108 PECKHAM. [Vol. 2, 



ICIUS SIMON. 



Plate X., Figs. 7—76. 



SiDiders small or of moderate size. 



The cephalothorax is moderately high. Both cephalic 

 and thoracic parts are slightly inclined, so that in profile it 

 looks convex ; the thoracic part falls only a little in its first half, 

 and then slants abruptly. The sides are nearly parallel, there 

 being only a slight enlargement behind the dorsal eyes. 



The first row of eyes is straight or slightly curved. The 

 middle are nearly twice as large as the lateral eyes. The 

 second row is half-way between the first and third or a little 

 nearer the first. The third row is as wide, or nearly as wide, as 

 the cephalothorax at that place, the eyes being further from 

 each other than from the lateral borders. The quadrangle of 

 the eyes is from one-third wider than long to nearly twice as 

 wide as long ; it is a little wider behind than in front, and oc- 

 cupies about two-fifths (nearly one-half) of the cephalothorax. 



Icius closely resembles Epiblemum, in general shape, but 

 the cephalic part is relatively longer, occupying nearly one-half 

 of the length of the cephalothorax, while in Epiblemum it oc- 

 cupies about one-third. 



It is also near Menemerus. In tliis latter genus, however, 

 the cephalothorax is higher, and widens more perceptibly be- 

 hind the dorsal eyes ; the thoracic part slopes more steeply 

 from the dorsal eyes ; and the lateral eyes of the first row are 

 relatively larger, being about two-thirds as large as the middle 

 eyes. 



Of this genus we have Icius (Icelus) notabilis C. Koch 

 (Arachnides de France, E. Simon, \o\. III., p. 57); Icius linea- 

 tus (Msevia lineata C. K.), described in N. A. Attidse, p. 45 ; 

 Icius elegans (Attus elegans 9 and Attus superciliosus $ 

 Hentz), which we have described in North American Attidse, p. 

 37, under Dendryphantes ; Icius striatus Wlk., described in 

 Simon's Arachnides de France, A^ol. III., p. 59; Icius hartii 

 Emerton, New England Attidaj, Trans. (>onn. Acad., Vol. 

 VIII., Oct., 1891, and a new species, wickhamii, from the Ba- 

 hamas. 



