GKOTE ON NOCTUIDS. 179 



Akzama diffusa, n. sp. 



5. — Eyes naked; front without tubercle; body stout; abdomen ter- 

 minating with a close, mossy tnft, as in some Bomhycidce, and as in ohli- 

 quata. Dusky ochrey; t. a. line black, even, outwardly and rouudedly 

 projected on the cell ; median space about the reniform and before the 

 median shade diffusely shaded with black; reniform much as in vulni- 

 Jica, as also the t. p. line, but this is black, not ferruginous; s. t. line 

 even, angulated in vein 5, followed by blackish shading on terminal 

 space. Terminal line dark, even, interruiDted by the veins. Hind wings 

 warm fuscous, with pale fringe; beneath reddish-fuscous; hind wings 

 paler, with large discal dot, and diagonal, slightly irregular, mesial shade- 

 band. Body concolorous ; thorax shaded with blackish behind the 

 collar. Uxpansioti, 4,7 milMmetres. Mume [Prof . Fernald). Differs struc- 

 turally from obliquata by the smooth front, and seems to be very near 

 vulnijica. 



Mr. Butler, of the British Museum, kindly informs me that Arzama 

 densa has a smooth front. It is thus congeneric with diffusa and vulni- 

 Jica. For oMiquata, with its horned clypeus, I propose the generic term 

 iSpliida. 



DORYODES BISTRIALIS. 



AgripMla Ustrialis, Htibn. Zutr. 775-776. 

 Dory odes acutaria, H.-S. et Guen6e. 



A study of Hiibner's "Zutraege" has satisjfied me that we must revert 

 to an older name for this moth. 



SCOLECOCAMPA BIPUNCTA {Morr.). 



I have identified this species collected by Mr. v. Meske at Albany. 

 It does not seem to me generically distinct from liburna, though hardly 

 more than half the size; the palpal structure is the same. The dot 

 which forms the reniform is represented in the same place on the annu- 

 lus in liburna. 



Ufeus unicolor, n. sp. 



$ . — All the tibiae spinose ; the naked eyes heavily lashed. This form 

 shares all the characters of satyricus or plicatus, the flattened body and 

 hirsute abdomen. It is of a unicoiorous smoky-fuscous, with paler sec- 

 ondaries. The fore wings show no trace of lines or spots; there is a 

 powdering of black scales on the veins, and perhaps a feeble indication, 

 at the usual place of the exterior line. The color is that of satyricus^ 

 the size that of plicatus. Expansion^ 38 millimetres. Illinois {Mr. Bean^ 

 Ko. 666). 



The fore tibiae are spinose in this species diudi plicatus ; they are prob- 

 a.bly also spined in satyricus, though I have not been able to detect the 

 spines in my material of the latter species. 



