38 



in the breadth of the hind wings, which are dis2:>roportionately am- 

 ple in the male. I propose for the species the name Plathypena' 

 SCABRA. Lederer agrees with Hiibner in a generic separation of the 

 European crassalis, under the name Bomolocha. In this genus the 

 costal edge is arcuate or even, much as in Plathypena, but the inter- 

 nal margin of the primaries is straight. Through the kindness of Mr^ 

 Lintner, Mr. Meske sends me a specimen taken near Albany, which 

 seems to be the European crassalis, and differs from BaUimoralis in 

 the absence of the peculiar neck-like constriction of the median 

 sj^ace inferiorly. Our congeneric species are: Bomolocha Balti- 

 MORALis (Guenee), Bomolocha abalieitalis (Walker), Bomolocha 

 MAJ^ALis (Walker), Bomolocha bijugalis (Walker), and Bomolo- 

 cha madefactalis (Guenee). Differing from this genus by the 

 sinuate or depressed costal margin of the primaries, which are 

 acute at the apices and produced on external margin opposite the 

 middle, as well as by the more ample concolorous wings, woolly 

 body scales and stouter build, we have two species from the Atlantic 

 District which I separate from the foregoing under the name Mac- 

 RHYPENA.* The type is Hypena deceptalis, Walker. Our species 

 are Macrhypexa deceptalis, and Macrhypena profecta (Grote). 

 We may follow these by Lomanaltes laetulus, Grote, which dif- 

 fers by the oblique external margin of the primaries and essentially 

 in their shape. 



Two species from the Atlantic District are conspicuous by their 

 even shape and dead black color, hardly relieved by pale scale marks. 

 All the angles of the primaries are softened ; the wings are shorter 

 and broader ; the eyes larger ; the whole appearance more noctui- 

 form. I have described these under Hypena. They appear to me 

 most nearly related to Bomolocha, but the palpi are very short. 

 They may be known as Euhypena^ TOREUTA(Grote), and Euhypena 

 SORDIDULA (Grote). 



Latrielle seems at first to have used his term Ilerminia in a syn- 

 onymous sense with Hypena, or indeed as embracing the Avhole 

 Group of Deltoids. Treitschke limits it to a number of European 

 species among which is the European Fyralis tentacularis, Lin- 

 naeus. Hiibner and Stephens have accepted many genera for 



'Qr.: 7r^(i-('r et Hypena. '^Qr.: fihhpdc et Hypena. ^Or.: "Ev et Hypena. 



