HTPSID^E. 



495 



Family HYPSIM1. 



Proboscis present. Palpi smoothly scaled ; the third joint long 

 and naked. Legs smooth ; mid tibiae with one pair of spurs, hind 

 tibiae with two pairs. Frenulum present. Fore wing with vein 1 a 

 separate from 1 b • 1 c absent ; 5 from near the lower angle of cell. 

 Both sexes with the membrane above inner margin forming a 

 cavity with a ridge above it, probably for producing stridulation by 

 friction against a ridge of membrane below the costa of hind wing. 

 Hind wing with veins 1 a and b present, 1 c absent ; 5 from near 

 lower angle of cell ; 8 free from the base and connected by a bar 

 with 7 at middle of cell. 



Larva with all the fore legs present, and sparsely covered with 

 long hairs. 



Cocoon slight. 



^M&XUJiJJJl 



Fig. 329. — Larva of Hypsa alciphron. \. (From Moore, Lep. Ceyl. ii, 

 p. 102, fig. 16.) 



Key to the Genera. 



a. Fore wing with no areole, veins 6 and 7 stalked . 1. Euplocia, p. 495. 



b. Fore wing with vein 7 from an areole. 



a'. Palpi with the 2nd joint reaching above [p. 496. 



vertex of head 2. Pebidrome, 



b'. Palpi with the 2nd joint reaching vertex of 

 head. 

 a 2 . Hind wing with veins 6 and 7 from angle of 



cell 3. Hypsa, p. 498. 



b 2 . Hind wing with veins 6 and 7 stalked .... 4. Digama, p. 504. 



Genus EUPLOCIA. 

 Euplocia, Hiibn. Verz. p. 172 (1818). 



Type, E. membliaria, Cram. 



Range. Burma ; Siam ; Andamans ; Java ; Philippines. 



Palpi upturned ; the second joint reaching vertex of head, the 

 third long and slender. Antenna? minutely ciliated. Fore wing 

 with a costal fold on upperside in male usually containing a glandular 

 tuft of long hairs ; veins 6 and 7 stalked ; 8 and 9 stalked ; no 

 areole. Hind wing with veins 6 and 7 from the angle of cell. 



