LEPIDOPTERA HETEROCERA. 155 



Fawn-colour, generally with a slight cinereous tinge, paler be- 

 neath. Thorax with two brown stripes. Abdomen with four lateral 

 pale ferruginous stripes, which are slightly gilded. Fore wings 

 slightly freckled with brown, with two small dark brown spots near 

 the tip of the costa, with a dark brown discal dot, and with a dark 

 brown spot near the interior angle ; a broad brown very slightly ob- 

 lique stripe, which is interrupted by hoary lines ; an angular whitish 

 streak near the tip, and some lilac marks along the exterior border, 

 which forms a very obtuse angle in front of the middle, and is very 

 slightly concave from thence to the tip; fringe brown in front of 

 the veins. Hind wings brown, with a pale fawn-coloured stripe 

 near the exterior border. Length of the body II — 12 lines; of the 

 wings 22 — 24 lines. 



a, b. Silhet. From the Rev. J. Stainforth's collection, 

 c, d. Silhet. Presented by E. Doubleday, Esq. 

 e. Silhet. From Mr. Sowerby t s collection. 



2. Panacra Mydon. 



Cinerea, subtus lutea ; caput et thorax ferragineo-fusco biviitata ; 

 abdomen ferrugineum, vittis duabus argenteo-luteis, plagaque 

 basali subquadrata albida aut testacea, necnon maculis diffu- 

 sis lateralibus posterioribus nigricantibus ; alee ferrugineo- 

 fuscce, anticce marginibus cervinis, cinereo ex parte nebulosce, 

 rnaculis duabus costalibus, una apud angulum interiorem 

 vittaque obliqua obscure fuscis, gutta discali nigra ; postica? 

 margine interiore fasciaque brevi diffusa Jlavescentibus. 



Deilephila Mydon, Boisd. MSS. 



Cinereous, mostly luteous beneath. Head and thorax with two 

 ferruginous-brown stripes. Abdomen ferruginous, with a luteous 

 silver-streaked stripe on each side, and with a large subquadrate 

 basal whitish patch, behind which there are two rows of diffuse 

 black spots. Wings ferruginous-brown. Fore wings mostly fawn- 

 colour, and freckled with brown along the borders, partly clouded 

 with cinereous, with two dark brown spots on the costa, with one by 

 the interior angle, with a dark brown oblique stripe, and with 

 a black discal dot ; exterior border very oblique, hardly concave 

 towards the tip in the male, distinctly concave in the female. 

 Hind wings yellowish along the interior border, and with a diffuse 

 yellowish band extending along half the length from thence to the 



