LEPIDOPTERA HETEROCEKA. 249 



the third than from the first; third much nearer to the second than 

 to the fourth. Hind wings slightly denticulated, partly emargi- 

 nated. 



11. Smekinthds Gravii. 



Mas. Pallide cinereus ; alee antiece lineis alternis obliquis rectis 

 et undulosis plagisque duabus (una subquadrata interiore, 

 altera elongata exteriore) fuscis, gutta basali nigra guttaque 

 discali albida ; alee posticce lineis duabus fusees centibus, ma- 

 culaque apud angulum interiorem album obscure fusca. 



Smerinthus Grayii, Boisd. MSS. 



Male. Pale cinereous. Antennae whitish, with testaceous 

 branches. Fore wings with alternate straight and undulating ob- 

 lique brown lines, with two more distinct brown patches, one 

 subquadrate on the interior border, the other elongate on the exte- 

 rior border; a black dot near the base, and a whitish discal dot. 

 Hind wings with two indistinct brownish lines, which are nearly 

 parallel to the exterior border ; a dark brown spot by the interior 

 angle, which is white ; ciliae white between the veins. Length of 

 the body 13 lines ; of the wings 34 lines. 



a. Port Natal. From M. Guienzius 5 collection. 



Asia. 



Group 1. 



Corpus crassum. Caput breve, vix conicum. Proboscis dis- 

 tincta, brevissima. Palpi acuti, longiusculi, caput paullo superantes. 

 Antennae serratae, setaceae, thorace non longiores. Thorax bicrista- 

 tus. Abdomen thorace non duplo Ion gins. Pedes validi, brevius- 

 culi, tibiis quatuor longis. Alae longae, lata?; anticae apud costam 

 vix convexae, apice subrotundatee, margine exteriore sat obliquo 

 valde denticulato ; posticae apice rotuudatae, margine exteriore sub- 

 denticulato. 



Male. Body thick. Head short, hardly conical. Proboscis 

 distinct, very short. Palpi acute, extending a little beyond the 

 head, rather longer than usual. Antenna? serrated, setaceous, not 

 longer than the thorax. Thorax with crests on each side. Abdo- 

 meu tapering, less than twice the length of the thorax. Legs 

 stout, rather short; hind tibiae with four long spurs. Wings long, 

 broad. Fore wings very slightly convex in front, somewhat rounded 

 at the tips, rather oblique and much denticulated along the exterior 



