1892.] ENTOMOLOGICAL NEWS. 137 



5. O. tcrminalis Smith. Not uncommon at Boulder and vi- 

 cinity; sitting on rocks by day, and have taken several at light 

 at Denver, August. 



6. O. levis Grt. Common in August at Golden City and 

 Denver; can be found in plenty by day by examining crevices 

 and under projections near electric lights. 



7. O. tricolor Smith. This beautiful species is sometimes 

 abundant at Denver; I have picked off more than a dozen ex- 

 amples from a building near an electric light in one morning, 

 August and September. 



8. O. homogena Grt. I met with this species in some numbers 

 near Aspen, flying over flowers in the sunshine; have also taken 

 a few examples at light in Denver, August. 



9. O. Glennyi Grt. Occurs in the greatest profusion during 

 September and October at light in Denver City. Walls and 

 fences near electric lights are spotted with thousands in the early 

 morning, the moths flying off or hiding in crevices as the sunshine 

 gets on them. This species is a positive nuisance every fall; the 

 store windows and hallways of hotels are covered with them. 



10. O. occata Grt. Occasionally at sugar in Platte Canon. I 

 met with a few fine examples this Summer near Canon City, flying 

 by day over flowers, August. 



11. O. Chandleri Grt. Occasionally at light in the western 

 part of the State; this year I found it common in July by beating 

 old cedars; they were hiding under the ragged bark. 



12. O. major Grt. Several on buildings and in crevices of 

 sidewalks near electric lights at Salida, July. I have also -taken 

 it flying by day. 



13. O. cibalis. Not common; have taken one or two every 

 Summer near the foothills in the eastern part of the State; they 

 start up from the herbage like Crambodes talidifonnis. 



14. O. Colorado Smith. Not uncommon at light in central and 

 western Colorado in July and August. 



15. O. atricollaris Harr. Occasionally at light in various parts 

 of the State, August. 



1 6. O. umbrifascia Smith. Two examples only, last July, at 

 light in southwestern Colorado. 



I have also two or three species taken this Summer, the names 

 of which I have not yet learned; they are probably undcscribed. 



