OF WASHINGTON, VOLUME XII, 1910. 67 



quisition by insects of the blood-sucking habit, one must begin 

 with the natural and work towards the unnatural; that is. 

 start from the basis that the insects were first vegetable feed- 

 ers and afterwards gained the blood-feeding habit. 



The third paper, by Mr. Ely, was as follows: 



NEW SPECIES OF NORTH AMERICAN MICRO- 

 LEPIDOPTERA. 



BY CHARLES R. ELY. 

 Family PYRALID^. 



Acrobasis aurorella, new species. 



Head yellow white; palpi yellow white, slightly darker externally on 

 second joint; thorax gray with pinkish hue; abdomen gray on dorsum, 

 yellowish on ventral surface, ringed with yellowish above and with whit- 

 ish below. Fore wings dark gray at base, the scale ridge of the same 

 color, followed by a dull clay-colored shade, the rest of the wing nearly 

 uniform pale gray, almost concolorous with hind wings, but somewhat 

 pinkish and slightly shaded with dark gray along costa and external mar- 

 gin; discal dotsdistinct, separate; outerline barely discernible, pale. Hind 

 wings yellow gray. Sexual markings of male as in A. stigmella Dyar 

 (Proc. Ento. Soc. Wash., x, p. 43, 1<.K>8). 



Expanse, 23 mm. 



Two males, East River, Connecticut, August 17, 1908, and 

 Washington, D. C., June 20, 1909 (Chas. R. Ely). 

 Type: No. 12879, U. S. National Museum. 



Acrobasis dyarella, new species. 



Head yellow gray, thorax pale gray with ruby red shading: abdomen 

 gray, ringed with yellowish. Fore wings gray with a ruby-red shading, 

 which is distributed quite generally over the wing surface, except the poste- 

 rior margin ; a dark apical shading; discal dots distinct, separate; outer 

 line distinct, excurved in middle, dentate; no sexual markings in male 

 on under side of wings. 



Expanse, 18 mm. 



One male and one female, East River, Connecticut, Sep- 

 tember 5 and August 12, 1909 (Chas. R. Ely). 



Type: No. 12880, U. S. National Museum. 



Named in honor of Dr. H. G. Dyar, in recognition of the 

 encouragement and help that he has afforded the writer in his 

 collecting and studying the various species of this genus. 



