Superfamily Argiopoidea 



Stoidis aurata (S. au-ra'ta). — The cephalothorax is black, 

 with a few white scales in front of the posterior lateral eyes, and 

 a white band on the sides of the thoracic part. The abdomen 

 is grayish brown with four black spots, the two of each side more 

 or less connected. The adult measures from one fifth to one 

 fourth inch in length. 



Genus NEON (Ne'on) 



To this genus belong the smallest species of the Attidae 

 known. The quadrangle of eyes occupies more than one half of 

 the length of the cephalothorax; the cephalothorax is flat, for a 

 short distance inclined cephalad, and abruptly sloping behind the 

 eyes. The anterior eyes are large, close together, and in a straight 

 line; the posterior lateral eyes are very large and projecting; they 

 form a row as wide as the cephalothorax. 



Neon nellii (N. nel'li-i). — The adult is only one tenth inch 

 in length. The cephalothorax is brown, darkest in the eye-region. 

 The abdomen is brown with pale spots and chevrons. This minute 

 species is common under stones and leaves at all seasons. 



Genus EUOPHRYS (Eu-oph'rys) 



The small eyes are halfway between those of the first and 

 third rows or a little nearer the third row; the quadrangle of 

 eyes occupies less than one half of the length of the cephalothorax ; 

 the sternum is oval, widely separating the coxae of the first legs; 

 and the lower margin of the furrow of the chelicerae is unarmed. 



Two uncommon species occur in our fauna. 



Euophrys monadnock (E. mo-nad'nock). — The male measures 

 one sixth inch in length; the female, one fifth. The colour of 

 the male is black; the cephalothorax of the female is dark brown 

 in front and lighter behind, marked with dark radiating lines, the 

 abdomen is pale gray with light chevrons along the middle and 

 irregular oblique lines on the sides. Although not common, this 

 species is distributed from New Hampshire to California. 



Euophrys cruciatus (E. cru-ci-a'tus). — Of this species onlv 

 the male is known; this was found in New Hampshire. The ab- 

 domen is black with a distinct white cross in the middle. The 

 length of the body is one fifth inch. 



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