22 I 



The subcostal venules are long, the firsl one twice as loqg as the third. Tlic 

 independent vein is much nearer the sixth subcostal than usual, and the pos- 

 terior discal venule is very oblique. Hind legs long, tibiae long, slightly 

 swollen, tarsi nearly as long as the hind legs. Abdomen long and slender, 

 much as in Eu fidonia. Coloration bright deep ochreous, with transverse, 

 wavy, curved, darker lines. 



This remarkable genus differs from Fidonia, Eufidonin, and the allied 

 tonus mentioned above, by those characters of the wings which would cause 

 it to be mistaken for an Acidalia; the venation is remarkably like Acidalia, 

 being like that genus in all the points above noticed in which it differs from 

 its allies; the form of the fore wing is also much like Acidalia, the costa 

 being full and the outer edge very oblique. The hind wings are in-form 

 more like Eufidonia than Acidalia. On examination of the head, the very 

 large palpi, and the bod}-, it is quite different from Acidalia and like Eujidoiiia, 

 except that the palpi are much longer. It is the most remarkable case of 

 mimicry of a higher form I have yet met with in this family. 



Loxofidonia acidaliata Packard. Plate 9, fig. 44. 



Fidonia acidaliata Pack., Sixth Rep. Peab. Acad. So., 48, 1874. 



G <$ and 2 9. — This singular form would at first be mistaken for an 

 Acidalia. In the cut of the wings, it resembles Ematurga atomaria of Europe 

 and our Ematurgaa faxonii, but differs from the species of that genus in the 

 long slender palpi and the slightly-pectinated antennae. Its palpi are much 

 longer than in Fidonia truncataria, and the wings, especially the hinder pair, 

 much more produced. The palpi reach beyond the head a distance equal to 

 the length of the latter. The male antennae have long slender pectinations, 

 about twice as loug as in F truncataria Walker. Body and wings deep 

 brownish-ochreous, the wings with dark-brown scalloped lines, both pairs 

 concolorous and with similar markings. Fore wings with about eight wavy 

 lines, the basal angulated on the costa, and remote from the second. The 

 second and filth broader and heavier than the others (inclosing three fine 

 lines), both angulated a little below the subcostal vein, the fifth a little sinuous 

 and scalloped. The fifth and sixth separated by a distance equal to the 

 width of the abdomen. The seventh and eighth submarginal approximate, 

 finely waved. The eighth sometimes lost in a dark margin. Fringe dark 



