Superfamily Argiopoidea 



marked species, in the genus Runcinia, in which there is a trans- 

 verse ridge in this position. But the arrangement of the eyes 

 in this species is that characteristic of Misumena and not that of 

 Runcinia, in which the median eyes of each row are farther from 

 the lateral eyes than from each 

 other; while in Misumena the 

 eyes of each row are equidistant. 



Fig. 581. 

 FACE OF MISUMENA ALEATORIA 



Fig. 582. 



PALPUS OF MALE 



OF MISUMENA 



ALEATORIA 



The epigynum of this spe- 

 cies resembles quite closely that 

 of M.' vatia figured above. 



The male measures only one eighth inch in length. The 

 cephalothorax is green with the sides dark brown; the abdomen 

 is bright yellow. The first two pairs of legs are very long and are 

 dark brown in colour. The embolus is short and straight. In the 

 unexpanded bulb, it arises on the distal margin of the bulb in 

 the tip of the alveolus and projects outward and slightly forward 

 (Fig. 582); the tip of it rests in a depression in the face of the 

 cymbium, just outside the margin of the alveolus. 



Genus MISUMESSUS (Mis-u-mes'sus) 



This genus is closely allied to Misumena but differs in having 

 large and prominent spines on the femora of the first and second 

 pairs of legs, and on the upper face of the tibia? of the same 

 legs. The cephalothorax and abdomen are more spiny than in 

 Misumena. The tubercles of the lateral eyes are joined by a 

 rounded ridge, and the posterior lateral eyes are not larger than 

 the posterior median eyes. 



Eight species of this genus have been found in the United 

 States; they are almost entirely restricted to the South 



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