any wider than that occupied by the anterior 

 median eyes, the eyes being in four rows, each 

 row consisting of two eyes (Fig. 745). Only a 

 single species has been found in the United States. 



Lyssomanes viridis (L. vir'i-dis).— ■ This is a 

 light green spider common in the Southern States. 

 The male is one fourth inch in length; the female 

 one third. There are four black tubercles on the 

 head; the first pair of tubercles bear the second 



1 i 745. 



I.\ SSOM W!> 

 VIRIDIS 



669 



