Attidce of North America. 87 



twice as long as wide. Anterior coxse separated by about the width 

 of the labium. First leg with femur, patella and tibia enlarged. 

 Femoral, tibial and metatarsal spines on the four pairs. 



Coloration. Our specimens are somewhat damaged: the S has the scales 

 all rubbed off and appears entirely black excepting some yellowish 

 hairs on the clypeus, and pale rings on the metatarsi of the second, 

 third and fourth legs. On the cephalothorax and abdomen of the 

 $ there are left a few yellowish white, somewhat metallic scales; 

 otherwise it is like the S . Hentz describes this species as brassy- 

 green. 

 Count Keyserling has kindly sent us a specimen of his H. septentri' 



onalis and we find it identical with cyaneiis. 



Habitat: Iowa, New York, Pennsylvania, Massachusetts, North Carolina, 

 Alabama, Georgia, Nebraska. 



BALLUS YOUNGII Nov. Sp. 



Plate I, figure 66. Plate VI, figures 66, 66a, 66b. 



$ . S . Total length 2.8 mm. Width of abdomen 1.4 mm. 



Cephalothorax: length 1.5; width 1.2; height .6. 



Legs 1.9, 1.7, 1.6, 2.1. Cephalothorax a little longer than patella and tibia 

 of the first; patella and tibia of the third shorter than patella and 

 tibia of the fourth; patella and tibia of the fourth longer than meta- 

 tarsus and tarsus of the fourth. 



Cephalothorax low, plane, a very little dilated behind middle, with sides 

 vertical in front and slightly rounded behind; cej)halic jDart not in- 

 clined; thoracic part not slanting until it reaches the posterior border, 

 where it is ti'uncated and a little hollowed. Ocular area occupying 

 nearly one-half cephalothorax, one-third wider than long, slightly 

 wider behind than in front. Anterior eyes touching, in a straight 

 row; middle twice as large as lateral eyes; eyes of second row half- 

 way between lateral and dorsal eyes; dorsal as large as lateral eyes, 

 further from each other than from lateral borders, formmg a row as 

 wide as cephalothorax at that place. Clypeus much inclined back- 

 ward, two-thirds as high as middle eyes. Falces very weak, about 

 as long as face, parallel, inclined backward; fang very weak. Max- 

 illfe parallel, short, wider and truncated at extremity. Labium short, 

 twice as wide as long, rounded. Sternum oval, rather short. nte- 

 rior coxaj separated by width of labium; coxse of the fourth touch- 

 ing. Legs of the first and second pairs stoutest, with femoral joints 

 compressed; inferior rows of spines on the tibia? and metatarsi of the 

 four pairs. Anterior end of abdomen fitting into excavation at pos 

 terior end of cephalothorax. 



