768 BULLETIN UNITED STATES GEOLOGICAL SURVEY. 



Fyrrhosidia oiapa Scud. 

 Oae specimen from the hills west of Denver, August 18. 



These Hesperians were kindly determined for me by Mr. Samuel H. 

 Scudder. 



HETEEOCEEA. 



The following list of moths, collected by me in Colorado, in 1875, was 

 prepared by A, S. Packard, jr., M. D. : — 



Fam. ZYGMl^IDJE. 



€rnopJicela vermiculata Grote & Robinson. 



Common in Beaver Brook Gulch and in Clear Creek Canon, August 

 6 and 7.— (P. Pt. U.) 

 Lycomorpha miniata Pack. 



One specimen seen flying from the mountain heights into Beaver 

 Brook Gulch, August 6.— (P. E. U.) 



Lycomorplia j^almeri Pack. 



Found in the same place as the preceding, and also flying in the full 

 sunlight. I have no doubt of these being but varieties of a single 

 species. — (P. R. U.) 



Fam. B0MBYCIDJ3. 



Crocota ferruginosa Walker, and var. hrevicornis. 

 From Clear Creek CaQon, August 7. 



Fam. NOCTUID^. 

 Erehus odora Drury. 



Broken specimens of this insect were lying about in the hotel at 

 Beaver Brook, showing the species to be not uncommon at that 

 place.— (P. R. U.) 



Tarache angustij)enn%s Grote. 



Inhabits the region of Colorado Springs. 

 Mamestra discalis Grote, n. sp. 



From Clear Creek Caiion, August 6. 

 Mamestra oUvacea Morrison. 



Obtained at Beaver Brook, in Clear Creek Caiion, August 6. 



Mamestra sp. 



Indicates a species distinct from M. illaudahilis Grote. Collected in 

 Clear Creek Caiion. 



Mamestra {Diantlioeoia) meditata Grote. 



From Colorado Springs, August 13. 

 Hadena arctica (Boisd.). 



Taken at night in Clear Creek Canon, August 6. 



Trihadium spumosum Grote. 

 On flowers in the tall grass at Bijou Creek, August 19. 



