282 Wisconsin Academy of Sciences, Arts and Letters. 



NEON Simon. 1876. 



Syn.: 1869. Attus Sim., Monogr. d. especes Europ. de la fam. d. Attides, 

 p. 14 (24) (ad partem). 



1871. " Id., Revis d. Attid. 



1872. Euophrys Thorell, on European Spiders, II, p. 404. 

 1876. Neon Sim., ArachiT. de France, III, p. 208. 



1880. " Karsch, Arachnol, Blatter VIII, Zur Kenntniss der 

 Attiden, in Zeitsch. f. d. Naiurwissensch., LIII, p. 397. 



Cephalothorax not high; cephalic part a lictle longer than the thoracic: 

 the latter very slightly contracted and widely truncated. 



Eyes of the face touching, forming a straight line. Dorsal eyes at 

 least as large (often larger) than the lateral, very convex, not promi- 

 nent; as far apart as the lateral eyes, since the sides of the quad- 

 ra] 'gle are parallel. 



Clypeus less than half as wide as the middle eyes, almost glabrous. 



Sternum triangular, much wider than the intermediate thighs. 



Legs short; those of the fourth pair the longest; those of the first and third 

 pairs nearly equal; those of the second pair the shortest; first pair a 

 little thicker than the others; third and fourth pairs without spines ; 

 first and second pairs pr.-senting below two rows of tibial and meta- 

 tarsal spines usually long and bristle-like.^Tibia and patella of the third 

 shorter chan tibia and patella of the fourth; tarsus and metatarsus 

 of the fourth very slightly shorter than the patella and tibia. 



Falces obliquely inclined, short, slender, taken together narrower than the 

 two middle eyes. 



Integument ornamented. 



Spinnerets the superior ones longer than the inferior, and more slender; 

 very far apart, leaving visible ths inferior ones to the base, formed 

 of two articulations, the second very short. 



* lONA K 



Syn.: 1882. Erasmia Keyserling, Arachniden Austraiiens, p. 1350. 



Cephalothorax one third longer than wide, a little contracted toward the 

 front, behind rounded, not wider at the dorsal eyes, above plain. 



Clypeus half the diameter of the large eyes. 



Quadrangle of eyes wider than long; wider in front than behind; dorsal 

 eyes placed a little behind the middle of the cephalothorax, almost 

 further from each other than from the margin of the cephalothorax. 

 First row of eyes slightly recurved and very close together. Small 

 median eyes half way between the anterior lateral and the dorsal 

 eyes. 



*Iona is substitued for Erasmia, the latter name being preoccupied. 



