so Wisconsin Academy of Sciences, Arts mid Letters. 



mouthparts light brown ; sternum, coxse and venter yellowish, first pair 

 of legs dark brown, the others yellowish tipped with black. $ . Much 

 like 6 but fighter in color; cephalothorax showing a slender, central, 

 longitudinal black line from the middle of the cephafic to nearly the 

 middle of the thoracic part; the central band on abdomen dark brown, 

 the sides lighter, but not white; first legs darker than the others but 

 lighter than in S . 

 Easily distinguished, as the abdomen is more than three time as long as 



wide. 



Habitat: New York, South Carolina, Georgia, Florida. 



MARPTUSA FAMILIARIS Hentz. 



Plate I, figure 60. Plate IV, figure 60a. Plate V, figure 60. 



Syn.: 1845. Attus familiaris, H., Journal Bost. Soc. Nat. Hist., Vol. V. 

 1846. Maepissa undata, C. K., Die Arachn. XIII, p. 60. 

 1846. " conspersa ( $ ) id., ibid., XIII, p. 61. 



1846. " varia, id., ibid., XIII, p. 69. 



1875. Attus familiaris, H. , Coll. Arachn. Writ, by N. M. Hentz, 

 Ed. by Burgess, Boston, p. 56. 



S. Total length 9. 5 mm. Width of abdomen 2.9 mm, 



Cephalothorax: length 4.4; width 3.2; height 2.1. 



Legs 10.6, 8.4, 8.2, 10; pateUa and tibia of the first, 4.4; patella and tibia of 

 the tlfird, 2.9; patella and tibia of the fourth, 3.3; metatarsus and 

 tarsus of the fourth, 2.9. 



2 . Total length 10.5 mm. Width of abdomen 3.5 mm. 



Cephalothorax: length 4.5; width 3.5; height 1.8. 



Legs 9, 7.7, 7.7, 9.1; x^atellaand tibia of the first, 3.8; patella and tibia of the 

 third, 8; patella and tibia of the fourth, 4; metatarsus and tarsus of 

 the fourth, 2.9. 



Ocular area occupying less than one-third of cephalothorax, nearly twice 

 as wide as long, and equally wide in front and behind. Anterior 

 eyes in a scarcely curved row, the lateral less than one-half as large 

 as the middle eyes, and separated from them by one-half their own 

 diameter, while the middle eyes are slightly separated from each 

 other; eyes of the second row halfway between lateral and dorsal 

 eyes; dorsal a Httle smaller than lateral eyes, placed ( ^ ) a Httle, (?) 

 plainly further from each other than from the lateral borders, form- 

 ing a row much narrower than the cephalothorax at that place. 

 Clypeus nearly vertical, rather less than one-half as high as middle 

 eyes. Falces extending, in width, to the inner edges of the lateral 

 eyes; one-half longer than face, parallel, vertical; fang short. Max- 

 illas parallel, enlarged and rounded at extremity. Labium a Httle 



