320 



subacute; outer edge very oblique. Venation: one narrow, linear, subcostal 

 cell (in ferrvginata open) ; (he second and third subcostal venules much shorter 

 than in Acidalia, parallel, and near tlie apex; the origin of the first and 

 Second median venules more remote than usual. Hind wings much rounded 

 on the outer edge. The hind legs in the male rather smaller than the middle 

 pair, and more or less aborted, when well developed; tibiae shorter than the 

 femora, with no spurs; the tarsi longer than the tibiae. 



The moths of this genus differ from Acidalia by their small size, the 

 triangular, pointed fore wings, the well-rounded hind w inirs. and the broader 

 front of the head. They are usually reddish-ochreous, with two darker com- 

 mon lines. E. gemmata is, however, ochreous-white, with a broad, conspicu- 

 ous, dark-brown band common to both wings. 



Larva. — "Caterpillars elongated, carinated, flattened on the back and a 

 little less so beneath; head deeply notched on the vertex, with short hairs, 

 the prothoracic ring with two pyramidal tubercles, and a third smaller one 

 between them; living on low plants. Chrysalides subterranean." — Guenee. 



Si/nopsis of the Sj,ccies. 



Whitish, with a brown, common, broad, central hand F. gemmata. 



Likr gemmata, but largo, and with a heavy submarginal line /.'. occidenlata. 



Reddish, with brownish lines E. fcrruginata. 



EoiS GEMMATA, . sp. nor. Plate 10, fig. 37. 



2 r/. — Whitish-ochreons, of the tint of Acidalia enucleala. Head in front 

 and beneath and palpi brown. On both wings, a broad common band, occu- 

 pying the middle third of the wing; the band curves outward from the cosla, 

 is toothed on the lower subcostal venule, and again extends outward on Ihe 

 first and second median venules, while below is a broad, deep sinus; on the 

 inner edge, the baud is deeply siuuated from the costal edge to the middle of 

 the subniedian space ; the edge of the band is of a rich brown, and in the 

 middle are patches of a dull purple-brown. Both edges of the band on the 

 hind wings are denticulated, there being three obtuse teeth on the inside, 

 and two acute teeth on the outside; just beyond this band is a faint, diffuse, 

 dusky line, and a submarginal one common to both wings; beneath, slightly 

 paler than above, with the common dark band, and the shade next to it 

 faintly reproduced. 



Length of body, <?, 0.22; of fore wing, <$ , 0..">0 ; expanse of wings, 

 0.C0 inch. 



