Superfamily Argiopoidea 



spiders is at rest upon a twig, it clasps it closely with its legs, 

 and the form of the bod)' is such that the spider appears like a 

 bud or a stump of a petiole. 



Fig. 572. SIDE VIEW 

 OF THE ABDOMEN 



OF TMARUS AN- 

 GULATUS, FEMALE 



Five species have been 

 described from the United 

 States, of which the follow- 



. . , Fig. 573 



ing is the most common. 



Tmarus angulatus (T. an-gu-la'tus). — The 

 colour of the body is dark yellow flecked with 

 five brown spots; the abdomen is crossed by 

 three or four darker bands (Fig. 573). The 

 length of the body is about one fourth inch. 



The male differs from the female in having 

 a smaller abdomen. The genital bulb (Fig. 574) 

 lacks apophyses; the embolus is long and curved, 

 and the tip of it is protected by a tutaculum. 



This is a widely distributed species; it is 

 the Tbomisus caudatus of Hentz. 



TMARUS ANGULATUS 



./ 

 Fig. 574- 



palpus of male 

 of tmarus 

 angulatus 



Genus MISUMENA (Mi-su'me-na) 



The first and second pairs of legs are almost entirely devoid 

 of spines except beneath the tibia? and the metatarsi. The eyes 

 of the anterior row are equidistant and are in a slightly recurved 

 line. The eyes of the second row are equidistant and in a more 

 or less recurved line. The median ocular area is a little narrower 

 in front than behind; its length and width are equal. The lateral 

 eyes are situated in slightly elevated confluent tubercles. 



lo this genus belong the most conspicuous of the crab- 

 spiders, some of them being quite large and white or bright Iv 

 coloured. About a dozen species are known from the United 



525 



