124 THE CANADIAN ENTOMOLOGIST. 



metallic golden part are four spots of raised scales, one large, black on 

 the fold at the middle of the wing, another smaller one above it in the cell 

 is white, edged wiih black, and at the end of the cell are two more or less 

 confluent spots of iridescent bluish scales edged with black. Between the 

 yellow central part of the wing and the dark a})ical part is a small 

 triangular silvery-white spot. Hind wings dark purplish brown. 

 Abdomen dark brown above, silvery white on the under side. Legs 

 purplish brown, with the tips of the spurs and of the tarsal joints white. 



Alar expanse, 9-10 mm. 



Habitat : Pittsburg, Pe?insylvania, May; District of Columbia, June. 

 U. S. Nat. Mus. Type No. 9797. 



It gives me pleasure to name this exquisite little insect in honour of 

 Mr. Heni'y Engel. 



The species belong to the group of small metallic Mompha, which 

 contains Schranckella, Hiibner, and tenniHeiia,y^QS>i\wood, of Europe, and 

 is, in fact, very nearly identical in coloration with the latter. 



Rebel retains in his Cat. Eur, Lepid. the separate genus Psacaphora 

 for these two species, but does not include the other metallic species as 

 Raschiella, Zellar. The more logical way is to retain them all in Momp/ia, 

 as does Meyrick in his Handbook British Lepid., though eventually this 

 genus may profitably be divided into two groups, the one repre- 

 sented by these small metallic species with smooth palpi and legs, the 

 other to include the dull-coloured species with more or less shaggy palpi 

 and legs. 



Epermenia imperialella, new species. — Antennae ciliated, dark 

 fuscous; basal joint reddish, with pecten. Labial palpi reddish ochreous, 

 shaded with black exteriorly. Face, head and thorax ochreous. Fore 

 wings light yellow, overlaid on costal and apical part with reddish 

 ochreous. On the middle of the wing is an ill-defined broad oblique 

 darker grayish ochreous fascia, widest at the costal edge, gradually 

 narrowing to the dorsal edge, which it reaches at basal third ; it is there 

 continued into a dark ochreous dorsal scale tuft. The reddish coloration 

 increases in intensity towards apex. Cilia just below apex short, then 

 suddenly very long, giving the wing the appearance of being falcate. 

 Cilia reddish ochreous, with a marginal black line below and around 

 apex, and with a white space outside this line, just below apex. Hind 

 wings dark bi'onzy fuscous ; cilia ochreous. Abdomen ochreous. Legs 

 reddish. 



