LEPIDOPTERA HETEEOCEEA. 239 



the disk, whitish along the costa, with a brown discal stripe, with an 

 exterior oblique curved whitish band, with a brown apical spot, and 

 with a silvery white discal dot. Hind wings brownish, paler and 

 with a dark brown streak by the interior angle, fawn-colour along 

 the exterior border. Length of the body 16 lines ; of the wings 34 

 lines. 



a. North China. From Mr. Stevens' collection. 



Genus 37. SMEEINTHUS. 



Corpus robustum. Caput mediocre aut parvura. Proboscis 

 brevissima aut nulla. Palpi breves aut brevissimi. Antenna? 

 setaceae. Abdomen mediocriter longum. Alae anticae margine ex- 

 teriore dentato aut inciso. 



Sraerinthus, Latr. Hist. Nat. Ins. iii. 401 ; Curt. ; Steph.; Boisd. 



Sphinx, p., Linn.y fyc. 



Merinthus, Meigen. 



Paonias, Mimas, et Polyptychus, Hubn. Verz. Schmett. 141, 142. 



Colax? Hubn. Verz. Schmett. 141. 



Body robust. Head small or of moderate size. Proboscis 

 very short or none. Palpi short or very short. Antennae setaceous. 

 Abdomen moderately long. Fore wings with the exterior margin 

 dentate or excavated. 



Europe. 



Group 1. 



Proboscis distincta, brevissima. Antenna? thorace longiores. 

 Pedes breves, validi ; tibiae posticae calcaribus quatuor abbreviatis. 

 Alae mediocriter longae et lata? ; anticae acuminata?, vix falcatae, 

 apud costam subrectae, margine exteriore mediocriter obliquo con- 

 cavo subangulato; posticae subtruncatae, subrotundatae. 



Proboscis distinct, very short. Antennae longer than the tho- 

 rax. Legs short, stout ; hind tibia? with four short spurs. Wings 

 moderately long and broad. Fore wings acuminated, hardly 

 falcate, nearly straight in front ; exterior border moderately ob- 

 lique, slightly concave for near three-fourths of its length, when it 

 forms a very obtuse angle, and is slightly concave from thence to 

 the interior angle; interior border slightly concave towards the tip. 

 Hind wings with the costa slightly convex towards the tip, which is 

 somewhat truncated and rounded. 



