554 GEOLOGICAL SUEVEY OF THE TEREITORIES. 



ing received additional specimens of this species from California through 

 Messrs. Edwards and Behrens, I am led to regard A. Pacificaria, 

 Pack., as a synonym. 



Acidalia guinque-linearia, Pack. — Colorado near Denver, and near 

 Keuosba House on the South Park road, four miles from the park; 

 elevation 9,000 feet ; Colorado (Ridings). This species, also common in 

 California, is closely related to A. strigilaria from Central and Southern 

 Europe, Russia, and Amur. 



Caulostoma oceiduaria, Pack. (Rep. Peab. Acad., 1874), (Fig. 8). — 

 This interesting species, the first of the genus yet observed in America, 

 is closely allied to C. flavaria, which is reported in Staudinger's cata- 

 logue as occurring in Galicia, Hungary, Southern and Eastern Turkey, 

 Middle Russia, and Armenia. I have received it from Colorado, where 

 it was collected June 3, near Denver, by Mr. Mead, and also near Pike's 

 Peak by Mr. Ridings. I have also an exami3le collected in Oregon by 

 Mr. W.' G.W.Harford. 



It differs from the European flavaria in having broader wings, both 

 pairs being much less excavated on the outer edge. The antennsB are 

 much the same, and the markings similar in the two species. The body 

 and wings are deep lemon yellow, with four nearly equidistant brown 

 spots on the costa of the anterior pair. From the third spot arises a 

 broad, diffuse, sinuous, brown shade, extending in the hind-wings and 

 forming a slightly-curved median band. 



Angerona crocataria, Fabr. — This species occurred in considerable 

 abundance at the head of Plum Creek, June 29. It does not differ from 

 Massachusetts specimens (Lieutenant Carpenter). 



JEnnomos Coloradia,G. and H. — "Colorado." (Grote). 



Caberodes majoraria, Guen. — Head of Plum Creek, June 29 (Lieu- 

 tenant Carpenter). 



Endropia vinosaria, G. and R. (Fig. 9.) — Colorado Springs, July 4 

 (Mead), ^ 



Family Noctuid^. 



Several of the more difficult forms of this family have been kindly 

 identified by Mr. A. R. Grote. Only those species collected by the sur- 

 vey are noti(;ed here. 



Catocala WalsMi, Edwards. — A specimen was collected at Clear Creek, 

 Se[)tember 20, by Lieutenant Carpenter. 



Erebus odora, Latreille. — Three specimens at the Colorado divide 

 (Lieutenant Carpenter). 



Flusia HochenwartJii, Hochenw. (P. divergens, Fabr. P. alticola, Walk. ; 

 P. igfiea, Grote). — This species has been identified by Mr. Grote as 

 Walker's P. alticola^ on comparing my specimens (which were collected 

 in the mountains of Colorado, July 22 to August 12, by Lieutenant 

 Carpenter), however, with one labeled "P. divergens, Alps," sent me by 

 the Vienna museum, I find but slight differences, scarcely varietal. It 

 is also identical with specimens obtained by me at Hopedale, Labrador. 

 While the Euroijean and Coloradian forms are nearly identical, that 

 from Labrador might by some be regarded as a distinct species. It is 

 much smaller than the European form, much faded and bleached out. 

 The markings on the fore-wings are much the same, but the forks of 

 the silvery spot are lost in the pale costal margin. There is no yellow 

 tinge on the hind- wings; they are white, dusky on the basal half, and 

 with a broad marginal band^ the inner edge of which is indistinct. 

 Length of fore- wing, 0.48 inch. 



Ten Colorado individuals compared with one from the European Alps 



