468 NORTH AMERICAN NOCTUID^. 



dark patch extending to t. p. line. Secondaries dull smoky fuscous. 

 Beneath, fuscous ; powdery ; a distinct outer line and large discal 

 spot. Head and thorax coucolorous with primaries, and also white 

 marked. Side pieces of S with the angulated tip dilated and rounded; 

 inwardly spinulose. Hind margin corneous, thickened, somewhat in- 

 curved. A short beak-like clasper near base. Exjiauds 1.20 inches 

 (30*""'). 



Habitat.—CiiWfovum ( S ), Clolorado ( 2 ). 



Two specimens agreeing in essentials ; the $ from Mr. Edwards, the $ 

 from Mr. Bruce. The species looks like capsular in ; but lacks the 

 prominent W mark. The genitalia are also entirely different, and re- 

 semble those of ///acia/is and variolata with which I associate this form. 



M. assimilis Morr. 



A specimen received from Mrs. Fernald differed so much from the typi- 

 cal form of this species that I believed it new, until I had compared 

 the genitalia. These being very remarkable and quite agreeing led me 

 to make more careful comparison, and I now describe the specimen as — 



M. pulverulenta Smith, n. var. 



Primaries dark powdery gray, with moderately defined markings, 

 picked out by white scales. The white patch near anal angle is distinct, 

 but less defined and not contrasting; not forming so prominent a feat- 

 ure as in the dead black type form. Beneath there is a total lack of 

 the crimson powderings found in the type form. Expands like the type 

 and otherwise very similar to it. The powdery appearance is so differ- 

 ent from the smooth, somewhat shining black of the normal form that 

 they seem hardly to belong together. This may be an aberration rather 

 than a variety. 



M. obscura Smith, sp. uov. 



Primaries dull smoky fuscous, with a brownish tint. Transverse lines 

 obsolete. S. t. line distinct, narrow, pale, marked by a preceding black 

 shade. A pale line at base of fringes. Olaviform wanting. Ordinary 

 spots incompletely black margined, coucolorous, reuiform, with a faint 

 reddish tlush. Secondaries even, pale fuscous. Beneath pale, powdery, 

 with dusky outer line and discal spot. Head and thorax concolorous 

 wivh primaries ; collar pale tipped. The side piece of $ is rather broad, 

 somewhat abruptly tapering to an acute tip. Clasper moderately long, 

 somewhat irregular, slightly curved and acute at tip. Expands 1.25 

 inches (33"^'")- 



Habitat. — Arizona. 



A uuiqwe i in good condition in collection U. S. Nat. Mus. (Riley 

 collection) is the type. The species is inconspicuous, and yet easily rec- 

 oo-nizable by the prominently marked s. t. and obsolete median lines. 

 Thoracic and abdominal tuftings distinct but not prominent. 



