Superfamily Argiopoidea 



II. Abdomen not marked with transverse 

 white bands, except sometimes a whitish 

 band at base. 

 J. Posterior three pairs of legs white, trans- 

 lucent, without marks. P. 679. 



Wala 

 J J. Posterior three pairs of legs not uniform 

 white. P. 673. Icius 



FF. Quadrangle of eyes occupying more than one 

 half of the length of the cephalothorax. 

 G. Thorax sloping from just behind the posterior 

 eyes; posterior eyes prominent; total length 

 2.5 mm. P. 675. Neon 



GG. Thorax nearly flat in the first half then sloping 

 abruptly; posterior eyes not prominent. 

 Total length 5 -+- mm. P. 676. Sitticus 

 EE. The sternum narrowed in front so that the anterior 

 coxas are separated by a distance less than the 

 width of the labium. 

 F. Tibia of the first legs with four pairs of spines 

 beneath. 

 G. Lower margin of the furrow of the chelicera 

 armed with a single tooth. P. 677. Hyctia 

 GG. Lower margin of the furrow of the chelicera? 

 armed with a compound tooth. 

 H. Abdomen with four longitudinal white lines 

 on a dark ground. P. 695. 



Onondaga 

 HH. Abdomen without white lines. P. 694. 



Mi vi \ 

 FF. Tibia of the first legs with less than four pairs 

 of spines beneath. 

 G. Tibia of the first legs with two pairs of spines 

 beneath or with less. P. (x>4. 



Metacyrba 



GG. Tibia of the first legs with three pairs of 



spines beneath and some anterior lateral 



spines. 



H. First pair of legs stouter than the second 



pair. P. 678. Marpissa 



667 



