Mar., 'o6] entomological news. 97 



The known American species may be separated by the fol- 

 lowing table, which is merely my former synopsis, amplified 

 to include the additional species : 



Forewings with round second diseal dot 1. 



Forewings without such dot 2. 



1. With blackish streak above the fold aleutianella Beut. 



Without such streak unicipunctella Busck. 



2. With longitudinal black streaks 3. 



Without longitudinal black streaks 7. 



3. With continuous black streaks from base 1o tip 4. 



Without such streak 5. 



4. Black central streak edged with white dorsally . . flavisirigella n. sp. 

 Forewings without white streak schwarziella Busck. 



5. Ground color pure white striatella Busck. 



Ground color not white 6. 



6. Head ochreous manella Busck. 



Head black and white barberella Busck. 



7. Head pure white 8. 



Head not pure white 9. 



8. Forewings with strong well defined markings . . . angellcella Busck. 

 Forewings without such markings vintrella n. sp. 



9. Apex of forewings cupreous undulatella n. sp. 



Apex not cupreous 10. 



10. Ground color ochreous white maculatella n. sp. 



Ground color not white 11. 



11. Alar expanse less than 19 mm 12. 



Alar expanse more than 21 mm 13. 



12. Membrane between veins 11 and 12 in forewings thickened. 



radiatella Don. 

 Membrane not thickened rubrella Dyar. 



13. Forewings light olive brown olivella Busck. 



Forewing dark purplish brown arizonella Busck. 



Cerostoma flavistrigella sp. nov. 



Antennae dark fuscous without color annulations. Labial palpi whit- 

 ish ochreous, finely mottled with black. Face and head dirty ochreous, 

 each scale tipped with white, preceded by dark brown. Thorax dark 

 fuscous. Forewing dark fuscous, mottlec and streaked with black; 

 especially on the costal half. A continuous black streak from base to 

 apex limits the darker costal half of the wing ; below and edging it 

 through its entire length is a broader longitudinal white streak, which, 

 together with the rest of the dorsal part, is more sparsely mottled with 

 black Hindwings dark fuscous. Abdomen dark fuscous, tarsal joints 

 tipped with ochreous. 



Alar expanse, 22-24 mm. 



