DREPANIDAE 



315 



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

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

 upper margin of cell 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 elsewhei'e. 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 the 

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

 to another group of the family, dittering much in superficial 

 appearance. 



Tabulation of Genera. 



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



„ „ approximated to 7 beyond cell . 2. 



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



„ „ with all spurs present . 3. Dkepana. 



1 Cilix, Lch. 



Head smooth. Tongue absent. Antennae in $ shortly 

 bipectinatcd, 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 known 

 species. The frenulum, though 

 present, is very short and slight. 



1. 0. glaucata, Sc. {spinula, 

 SchifF.) 20-25 mm. Forewings 

 white ; an irregular grey median 

 band, not nearly reaching 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 



Neuration of Cilix glaucata. 



