LEPIDOPTERA HETEROCERA. 255 



Group 7. 

 Structure of S. Tilice. 



19. Smerinthus decolor. 



Rufo-testaceus, subtus pallidior ; alee anticce pallide rufescente 

 cinerece, fasciis nonnullis angustis undulatis obscurioribus 

 non bene determinates ; posticce pallide rufce. 



Keddish testaceous, paler beneath. Fore wings pale reddish 

 gray, with some slender indistinct undulating darker bands. Hind 

 wings pale red. Length of the body 18 lines ; of the wings 28 

 lines. 



Hindostan. In Mr. Saunders' collection. 



The following species may form a new genus, and perhaps 

 is allied to Calliomma. 



20. Smerinthus? Apulus. 



Mas. Rufus; abdomen nigro fas ciatum ; antennae subpectinatce ; 

 alee angustce, cervino marginatce ; anticce apice truncato in- 

 ciscB, gutta basali fasciisque duabus undulatis nigris, lituris 

 duabus discalibus auratis ; posticce albce. 



Sphinx Apulus, Cram. Pap. Exot. i. 8, pi. 88, f. E. Fabr. Sp. Ins. 



ii. 142, 12; Mant. Ins. ii. 93, 13; Ent. Syst. iii. 1, 360, 14. 



Gmel. ed. Syst. Nat. i. 5, 2374, 55. 

 Colax Apulus, Hiibn. Verz. Schmett. 141, 1513. 



Surinam. 



Country unknown. 

 Group of S. Populi. 



21. Smerinthus princeps. 



Canescens ; antennce albidce ; thorax vitta lata cervina ; abdomen 

 cervinum ; alee anticce gutta discali albida, fasciis duabus 

 lineisque tribus transversis undulatis fusees centibus ; posticce 

 rosece, margine pallide fusco, apud angulum interiorem glau- 

 cescentes striga nigra. 



Colour somewhat hoary. Antennae whitish. Thorax with a 

 broad fawn-coloured stripe. Abdomen fawn-colour. Fore wings 

 with two bands and three transverse undulating lines of a brownish 



z 2 



