302 Wisconsin Academy of Sciences^ Arts^ and Letters. 



Pardessus P., 1896. 



•7 



For illustration, see Attidae of Central America, PL III, 

 figs. 1-lb. 



itather large, handsome spiders, with distinct patterns. 



The cephalothorax is rather high, with the upper surface level, 

 or slightly convex. The cephalic part is slightly inclined ; the 

 thoracic falls little or not at all in the first half, and then slopes, 

 not very abruptly, to the posterior margin. The thoracic plate 

 is bluntly narrowed behind. The sides widen out gradually 

 from the anterior end to the middle of the thoracic part, and 

 then contract a little. They slant outvv^ard, so that the cephalo- 

 thorax is considerably wider below than above. The highest 

 point is at, or just behind, the dorsal eyes. The quadrangle of 

 the eyes is less than one-fourth wider than long, is about equally 

 wide in front and behind, and occupies two-fifths of the cephalo- 

 thorax. The four anterior eyes are a little separated, the lateral 

 more widely from the middle eyes than these from each other, 

 and form a straight row. The second row is a little nearer the 

 first than the third, and is narrower than the third, which is, 

 itself, plainly narrower than the cephalothorax. The type of 

 this genus is Plexippus mim^icus, C. K. 



Servaea Simon, 1888. 

 PL XXY, figs. 2-2b. 



Jowmal Asiatic Son. of Bengal, Vol. LVII, part 11, Xo. 3, 

 p. 283. 



The name Servaea was substituted for Scaea L. Koch., 1879, 

 Arachn. Australiens, p. 1142, this being preoccupied. 



This Australian genus is very close to Pliilaeus, the cephalo- 

 thorax having the same long, nearly parallel sides, but the upper 

 contour is quite different, Servaea having the dorsum nearly flat, 

 while in Philaeus it is distinctly convex. The quadrangle of the 

 eyes is one-third wider than long, and a little wider in front 

 than behind, occupying two-fifths of the cephalothorax. The 

 first row is slighty bent, with the middle eyes plainly less than 

 twice as large as the lateral. The second row is about half way 



