62 PROCEEDINGS OF THE ACADEMY OF 



Hob. Mass., Conn., Colorado. 



We have been acquainted for some time with a poor specimen of 

 this form from Massachusetts, in the collection of the Boston So- 

 ciety of Natural History, and have considered it a variety of H. 

 apamiformis, but the discovery by Mr. T. L. Mead of concordant 

 specimens from Colorado and Connecticut, and the capture by Mr. 

 Moring of several specimens at Nahant, Mass., during the past 

 summer, convinces us that it is distinct from the above species. 



The delicate brown tints of the anterior wings will always dis- 

 tinguish it. 



Mamestra rufula, nov. sp. 



M. brassicce (Linn.) Grote, Bull. Buff. Soc. Nat. Sci., vol. i. p. 103, and 

 vol. ii. p. 12. 



We have compared specimens of our species with a considerable 

 number of examples of the European M. brassicee, and are satisfied 

 that they are distinct from one another, although closely allied 

 M. rufula is larger and has the anterior wings comparatively 

 broader ; the reniform spot is smaller, rectangular, and better de- 

 fined ; there is a distinct white blotch before the inner angle, fol- 

 lowed by a reddish shade ; beneath both wings are strongly suffused 

 with reddish-brown, most evident along the costae. 



The latter character is the most conspicuous, although perhaps 

 not the most valuable in separating the species. 



We have specimens of the American species from Massachu- 

 setts, New York, Illinois, Missouri, and Indiana; it does not 

 appear to be of very rare occurrence, though by no means so 

 common as M. brassicee. 



Actinotia derupta, nov. sp. 



Expanse 34 mm. Length of body 15 mm. 



Eyes naked. Tibia? unarmed. Thorax smooth and un tufted ; 

 abdomen also untufted. Anterior wings and thorax yellowish- 

 gray, with brown markings ; on the former the ordinary lines and 

 spots are very indistinct and diffuse ; a dark brown basal streak, 

 and another similar streak beneath the sub median nervure ; a 

 streak extends along the inner margin to the exterior line ; the 

 interior line and the claviform and orbicular spots are obsolete ; 

 the reniform is present as a distinct but diffuse blackish-brown 

 spot; a series of brown markings along the costa ; exterior line 



