LEPIDOPTERA HETEROCERA. 1181 



which is brown with gray hands; Dear its tip there is a jagged 

 streak, coloured like the straight band, with which it forms an acute 

 angle; the wing on the outside of the above band is greenish, and 

 between it and the exterior border there is a double ferruginous 

 zigzag band. Hind wings testaceous beyond the straight band, 

 and with two rows of small ferruginous spots ; under side of the 

 wings with the fawn-colour and testaceous replaced by luteous ; the 

 bands reddish ferruginous, disposed much like those on the upper 

 side. Length of the body 8 — 11 lines ; of the wings 28 — 34 lines. 



Var. p. Fore wings mostly grayish brown within the straight 

 band ; the tawny and ferruginous marks mostly replaced by brown ; 

 under side also darker coloured. 



a, b. Silhet. From Mr. Sowerby's collection. 



Genus 16. OXYTENIS. 



Mas. Corpus sat gracile. Proboscis brevis, distiucta. Palpi 

 validi, porrecti, subascendentes, caput superantes ; articulus 3us 

 minimus. Antennae mediocriter pectinatae, thorace longiores. 

 Pedes validi ; tibiae posticae calcaribus quatuor longissimis. Alae 

 latissimae ; antieae apud costam valde convexae, apice falcatae, mar- 

 gine extei iore subconvexo et subobliquo ; posticae latiores ; abdo- 

 men longe superantes. 



Syssaura, p., Hiibn. Verz. Schmett. 150. 

 Oxytenis, H'ubn. Verz. Schmett. 150. 



Male. Body rather slender. Proboscis short, distinct. Palpi 

 stout, porrect, pilose, slightly ascending, extending some distance 

 beyoud ihe head ; third joint very minute. Antennae moderately 

 pectinated, rather longer than the thorax. Abdomen extending to 

 half the breadth of the hind wings. Legs stout, clothed with short 

 hairs ; hind tibiae with four very long spurs. Wings very broad. 

 Fore wings very convex along the costa, falcate at the tips, slightly 

 convex and oblique along the exterior border; interior angle much 

 rounded ; three inferior veins ; first and second contiguous at the 

 base ; third remote. Hind wings much broader than the fore 

 wings. 



This genus has some affinity to the Saturnidce ) and also to the 

 Geometrites. 



PART V. 2 N 



