86 Wisconsin Academy of Sciences, Arts and Letters. 



as middle eyes. Maxillae enlarged at extremity. Labium one-half 

 as long, sometimes as wide as long, sometimes longer than wide. 

 Sternum lorger than wide, sometimes truncated in front, projecting 

 between anterior coxae. Anterior coxae separated sometimes by 

 more, sometimes by less, than width of labium. 



The genus Homalattus is nearest Ballus from which it is not readily dis- 

 tinguished. The greater length of the cephalic part (two-thirds of cephal- 

 othorax instead of one-half as in Ballus) and the shape of the thoracic part 

 enable one to decide. Ballus has the thoracic part contracted and the 

 dorsum falling gently from the dorsal eyes; in Homalattus the sides are 

 not contracted, and the fall, which does not begin at the dorsal eyes, is 

 very abrupt. In Zygohallus the cephalothorax is very high and the thoracic 

 part falls steeply from the dorsal eyes. JRhanis C. K., Rliene Thorell, and 

 Bhene Tacz. are identical with Homalattus W. 



HOMALATTUS CYANEUS Hentz. 



Plate I, figure 64. Plate VI, figures 64, 64a. 



Sy7i.: 1845. Attus cyaneus Hentz, Journal Bost. Soc. Nat. Hist., Vol. V. 

 1848. Maevia clirysea C. Koch, Die Arachn., XIV, p. 83. 

 1875. Attus cyaneus Hentz, Coll. Arachn. Writ, by N. M. Hentz 



ed. by Burgess, Boston, p. 69. 

 1885. Homalattus sep^eji^rtowaZis Keys., Neue Spinnen aus Amer- 

 ika, VI, Verhandl. zool. bot. Gesel. in Wien, p. 29 

 (515). 



$ . Total length 4.8 mm. Width of abdomen 1.2 mm. 



Cephalothorax: length 1.8; width 1.5; height .7. 



Legs 3.1, 2.2, 2, 2.5; patella and tibia of the first; 1.4; patella and tibia of 

 the third, 8; patella and tibia of the fourth, 1; metatarsus and tar- 

 sus of the fourth, 1. 



$ . Total length 4.6 mm. Width of abdomen 2.3 mm. 



Cephalothorax: length 1.8; width 1.7. 



Legs 3, 2.2, 2.4, 3.2; patella and tibia of the first, 1.2; patella and tibia of 

 the third, 8; patella and tibia of the fourth, 1.1; metatarsus and tar- 

 sus of the fourth, 1. 



Quadrangle of eyes barely one-third wider than long. First row of eyes 

 straight. Anterior lateral separated from middle eyes by one-half 

 their own diameter. Eyes of second row very small, and placed 

 fully twice as far from dorsal as from lateral eyes. Clypeus one-half 

 as high as middle eyes. Falces as wide as first row of eyes, one and 

 one-half times as long as face, vertical, parallel, anterior surface plane. 

 Maxillee truncated. Labium one-half as long as maxillae, about as 

 wide as long, contracted and rounded at tip. Sternum oval, nearly 



