Superfamily Argiopoldea 



long; the abdomen is cylindrical, with two thick cones at the base, 

 whose summits are bifid. Only the female is described; this 

 measures one sixth inch in length. It was found in Florida. 

 This is the Carepalxis tuberculifera of some authors. 



Genus GLYPTOCRANIUM (Glyp-to-cra'ni-um) 



Our species of this genus can be easily recognized by the form 

 of the cephalothorax, which bears prominent horny outgrowths and 

 many smaller warts. The abdomen is subglobose and is as wide 

 as or wider than long. 



Only two species are described from the United States. These 

 were formerly placed in the genus Ordgarius. 



Glyptocranium cornigerum (G. cor-nig'e-rum). — The female 

 measures one half inch in length. The cephalothorax is red o 

 reddish brown and yellow, with dark brown markings; the ab- 

 domen is yellow, with dark or brownish markings upon the basal 

 part. When resting on a leaf it looks exactly like bird-lime; it 

 rests with its legs folded so as to increase this resemblance (Fig. 

 457), which is chiefly due, however, to the colours of the spider. 

 Figure 458 represents a front view of the cephalothorax. The ab- 

 domen bears a very prominent pair of shoulder humps. The 

 male measures only one tenth inch in length; the cephalothorax 

 bears four large tubercles on the hind part of the head; and the 

 abdomen is nearly spherical. 



This species is found throughout the southern half of the 

 United States. 



Glyptocranium bisaccatum (G. bi-sac-ca'tum). — This species 

 is a little smaller than the preceding, the adult female measuring 

 from one third to four tenths of an inch in length. The cephal- 

 othorax is slightly scalloped at the sides. It rises from the eyes 

 backward and has at the highest part behind the middle two large 

 horns. The carapace is covered with conical scattered points. 

 The abdomen is wider in front than long and extends over the 

 thorax as far as the two horns (Fig. 459). The cephalothorax is 

 light brown, darkest in front; the front of the abdomen is light 

 brown with various whitish irregular markings, the back part is 

 yellowish white; the under side of the body is white. The male 

 resembles the female in the general form of the body, but measures 

 only one eighth inch in length. 



448 



