J. H. Emerton — iVew England Attidce. 231 



into irregular dark and light spots. Around the front is a white 

 band, and there are other slanting white stripes along the sides. 



llie femur of the first [tair of legs is very dark brown, the other 

 joints white. The second and third legs are white, oi" only slightly 

 darker at the ends of the joints. The fourth legs have the hinder half 

 of the cox;i?, and the ends of all the joints brown. 



In the male the legs and palpi are brown, without the distinct 

 dark markings of the female. The abdomen is brown with irrides- 

 cent greenish scales, and a bright, white band around the front, and 

 two white obliquu stripes each side. 



The male has the front legs much larger than the feuTale. His 

 mandibles are long and stout at the base, and spread apart at the 

 ends. In the middle of the inner side is a large tooth, directed 

 downward, and near its base, two smaller ones, on the under side of 

 the mandible. On the under side, near the outer edge, is a long 

 ridge, ending in a tooth, curved inward. Fig. Aa. The male palpi 

 are very slender, and the tarsus and palpal organ long and small. 

 The patella and tibia are each twice as long as thick. The til)ial 

 hook is nearly as long as the tibia. Fig. Ah. 



Common on plants in summer, and occasionally found under stones 

 and bai'k. 



Massachusetts and Connecticut. 



Zygoballus terrestris, new sp. 



Length of female 3""". The cephalothorax is two-thirds as wnde 

 as long, and half as high as long. The posterior eyes are the full 

 width of the cephalothorax apart, and the thorax slopes backward 

 from them, but not as steeply as in betti/ni, nor is it as much nar- 

 rowed behind. PI. XVII, tig. 5. 



The color of the cephalothorax in alcohol, is dark brown, covered 

 thinly with small, light colored scales. The first pair of legs are 

 dark brown, the femur darkest, and the other joints a little lighter 

 in the middle. The other legs are lighter Avith the ends of the joints 

 dark. Fig. 5c. The abdomen is lighter than the thorax, and 

 marked with irregular and variable dark spots. 



In the male the abdomen is brown in the middle, with a distinct 

 white line around the front and sides. The male palpi are short, the 

 patella and tibia being not much longer than wide. The tibial hook 

 is as long as the tibia itself, and only slightly curved. Fig. 5(7. 

 The j)alpal organ is small and covered by the tarsus. The tube is 

 moderately long, and lies in the groove at the end of the tarsus for 



