CYDIMONIDjE. 41 



Guinea and the adjacent islands. They are stout bodied, 

 day-flying Moths, with long palpi, antennae considerably 

 thickened before the tip, and transparent black-bordered wings 

 about three inches in expanse ; towards the base is frequently 

 a large orange patch. The hind-wing cell is divided ; and on 

 the fore-wings, the basal half of the inner margin is much ex- 

 panded,the sub median nervure being bent downwards at this 

 point almost at a right angle, The typical species is Cocytia 

 Boisduval. 



FAMILY VI. CYDIMONID.E (PAGES). 



This Family, which is usually known under the name 

 Uraniida, has been discussed by Westwood in the "Transac- 

 tions of the Zoological Society," x. pp. 507-542. Summing 

 up the work of previous authors, he tabulates the group as 

 follows : 

 A. Fore-wings with the fifth branch of the sub-costal vein emit- 



ting the upper discoidal vein at a considerable distance 



beyond the discoidal cell. 



a. (Cydimon, Dalm.) Palpi with the terminal joint 

 very short. 



* ( Cydimonidcz, Blanchard, Gtienee.) Hind-wings 

 with the second and third branches of the 

 median vein produced into the long tail; 

 second branch of the sub-costal vein free. 

 Genus URANIDIA, Westw. ; type, U. kilus. 



** ( Urania, Blanchard, Guenee). Each of the 

 veins of the hind-wings prolonged into a tail ; 

 second branch of the sub-costal vein of the 

 fore-wing coalescing with the third branch half- 

 way between the cell and the tip of the wing. 

 Genus CHRYSIRIDJA, Hb.; type, U. rhtyhws. 



