197 • 



D. muralis, but the fore wings are more uniformly fuscous to the subtermi- 

 nal line, and then the terminal space contrasts by its frosty, grayish white. 

 Fringes distinctly checquered, fuscous and white, with the terminal line nearly 

 obsolete, not resolved into black dots as in D. muralis. Ordinary spots, ill 

 defined, whitish, the reniform inwardly sharply margined with black, smaller 

 than in D. muralis ; orbicular rounded, black edged. Claviform quite small, 

 concolorous, black edged, removed from the orbicular, hence very different 

 from that of D. muralis. A fine basal black ray. No black streak above inter 

 nal angle, and no black shading across the median space opjyosite the claviform. 

 The median lines are distinctly marked with black, in general shape resem- 

 bling those of D. muralis, but differing in slight details. The primaries are 

 more pointed than in Z>. mitralis, narrower and with the exterior margin 

 more oblique, straighter and a little depressed before internal angle. Hind 

 wings smaller, pale fuscous with traces of a double line on the veins, and 

 with the faint terminal line not broken into points. Beneath much as in D. 

 muralis ; on the hind wings the discal mark is larger and tends to fuse with 

 the median line, the latter exserted at this place so that a fuscous O may be 

 more or less completely outlined by the line and the discal lunate mark. Tho- 

 rax hoary gray, the tegulae black lined. 



Ex'iKinse, 35 m. m. Taken April 8th, 1874. 



3. The following species need comparison; they have been distin- 

 guished iy name, hut are, perhaps, undistinguishaMe hy character. 



Europe. 



Heliothis dipsacea {L.). 

 Scopelosoma satellitia {L.). 



Ameeica. 



Heliothis phlogophagus G. & R. 

 Scopelosoma sidus Guen. 



For a specimen of the European Lithophane socia {Hnfn.), I am 

 indebted to the courtesy of Mr. Lintner, and I have received my 

 type of Xylophasia vulgaris G. <& R., from Philadelphia, and have 

 a second sj)ecimen from New York in the collection. A compari- 

 son shows me that I have been totally wrong in considering them 

 synonymous. They are not even congeneric, and the entire refer- 

 c'DCP in the List, j). 2G, lines 23-24 must be struck out. X. vulgaris 

 has a conical, tufted abdomen, and the shape of the broader wings 

 is as in Iladena, rounded to the apices. The species is allied to II. 

 cariosa {Guen.), and must be interpolated on page 15 of the "List" 

 after that species as follows: 



