352 PROCEEDINdS OF THE NATIONAL MUSEUM. vol. x.xvin. 



Jersey region, from earliest spring to late in the autumn, and, except 

 in September, has never seen the species, it is therefore reasona])le to 

 assume that it is one-brooded, and I venture the assertion that the 

 larv8e of this, as well as the majority of other silver-marked Eucoxinas^ 

 arc boreijS or internal feeders. 



EUCOSMA CIRCULANA Hubner. 



One male, August 1. Exactly like Hul)ncr's tigure. Type was 

 from Pennsylvania. 



EUCOSMA PERGANDEANA Fernald. 



One male. May 31. 



EUCOSMA GRACILIANA, new species. 



Head, palpi, thorax, and fore wings pale fawn brown. Outer ends of 

 scales of palpi stained with fuscous. 



Forewing. — Inner two-thirds of costa alternate short oblique lines 

 of white and fuscous l)rown, in outer third same formation is continued, 

 but ground color replaces the fuscous brown, and silvery metallic over- 

 lay the white. A vertical white line occupies the extreme apex, and 

 on costa before and close to it are two other lines; the length of these 

 three lines is nearly one-thii-d the widtli of wing; the central one is 

 most heavil}^ metallic, while that on apex is simply dull white. Before 

 this group of three vertical lines, and counting toward base, with apical 

 spot number one, the fourth, sixth, and eighth are prolonged obliquely, 

 then horizontally outward, the outer ends of the two former coming* 

 together, the extensions heavilv overlaid with metallic. The ocellic 

 spot is large, its inner side formed of a vertical metallic l)ar over one- 

 third the width of wing; a similar bar defines the outward edge, but it 

 is broken near lower end and slightly turns inward toward anal angle. 

 Pietween these two bars are two narrow horizontal ])lack lines, con- 

 nc^cting them together at the top; a third line is indicated below b}^ a 

 few black scales. Above the ocellic spot on outer margin is a small 

 metallic spot. All of the interior of the wing, below the costa and 

 Ixd'ore th(^ ocellic spot, is rather evenly dotted with metallic, arranged 

 ill rather straight horizontal lines, of which three lines are al)ove and 

 three below the fold. The dots in the su])costal line have a tendency 

 to riui together in groups of two or three; all others are separate. A 

 scale or two of fuscous usually accompanies the metallic scales wher- 

 ever they occur. 



Male costal fold closely compressed, a])out one-fourth length of wing, 

 a shade or two more tawny than general ground color. Cilia pale cine- 

 reous, heavily powdered basally with tiny black dots. Hind wing 

 fuscous, cilia white, underside same, but a shade paler. I'nderside 

 fore wing smoky fuscous, costa marked with dark blackish dots, cilia 



