(92) 



NEW SPHINGIDAE. 



T.Y the Hox. WALTER ROTHSCHILD and K. JORDAN. 



1. Clanis stenosema spec. nov. 



?. Near C. bilineata Walk. (lSGfi). Body deeper ochraceons below. Mid- and 

 hindtibiae white above as in bilineata, spurs also as in that species. 



Wings, above. — Pale costal space of forewing much longer than in bilineata, 

 extending basad to near the first line, and its distal edge being also more 

 oblique and more straight than in bilineata ; grey snbapical patch larger than 



in bilineata. Hindwing centrally broadly black from base to near apex, costal 



margin pale Imff, abdominal margin buff, distal margin brownish tawny-ochraceous. 



Underside.— Oblique apical line of forewing more straight than in bilineata; 

 besides the Mack streak situated behind cell there is an ill-defined black patch upon 

 the cross-veins ; the three vestigial discal lines more oblique than in bilineata. 



Tenth abdominal tergite as in bilineata, the two lobes rather broader. 



Vaginal armature also almost the same as in that species, postvagiual plate 

 feebly rounded in middle ; a small tubercle in front of vaginal oriBce. 



Length of forewing : TO — 73 mm. 



J/ab. Kalim Bnngo, Nias (R. Mitschke). 



2 ? ?. 



2. Polyptychic calcareus spec. nov. 



cT. Body fawn-colour, sides of palpi ami head chestnut. Palpi long, rounded 

 at apex, the joint slightly open. Tongue long and strong. Tibiae spinose ; foretibia 

 with several prolonged spines at the apex ; spurs of mid- and hindtibiae very long, 

 the long apical one of hindtibia surpassing the tibia in length ; first hindtarsal 

 segment twice as long as the tibia. Numerous spines at the apices of the 

 abdominal tergites. 



Wings, upper side. — Forewing dark fawn-colour ; a slight stigma and a faint 

 snbapical patch blackish ; distal margin sinuate below apex, then evenly rounded, 



hindmargin slightly sinuate before angle. Hindwing salmon-buff, distal margin 



washed with blackish brown. 



Underside salmon-buff, washed over with brown ; apical third of forewing 

 blackish brown, this area gradually shading off. Cell of hindwing about one-third 

 the length of the wing, cross-veins oblique, the lower angle of cell being acute, 

 R- from centre. 



Genitalia : Tenth tergite very broad, hardly narrowing apicad, apex bisinuate, 

 with the lateral angles produced into a black, obtuse lobe each ; tenth sternite a 

 very low ridge which appears sinuate on account of the edge being centrally bent 

 upwards. No friction-scales. Harpe only slightly Darrowing apicad, the apex 

 obtuse, bent dorsad, the dorsal edge feebly dentate, the proximal dorsal corner 

 bearing a large tooth. Penis-sheath without free external process, but with a 

 patch i>f thorn-like teeth all pointing towards the right-hand side; a spinose 

 process within the sheath. 



