March, 1903.] BUSCK : NOTES ON YPONO.MEUTID/E. 53 



Type: syIveUa\Xx\x\^i. Of European species, only -fi7?r//</ Linne, 

 Iticella Fabricius and alpella Schiffermuller belong to this genus. 

 The American species may be separated by the following table : 



Forewings with broad white longitudinal streak from base to apex 1 



Forewings without such streak 3 



1. Apical part of the forewings with black marking 2 



Apical part of forewings pure white COCkerella, sp. nov. 



2. Forewings of same color above and below white streak gerdanella, sp. nov. . 



Forewings differently colored above and below white streak. 



delicatella, sp. nov. , 



3. Forewings with narrow white longitudinal lines nella, sp. nov. 



Forewings without such lines 4 



4. Forewings without any dark markings, head and top of tliora.\ white. 



sublucella Wals. ' 



Forewings with more or less dark ornamentation, head and thorax not white 5 



5. Forewings with subobsolete blackish longitudinal streak towards apex. 



cervella JVu/s. 



Forewings without such streak 6 



6. Forewings with two faint oblique parallel dark dorsal streaks and one perpendic- 



ular to these querciella, sp. nov. 



Forewings without such streaks subsylvella /Frz/j. 



Abebfea gerdanella, sp. nov. 



Antenna; white, dotted with black scales above. Labial palpi white, sprinkled 

 with sparse black scales on the outside; tuft on second joint longer than terminal 

 joint. P'ace, head and thorax white; shoulders yellowish. Forewings light golden 

 brown with white and black markings. In the middle of the wing from base to apex 

 is a broad white streak, slightly edged with black on both sides from base to end of 

 cell ; there it broadens out gradually and covers entire apical part of the wing, but is 

 obscured by longitudinal black streaks covering the intervals between the apical 

 veins and leaving the veins indicated by narrow white lines. Extreme costal edge 

 is slightly touched with black ; basal part of dorsal edge whitish. Cilia white with 

 four narrow black transverse lines m apical part. Hindwings light silky ochreous ; 

 cilia whitish ; legs and underside of body white, sparsely mottled with single black 

 scales. Alar expanse, 18 mm. 



Habitat: Mesilla Park, New Mexico, at light, May (Cockerell). 

 U. S. National Museum, type No. 6758. 



Abebasa delicatella, sp. nov. 



Labial palpi white, second joint sprinkled with a few black scales on the out- 

 side, terminal joint with a small black spot at base ; tuft on second joint com- 

 pre.ssed, pointed, longer than the terminal joint. Head and thorax white. The dor- 

 sal half of the forewings from base to tornus dark reddish-brown, with strong purple 

 reflections, lighter, more yellowish on the dorsal edge, gradually becoming darker 

 and more purple towards the middle of the wing. Bordering this dorsal part, the 



