Vol. X.\i| KNTOMOUKMCAI. \K\VS 361 



The single example from Maine is doubtful. It is a female, 

 very contrastingly marked, labeled by Mr. Dod as typical albi- 

 fusa, but with the wing form and almost the reniform of tri- 

 folii. It is the only specimen in the entire series that is at all 

 dou'btful, and I have left it here chiefly because it fills in every 

 respect the requirements of Walker's albifusa. The most easily 

 recognizable portion of the sexual parts without dissection is 

 the uncus, which is readily seen in mounted specimens where 

 the anal parts are somewhat expanded. 



Mamestra oregonica. 



1 have one male from my own collection, Colorado Springs, 

 VI, which I refer to this species, and with this I am inclined to 

 associate three females from Denver and Durango, Colorado, 

 out of the Barnes collection. The male, which agrees with 

 Mr. Crete's description, is very uniform in ground, slightly 

 reddish in tint, the maculation clear but not at all relieved. 

 S. t. line pale, not at all shaded, with a small W on veins 3 and 

 4, not extending more than half-way through the terminal 

 space. Orbicular large, incompletely defined. Reniform 

 broadly kidney-shaped, like that of trifolii. The three females 

 agree in essentials, but are darker throughout. 



On the under side this species has a continuous extra-median 

 line and a discal mark on all wings. 



The male genitalia are remarkable by the abnormal develop- 

 ment of the claspers, which are separable from the harpes to 

 the base, and cannot be described better than by a reference to 

 Figure 5 on plate. 



A species which at first sight looks like an intensification of 

 oregonica, and which I have at times named as such, I have 

 now separated out under the term morana. 



Mamestra morana n. sp. 



Ground color a dull luteous fuscous, without contrasting colors or 

 markings. Front protuberant, with an obscure transverse darker shad- 

 ing. Collar with a median and terminal transverse dusky line 1 which is 

 never conspicuous and often barely traceable. Thoracic disc a littk- 

 powdered with whitish, patagia with an obscure submarginal line. 

 Piimaries with the maculation of chenopodii, but obscure, broken, 

 without decided contrasts. The basal and median lines are geminate, 



