Superfamily Argiopoidea 



three well-marked, black, chevrons on the posterior half of the 

 abdomen, with a light brown spot at each end of each chevron. 

 On the basal half of the abdomen there are three pairs of black 

 points. 



The epigynum of this species differs markedly from those of 

 the other common species. The guide is very broad in front 

 and does not extend to the hind part of the organ (Fig. 695). 

 It bears a tongue-like projection behind, which in some specimens 

 is strictly continuous with the wide part, as shown in the figure, 

 but in other specimens, which are perhaps shrunken, it is more or 

 less withdrawn into the body and therefore inconspicuous. 



This is the Dolomedes idoneus of Montgomery. 



The Fountain Dolomedes, Dolomedes fontanus (D. fon-ta'nus). 



— This (Fig. 696) is one of the larger and more common species of 

 Dolomedes; but it is a little smaller than D. tenebrosus. It differs 

 from our other common species in having the sternum blackish 

 with a yellow median band. The cephalothorax is brown with 

 a narrow median light line extending its whole length; from 

 the median side of each posterior lateral eye arises a yellow 

 line which passes backward and is so curved that with its 

 fellow of the opposite side it forms nearly a circle. On the 

 posterior half of the abdomen there are four transverse W-shaped 

 yellow bands. 



The epigynum of the female is almost as long as wide; the 

 guide is finger-like, and extends to the hind margin of the organ 

 (Fig. 697). It resembles that of D. urinator in the apparent 

 division of the guide. 



The apophysis of the tibia of the male palpus terminates 

 in two large teeth and a small one (Fig. 698). 



The Whitish Dolomedes, Dolomedes albineus (D. al-bin'e-us). 

 This is a large species closely allied to D. tenebrosus. The 

 female is easily recognized by a yellowish longitudinal band edged 

 with black on the ventral aspect of the abdomen; the clypeus 

 bears a white band with black below; and the head is much 

 elevated. I have not seen the male. 



This is a Southern species. Hentz states that' it does nol 

 dwell habitually in caves and cellars, but is usually found on the 

 trunks of trees, vet in dark, shady places. 



The Diving Dolomedes, Dolomedes urinator (D. u-ri-na'tor). 



— The female of this species can be distinguished from our 



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