Spiders and Their Near Relatives 



BB. Palpus yellowish or brownish. 



C. Femur, patella, and tibia of the palpus plainly 

 thickened, dorsum with a black stripe, trochanters 

 dark brown. Found in the District of Columbia. 



Leiobunum crassipalpis 

 CC. Palpal segments not thickened. 



D. Femur of the palpus very long, curved, extending 

 much above the surface of the cephalothorax, 

 dorsum with a distinct black stripe, trochanters 

 black. A widely distributed species. 



Leiobunum vittatum 



DD. Femur of the palpus shorter, dorsum without a 



distinct black stripe. 



E. Dorsum dark, with two large yellowish spots on 



the union of the cephalothorax and abdomen. 



Occurs in California. Leiobunum bimacuJatum 



EE. Not so marked. 



F. Apex of the tibia of the second pair of legs white, 

 trochanters black, body short. Occurs in 

 the Eastern States. Leiobunum longipes 



FF. Apex of the second tibia not white. 



G. Apex of the femur of the first pair of legs white 

 preceded by a black band, coxae pale out- 

 side. Occurs in New Mexico and in Texas. 



Leiobunum townsendi 

 GG. First femur not so marked. 



H. Trochanters dark, contrasted in colour with 

 the coxae. 

 1. Legs black, dorsum dark brown, eye- 

 tubercle slightly spinulate. Occurs in 

 Ohio. Leiobunum nigripes 



II. Legs pale, sometimes marked with black. 

 J. First femur barely as long as the body, 

 tips of femora and tibiae dark brown 

 or black, eye-tubercle nearly smooth. 

 Occurs in the Eastern States 



Leiobunum formosum 

 JJ. First femur plainly longer than the body, 

 eye-tubercle spinulate, legs not so dis- 

 tinctly marked with black. 



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