length beyond the front. Antennae with -hurl pectinations, much as in 

 Fidonia; in female simple. Fore wings unusually long; the costa straight, 

 a little sinuous ; apex much rounded; outer edge very oblique and convex, 

 much more so than usual. Hind wings unusually long; the apex continuously 

 rounded, with a very lull, rounded, outer edge. Venation somewhat as in 

 Ematurga, bul the subcostal areole is much shorter and broader, and the first 

 two subcostal venules are shorter, less obliquely directed to the costal edge 

 The arrangement of the discal venules much as in Ematurga. Hind legs 

 with the tibiae considerably swollen, and the tarsi nearly as long as the tibia 1 . 

 Coloration pale-brown above, with the under side of the hind wings beauti- 

 fully checked and marbled with silvery-white and greenish-ochreous. 



This and the European P. fasciolaria Iliilui. differ from Fidonia in tin' 

 longer, more rounded fore wings, the apex being a little-upturned, in the loDg 

 and much rounded hind wings, and singular mode of coloration. The singular 

 median crest on the head of our P. Jimetaria is wanting in its closely-allied 

 European species fasciolaria, and there is nothing like it in any other species 

 of Fidonia and allies known to me. I restrict Hubner's name Perconia to 

 this and its European ally, fasciolaria ; Hubner's Perconia is equivalent <<» 

 Treitsehke's Fidonia, and has been hitherto strangely ignored. r J ne female 

 differs from the male in the hind wings being a little more produced. The 

 larva of neither fasciolaria (cebraria) nor Jimetaria is known. 



Perconia fimetakia Packard. Plate 9, fig. 4.">. 



Fidonia Jimetaria Grote and Robinson, Trans. Auier. I'.nt. Soc, 'ii. I--', pi. ii. figs. -I. 65, 86, 1870. 

 Fidonia halcsaria Zeller, Verh. K. K. Zool. Bot. Ges. Wieu, \\ii. 183, 1872. 



10 £ and 1 9. — Male antennae broadly pectinated; the female pectinations 

 nearly as long as those of the male European fasciolaria; fore wings rounded 

 at the apex, and the inner angle rounded, not angular, as in F. truncataria. 

 The hind wings narrower and more rounded externally than in truncataria, 

 or its European representative P. fasciolaria, and less produced toward the 

 apex than in the latter species, and with a less distinct notch in the outer 

 edge. Body and wings of a peculiar, rich, ochreous, tan-brown, with ochre- 

 ous markings. Head and palpi ochreous, with brown scales. Antenna' 

 concolorous with the body and wings. Both pairs of wings of the same hue; 

 fore wings ochreous along the basal third of the costa; just beyond the middle, 

 a large, oblong, costal, ochreous patch; just before the apex, an ochreous, 

 costal spot, reaching nearly to the independent vein. Below the apex, two or 



