LEPIDOPTERA HETEROCERA. 39 



under side and tarsi black. Fore wings partly tinged with fawn- 

 colour, which is brightest towards the base, adorned with black slen- 

 der irregular oblique angular bands, with black costal marks, and 

 with black marginal spots ; two little ringlets in the disk. Hind 

 wings tawny, with two black bands, whitish towards the borders. 

 Length of the body 11 lines ; of the wings 34 lines. 



Pupa clothed with ferruginous hairs. 



a ? 



9. DlPHTERA BIVARIA. 



Mas. Alba, sat robusta ; thorax nigro maculatus ; alee anticce 

 fasciis duabus obliquis abbreviatis cinereis, lineolis plurimis 

 variis, annulis costalibus incompletis annulisque duabus con- 

 nexis discalibus optime determinatis nigris ; posticce fasciis 

 duabus nigricantibus , disco ex parte cinereo. 



Male. White, rather stout. Thorax with black spots. Fore 

 wings with two gray oblique abbreviated bands, with various short 

 black streaks, with incomplete black costal ringlets, and with two 

 connected very distinct discal ringlets. Hind wings with two 

 blackish bands ; the disk partly gray. Length of the body 8 lines ; 

 of the wings 26 lines. 



In Mr. Saunders' collection. 



Note. — Guenee's genus Prometopus does not seem to be allied 

 to Diphtera, but rather to the second division of Noctuites, or, as he 

 remarks, to the Notodontidce. 



The genus Colocasia which follows Prometopus in Guenee's 

 arrangement, is noticed in this Catalogue, 1st Series, p. 787. 



The following references are added.: — 



1. OxiCESTA GEOGRAPHICA. 



-, Engr. Pap. d'Eur. pi. 174, bis a — d. 



Noctua geographica, Fabr. Mant. Ins. ii. 167, 216 ; Ent. Syst. iii. 



271. Bork. Eur. Schmett. 84. 

 Phalaena-Noctua geographica, Gmel. ed. Syst. Nat. i. 5, 2577, 



1179. 

 Bombvx austera, Scriba, Beit. Ins. 176, pi. 7, f. 5 ; Esp. Schmett. 



pi. 191. Bork. Eur. Schmett. 166. 



E2 



