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is much larger, and the color is an intense orange-red, with violet 

 powderings. 



The second series contains the remainder of the species, and 

 these again with the exception of vimilenta agree in genital structure. 

 The harpes are rather elongate, of moderate width, equal to near 

 tip, then suddenly narrowed and bent, the tip again somewhat 

 broader, obliquely truncate or rounded, inwardly fringed with very 

 fine spinules. The clasper extends along upper margin of harpes 

 to the bend, is there very abruptly curved and extends straight 

 downward, considerably beyond the tip of harpes. 



Tristigmaia, zvalkerii and sidus have the t. p. line dark and 

 crenulate; viorrisoni and devia have it pale and even. 



Tristigmata has the orbicular distinct, and the claviform evi- 

 cient, differing by the first of these characters from the others in 

 this series by the second from all the others of the genus. The color 

 is a reddish luteous. 



Walkej'ii lacks the orbicular, has the reniform usually marked 

 with white, and is reddish luteous, powdery. 



Sidus, of which vimilenta is undoubtedly a synonym, differs 

 superficiallv onlv in the dull, somewhat rusty red-brown color. The 

 maculation is identical, but usuall}^ more strongly marked. The 

 genitalia are very different, and somewhat like vioffatiana; the harpes 

 are moderately wide, lower margin excavate near tip, which narrows 

 to an obtuse point. The clasper is like that of inojfatiana. 



Morrisoni is again luteous reddish, like zvalkerii, but differs as 

 already indicated by the even, pale t. p. line. 



Devia is more mouse-gray in color, with white powderings. 

 The distinctive feature of the species is a broad, oblique shade 

 through s. t. space, and the approximate median lines. 



In synoptic form the species are distinguishable as follows: 



Wider winged species; ocher yellow to dark brick red. the median shade 

 prominent; ordinary spots large, defined. 

 T. p. line very distinct, even, not crenulate or marked on veins. 



Paler ocher yellow; t. a. line upright grxfiaua. 



Darker yellow; t. a. line obtusely angulate on subcostal vein, moffatiana. 

 T. p. line less contrasting, crenulate, marked on veins by darker jioints. 



Reddish ocher yellow; size smaller pettiti. 



Dark orange-red, with violet powderings; larger .... ceromatica. 

 Narrower winged species; luteous to red-brown; median shade less distinct; 

 ordinary spots smaller, indefinite or obsolete. 

 T. p. line crenulate; dark. 



Orbicular distinctly, claviform faintly indicated tristigmata. 



Orbicular and claviform wanting. 



