2G8 BULLETIN UNITED STATES GEOLOGICAL SURVEY. [Yol.Yl. 



wings, deeper shaded over median space and along terminal margin of 

 forewings. Stigmata concolorous. Lines oblique, uneven. Hindwings 

 blackish. Thorax like fore wings. Eyes naked ; tibiae unarmed. Ex- 

 panse, 29 mil. Taken by Professor Snow in Colorado. 



Gortyna obliqua Harvey. 



This species is the Californian representative of the Eastern immanis 

 of Gueuee. The outer pale line is more oblique than in our species. In 

 color and markings the two are else much alike, but I have no doubt of 

 the specific validity of the Western form. Our Eastern stramentosa, 

 very different from immanis in color, resembles it in the shajie of the 

 exterior line and just where ohliqua differs from both our Eastern spe- 

 cies. Mr. Hy. Edwards, to whom I am indebted for my pair of ohliqua, 

 has a number of sjDeciiuens of the Californian form quite constant in 

 its characters. 



Gortyna Harrisii n. s. 



i 9 . This species is allied to rutila and between that species and j)Wf- 

 purifascia. Fore wings A^arying from ferruginous orange to ochrey yel- 

 low, clouded and shaded with purply fuscous. Lines distinct. Exte- 

 rior line double, the outer component line dark and thick ; the line is a 

 little projected below costa, thence inwardly obliquely and evenly to in- 

 ternal margin. Base of the wing yellowish; a dot, sometimes whitish- 

 on median vein. Orbicular and claviform white, rounded, the latter in- 

 cluding a little spot superiorly. Eeniform a yellow, angulated streak, 

 surrounded by a cluster of dots partly yellow and partly white. Thorax 

 purply or yellowish, dark ; a tuft behind the collar ; dorsum of abdomen 

 tufted ; front without tubercle. Hind wings with a mesial line and ex- 

 terior shade; varying in pallor. Bencdth more reddish, with discal 

 mark and line distinct on hind wings. Expanse, 36 mil. Massachu- 

 setts, reared by Mr. Koland Thaxter. 



This species is represented in the Harris collection by two specimens 

 und r the number 361. I have been in doubt which species was in- 

 tended by Dr. Harris under the name Leucostigma ; it may be either this 

 or Eutila, but the question has no synonymical interest since there is a 

 very different EuroiJean species with the same name, not generically sep- 

 arable from Gortyna Hiibn., of which Micacea is the type. 



The excellent collection of Mr. Thaxter enables me to present a few 

 notes on our species of Gortyna. Guenee's figure of Eutila does not give 

 the details very distinctly, and in this genus the course of the transverse 

 posterior line must be observed. In Rutila it is bent opposite the disc; 

 this is indicated in Guenee's figure, where it margins inwardly the pur- 

 plish subterminal space ; in this same figure the subterminal line is 

 prominent, straight, and but slightly uneven. In studying the figure 

 this subterminal line must not be mistaken for the t. p. line, which is 

 not distinctly given. In his description Guen6e does not mention it. 



