AMERICAN LEPIDOPTERA. 305 



E. niicrophysa n. sp. — Expands 14 mm. Palpi and front jet black ; sum- 

 mit between tlie antennae, pure white ; collar blackish ; thorax dark gray. Ab- 

 domen dark gray, interlined with blackish ; all wings light gray, very thickly 

 powdered with blackish and fuscous scales giving a general dark gray color, this 

 varying in intensity a little, and thus showing faintly a broad extra basal band 

 running nearly parallel with outer margin, also a slight lightening into a sub- 

 marginal shading parallel with margin, the hind wings continuing these; discal 

 spots blackish, fairly distinct; beneath much as above, but more fuscous and less 

 clear. 



Pauamint Valley, California. From Dr. Riley, taken by Mr. 

 Koebele on the Death Valley Expedition. In National Museum 

 collection. 



E, delicata n. sp. — Expands 17 mm. Palpi and front fuscous ocher ; thorax 

 ochreous, as is also the abdomen ; all wings straw ochreous ; fore wings extended, 

 pointed, very rounded at anal angle giving the wings an almost even lanceolate 

 form ; a black, rather broad basal line, angulated outwardly on cell, from thence 

 straight to inner margin ; a blackish intra-discal band and a black extra-discal 

 line slightly bent outward beyond discal spot and inward near inner margin ; a 

 submarginal fuscous cloud, broadest at vein 6 and between veins 3 and 5; hind 

 wings with the middle and outer lines and the submarginal shading of the fore 

 wings continued, the shading broadest between veins 2 and 4. and between 6 and 

 7; beneath as above, but fainter. 



Las Cruces, New Mex., from Mr. Cockerell. 



E. iiiinbicolor n. sp. — Expands 17 mm. — Palpi dark fuscous gray; front 

 blackish ; thorax gray. Abdomen fuscous gray. Wings even light ash-gray, with 

 three not very distinct black wavy cross-lines, generally showing in scattered 

 black scales, one intra-discal, another extra-discal, rather broad, showing more 

 distinctly at costa and on the wings; a third line outer, finer, very indistinct on 

 fore wings, except at costa ; more distinct in black dots on hind wings : discal 

 spot on bind wings faint, on fore wings not evident ; below even cinereous. 



Florida, taken in April. 



E. lanceolata n. sp. — Expands 18-20 mm. Very much in coloration and 

 appearance as Eois nivalis, the wings scarcely so extended and pointed. Palpi 

 gray, blackish on tip ; front and thorax white, with an intermixture of blackish 

 scales. Abdomen white, with interlining of fuscous: all wings white, with scat- 

 tered fuscous scales a little thicker in spots and lines ; a broad intra-discal fuscous 

 cross-line, not very distinct, and the submarginal space fuscous, inner edge even, 

 parallel with outer margin ; hind wings with corresponding bands, marginal lines 

 fuscous, narrow, fringes white, with scattered dark scales; beneatli as above, 

 more clear and distinct. 



Argus Mountains, California, April, from Dr. Riley, and taken 

 by Mr. Koebele on, I believe, the Death Valley Expedition. In 

 National Museum collection. 



E. riifescens n. sp.— Expands 20 mm. Palpi whitish, fuscous tinged ; front 

 the same color ; thorax ochreous fuscous. Abdomen ochreous; fore wings rusty 

 ochi'eous, even in color, with blackish discal spot and faint indications in a light- 



TBANS. AM. KNT. SOC. XXIII. (39) .'^KPTfcMBKK. 1M9H 



