670 JOURNAL, BOMBAY NATURAL HISTORY SOCIETY, Vol. XX. 



Genus Dxpterygia. 



- 1 , Fore wing with whitish patch on tornal area extending 

 to postmedial line. 

 a. Forewing with the postmedial line incurved below 

 vein 4. 

 a 1 . Forewing with the postmedial line strongly in- 

 curved below vein 4 and slightly angled out- 

 wards at vein 1 . . 

 I>\ Forewing with the postmedial line much less 

 incurved below vein 4 not angled outwards at 

 vein I . . 

 h. Forewing with the postmedial line excurved to vein 

 3 and angled outwards at vein 2 to near termen.. 

 B, Forewing without whitish patch on tornal area ex- 

 tending to postmedial line 



1800. DlPTERYGIA INDICA. 



1801. DlPTERYGIA CRISTIFERA. 

 1804. DlPTERYGIA TTMBRIFERA. 

 2052a. DlPTERYGIA 3STCEA. 



Grenus Parastiohtis. 



indica. 



cristifera. 

 umbrifera. 



Type, 

 hepatica. 



lithoxylea. 

 lithoxylea. 

 lithoxylea. 



Parastiohtis, Hiibn. Verz., p. 212 (1827) 

 Septis, Hiibn. Verz., p. 243 (1827) 



Xylophasia, Steph., 111. Brit. Ent. Haust., ii., p. 174 (1829). 

 Xylena, Hiibn., Tent. ined. (nee. Treit.) 

 Proboscis fully developed ; palpi upturned, the 2nd joint reaching about 

 to middle of frons and rather broadly fringed with hair, the 3rd short; 

 frons smooth, with tuft of hair ; eyes large, round ; antennee of male ciliated; 

 thorax clothed with hair and scales mixed, a divided dorsal ridge-like crest, 

 larger on pro and metathorax ; tibise fringed with hair ; abdomen with 

 dorsal series of crests and lateral fringes of hair. Forewing rather long 

 and narrow, the apex rounded, the termen crenulate ; veins 3 and 5 from 

 near angle of cell ; 6 from upper angle ; 9 from 10 anastomosing with 8 to 

 form the areole ; 11 from cell. Hindwing with veins 3 - 4from angle of cell; 

 • r > obsolescent from just below middle of discocellulars ; 6 - 7 from upper 

 angle; 8 anastomosing with the cell near base only. 



A. Forewing with more or less prominent dark streak below base of cell. 

 a. Forewing with dark streak in submedian interspace between ante 

 and postmedial lines. 

 a 1 . Forewing with the orbicular large, oblique 



elliptical . . „ „ . . . . striyidisca. 



b x . Forewing with the orbicular small, round . . flavistiym. 



