DREPANIDAE 



316 



indistinct, 7 anastomosing or connected with 8, 9 and 10 out 

 of 8. ilindwings with frenulum, 5 rather approximated to 4, 

 upper margin of coll half as long as lower so that transverse 

 vein is very oblique, 6 and 7 widely remote, parallel, 8 approxi- 

 mated to 7 beyond cell or anastomosing with cell and 7. 



A family of no great extent, fairly developed in the Indo- 

 Malayan region, but very scantily elsewhere. Imago with 

 body slender, forewings broad ; the species are of moderate or 

 rather small size. 



Ovum roundish-oval, surface finely pitted. Larva rather 

 slender, without prolegs on 13, anal extremity prolonged into 

 a long projection, which is raised in repose. Pupa in a cocoon 

 above ground. 



The three British genera very inadequately represent tho 

 family. Falcaria is a derivative of Drepana, but Cilix belongs 

 to another group of the family, differing much in superficial 

 appearance. 



Tabulation of Genera. 



1. 8 of hindwiugs anastomosing with cell and 7 . 1. Cilix. 



„ „ approximated to 7 beyond cell . 2. 



2. Posterior tibiae without middle-spurs . 2. Falcakia. 



„ ,, with all spurs present . 3. Drbpana. 



1 Cilix, Lch. 

 Tongue absent. Antennae in <$ shortly 



Head smooth, 

 bipectinated, apex simple. Pos- 

 terior tibiae with all spurs 

 present. Forewings : 6 separate. 

 Hindwings : 8 anastomosing with 

 cell and 7 from before middle of 

 cell to beyond middle of 7. 



There is only one kuown 

 species. The frenulum, though 

 present, is very short and slight. 



1. 0. glaucata, Sc. (spinula, 

 Sohiff.) 20-25 mm. Forewings 

 white ; an irregular grey median 

 band, not nearly i-eaching costa, 

 partly tinged with yellow-ochre- 

 ous, marked with silvery-white 

 in veins in disc, and with leaden- 

 metallic and blackish towards dorsum ; a praesubterminal grey 

 line, and postsubterminal series of blackish -grey spots, not 



Nenration of Cilix glaucata. 



