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Beneath, ocher, somewhat dusted with black, costal margin reddish ; discal spots 

 black, small. £ larger, with more of a violet shading, and this not so distinct. 



2 dV> * 9 9, Calif. 

 Tephrosia Nevadaria, sp. nov. 



Expands 30 mm. Head and thorax bright ochreous ; abdomen ochreous fuscous. 

 Antennae much more finely pectinated than is usual. Fore wings even ochreous 

 fuscous to outer line ; inner lines wanting, outer line broad, band-like, even, parallel 

 with outer margin ; beyond this line an ochreous space, then to margin fuscous; 

 dis al -pot black, distinct. Hind wings li^ht gray, finely striated with ocher fuscous; 

 discal spot distinct ; a marginal row of black points on all wings. Beneath as above 

 with all wings lighter, except along costal and outer margins of fore wings. 



1 (j\ Sierra Nevada Mountains, Calif. 

 Hemerophila Packardaria, sp. nov. 



Expands 31 mm. All the parts generally of a dark fuscous color, formed by a 

 light fuscous ground, generally but sqammosely covered with black atoms. Discal 

 point of fore wings white, annulated with black ; lines two, both very oblique, the 

 inner median, faint, the outer extra discal, distinct, rounded out at middle, reaching 

 COSta just within apex, and inner margin at middle, edged outwardly with a light 

 ii e; a faint submarginal light line ; marginal line of black points ; fringe interlined. 

 Hind wings unevenly scalloped on outer edge, with discal point black or inclosing 

 white point ; a black median line, distinct, subparallel with outer margin slightly 

 angulated and edged outwardly with white. A light, rather taint submarginal line : 

 margin black ; hinges interlined. Beneath, nearly even dark fuscous ; discal points 

 whitish annulated. 



4 cTd^> Calif. Named in honor of Dr. A. S. Packard, who, more 

 than any other, has advanced our knowledge of the Geometridce of N. A., 

 and to whom I make grateful acknowledgment of assistance. 

 Semiothisa caesiana, sp. nov. 



Expand? 22 mm. Uniformly even squammose gray. Fore wings with three 

 Inn-- ; the basal and median heavy, black, diffuse, approximate, parallel ; the median 

 includes the discal point, which i- white annulate with black ; the third line is fine, 

 faint, sometimes obsolete, with a large sinus on anterior half. Three black spots on 

 eo-ia at ends of lines. Hind wings with first two wings continued, but fainter or 

 subobsolete. Beneath, nearly even loose gray. 



2 (j\-j\ 2 9 9- Eastern U. S. I have often had this insect 

 sent me, and have with much suspicion looked upon it as a form of .S". 

 ocellinata, Guen. The shape of the wings is however different, as well as 

 the position and direction of lines. It is also a stouter though a smaller 

 insect. I have often found it at rest on the trunks of Willows, and have- 

 little doubt, that tree is the food plant of the larva. 



Aspilates unicoloraria, var. nov. 



I give this name to a variation of A. desperaria, which seems to be 

 quite prevalent in Colorado. The insect is of the same general color as 

 desperaria, but the lines are obsolete, and the whole surface of the wings 

 is of a loose striated fuscous color laid upon light gray. 



