— I 12 — 



one at that, in the other groups of this section, the transverse lines 

 i ome below the submedian streak. There are a few species here 

 and probably a number of others with which I am not acquainted. 



Phyllira is always easily distinguished by the rigidly oblique trans 

 verse lines, the two cuter lines being nearly parallel. The W maj be 

 more or less ol solete and so may the inner cross band, but the rigidity 

 of the lines is always tractable. 



Gervinoides is closely allied, but is smaller. I know it only from 

 Strecker's figure. 



Figurata is always distinguishable from phylliraby the lack of rigidity 

 in the transverse lines, the outer line being usually somewhat bent in the 

 middle, and the two lines slant in opposite directions. The W is more 

 usually obsolete in this than in the phyllira form and thus we get 

 F. pallida Strk., in which it is wanting entirely. The secondaries of this 

 species have generally a broad black margin, never broken up as in phyl- 

 lira, ami sometimes the secondaries become entirely black, and thus We 

 get excelsa Neum. 



Finally is a series of species, closely allied in which there is no W 

 but an x beyond the middle. 



These are celia, nais and decorala, the two latter at least of which, 

 are forms of the same species, whether the first is, or not, I am not cer- 

 tain — perhaps I have mistaken its type. At all events the pattern of 

 maculation is very distinct from that of the other species. I have no idea 

 that the interval between this and the phyllira series can be bridged. There 

 is a sharply defined sexual difference in color and wing form in nzis and 

 the secondaries also vary considerably in maculation. Sometimes it is 

 spi itted only — generally in the males — atothers thereisa wideblack margin, 

 often taking up half the wing — this is the tendency in the Q, which is 

 • a rule much redder than the $. On the primaries the tendency 

 i^ to an obliteration of the outer x and attendant marks, leaving only the 

 submedian stripe — and this variation is the only one shown by the species. 



The other species I do not know sufficiently to care about discussing 

 them. I will again finally declaim the idea of making critical notes on 

 ill'- genus as a whole. My only idea is to call attention to some charac- 

 ters which do not serin to have been sufficiently emphasized heretofore, 

 and to express mj conviction that the species of Arciia are not nearly so 

 ariable as has been supposed and that every good species is capable of 

 accurate definition. A goodly number of species have been described 

 from single, somewhat aberrant examples, and the names hang on in the 

 lists, though the species may have been recognized as synonyms long 

 sine especially is that true of the autheola group, in which Mr. Neu- 

 mi egen has lone some judicious lumping recently. 



