36 



THE COMMON SPIDERS 



Fig. 105. Philodromus 

 ornatus. — Female en- 

 larged six times. 



color of the under surface. The thorax is darker in the 



middle and at the sides in irregular spots of gray. The legs 

 are spotted and darker toward the ends of the joints. 

 The under side of body and legs is light colored. 



Philodromus ornatus. — This is a small 

 species about one-eighth of an inch long. 

 The female is very distinctly marked with 

 dark brown on a white ground (fig. 105). 

 The middle of the thorax is white and the 

 sides brown nearly to the edge. The abdo- 

 men is white, with a distinct brown band 

 on each side from the front more than half 

 its length backward. Sometimes there is 

 also an indistinct brownish pattern in the 



middle, but this is usually 



absent in adults, and the mid- 

 dle is entirely white. Under 



the abdomen the lateral brown 



bands extend backward and 



meet around the spinnerets. 



The abdomen is wider than 



in most species, — nearly as 



wide as it is long across 



the hinder half. The male 



is very differently colored. 



The legs and thorax are 



orange brown, darker at 



the sides of the thorax 



and toward the ends of 



the legs. The abdomen 



is darker brown and 



strongly iridescent with 



Figs. io6, 107. Philodromus lineatus. — 106, female. 

 107, male. Both enlarged six times. 



red and green in a bright light. In alcohol it shows indistinctly 



I 



