552 GEOLOGICAL SURVEY OF THE TERRITORIES. 



Selidosema juturnaria, Guen., var. Californiaria, Pack.— My single 

 specimen from Colorado (collected by Mr. Ridings) is in some respects 

 intermediate between 8. juturnaria and my types of ^S". Californiaria, so 

 that I would consider the latter as simply a variety. In the Colorado 

 example, the outer line on the fore- wing is bent very distinctly ; the hind- 

 wings beneath not mottled, but tinted obscurely with reddish pink, like 

 the under side of the fore- wings. There is also a faint band common to 

 both wings. 



Fhasiane sinuata, Pack.— Mountains of Colorado, July 22, August 12 

 (Lieut. W. L. Carpenter). 



P. Meadiaria,V'dck. (Rep. Peab. Acad. Sc, 1874).— This species is named 

 after its discoverer, Mr. T. L. Mead, who captured it June 1, at Denver, 

 Colo. It differs from all the other species by the two blackish, shortened, 

 sinuous lines, the outer one shaded externally, and in the body and wings 

 being flesh-colored, almost reddish. The fore- wings are rather short, and 

 the anteuusB densely ciliated. Itis closely related to P. JKipj?erton«,Dup., 

 of Europe. 



P. excitrvaria, Pack. — In this species, all the lines are dusky, with no 

 yellowish shade ; the species derives its name from the outer line being 

 curved outward. " Rocky Mountains " (A. R. Grote). 



'P. Jlavofasciata, Pack. (Fig. 5). — One 5 specimen of this species, here- 

 tofore only described as inhabiting California, is contained in the 

 museum of the Peabody Academy of Science, having been collected in 

 Colorado by Mr. Ridings. It is well preserved, and differs but slightly 

 from one of my Californian individuals. The markings are much the 

 same ; it is slightly darker, the outer line on fore-wing slightly narrower; 

 the discal dots are the same. The under side of the wings is distinctly 

 mottled and stri gated, with a clear, mouse-colored, broad, marginal 

 shade, free from the strigse. 



Length of body, 0.42 inch ; of fore-wing, 0.58 inch. 



Marmoyteryx iessellata, n. sp. (Fig. 6). — 1 9 . Compared with M. mar- 

 morata from California, its nearest ally, the fore-wings are rather 

 narrower, and the outer edge more oblique, while the apex is more 

 pointed. The head is exactly as in that species; the front being full and 

 bulging. Head and thorax pale-gray, with a reddish tinge. Palpi 

 blackish at tip. Front of head with a slight yellowish tint, reddish be- 

 tween the antennsB. A dark streak on each side of prothorax, and a 

 long, narrow, dark-brown slash on the patagia. Both wings of a rich 

 golden- yellow, with dusky slate- brown margins. Fore- wings, with the 

 costa, pale slate-color, checkered broadly with five large, square, white 

 spots, and two minute, whitish, linear spots near the apex. Outer edge 

 dusky, the dark margin narrowing toward the inner edge. Fringe very 

 long and slate-colored, checkered conspicuously with white. Hind-wings 

 like fore-wings ; the costa is narrowly edged with slate. Beneath, the 

 wings are brightly colored ; the anterior pair dull golden-yellow, with 

 a reddish tinge on the costal side. Borders of the ring checkered very 

 conspicuously, as above ; the apex, however, whitish. Hind-wings pale 

 fawu-coiored, marbled with white, with a costo-apical, oblong (trans- 

 versely) white spot, and a large square white spot in the middle of the 

 wing below ; costa marbled with whitish ; abdomen pale fawn-color, 

 like the thorax. 



Length of body, 5 , 0.45 inch ; of fore wing, 9 , 0.64 inch. Arizona — 

 (Dr. Palmer, Department of Agriculture). 



Though this species is described from Arizona, it may be confidently 

 looked lor in Southern Colo'rado. The species is so remarkable, that 

 1 \ euture to describe it from a single individual. It may be readily 



