Superfamily Argiopoidea 



Zilla x-notata (Z. x-no-ta'ta). — See above for the more general 

 characteristics. The palpi of the males are as long as the cephal- 

 othorax, and the tarsus and bulb small and round (Fig. 471, b). 

 The epigynum of the female is of the form shown in Fig. 472, b. 



Zilla moniana (Z. mon-ta'na). — See above for the more 

 general characteristics. The palpi of the males are shorter than 

 in the preceding species, the tibia thicker and the tarsus and bulb 

 larger (Fig. 471, c). The epigynum of the female is twice as large 

 as that of either of the preceding species and of the form shown 

 in Fig. 472, c. 



Zilla calif ornica (Z. cal-i-for'ni-ca). — This species is found in 

 California and in Washington. Only the female has been de- 

 scribed. The cephalothorax is whitish, with a black marginal seam, 

 and a large triangular black spot over the head part. The ab- 

 domen is grayish, with a broad folium, rather silvery near the 

 middle, black on the edge and with a silvery margin. The sides 

 are finely striped with black. The epigynum shows a dark trans- 

 verse area, three times as wide as long and with a small projection 

 behind from the middle. 



Genus WAGNERIANA (Wag-ner-i-a'na) 



The abdomen is armed with prominent humps both in front 

 and behind, but lacks the median hump at the base characteristic 

 of Marxia. The posterior median eyes are much closer to each 

 other than to the posterior lateral eyes. The tibiae of the first 



and second pairs of legs are with- 

 out spines above. Two species 

 are found in Florida; the following 

 is the more common one: 



Wagneriana tauricornis (tau- 

 ri-cor'nis). — The female meas- 

 ures about one third inch in 

 length; the male, about one fifth. 

 The species is easily recognized by 

 the prominent humps on the ab- 

 domen; these are more prominent 

 in the female (Fig. 473) than in the male. In the male the 

 shoulder humps are single instead of bifid, and there is a single 

 lateral one instead of three as in the female. There are four 

 apical humps in the male and five in the female. 



460 



Fig- 473- 

 WAGNERIANA TAURICORNIS 



