44 LLOYDS NATURAL HISTORY. 



they are now universally regarded as Moths, though Entomo- 

 logists are not quite in accord concerning their actual position. 

 Some of the old authors called them " Pages," doubtless in 

 allusion to their liveries of black and golden-green. 



Only two genera are known, one South American, and the 

 other African. It should be noted that green black-striped 

 and swallow-tailed Equitidcz occur in the same countries. 



GENUS CYDIMON. 



Urania, Fabricius, in Illiger, Mag. Insect, vi. p. 279 (1807). 

 Cydimon, Dalman, Vet. Akad. Handl. Stockholm, 1824, p. 



407 ; Guenee, Uranides et Phalenides, i. p. 6 (1857). 

 Uranidia, West wood, Trans. Zool. Soc. Lond. x. p. 521 (1879). 



This genus inhabits Tropical America, from Mexico to 

 Brazil, and several of the West Indian Islands. It may be 

 distinguished from the next by the single long tail on the hind- 

 wings. The name Urania, by which this genus is generally 

 known, cannot be retained, as it was previously given to a 

 genus of plants. There are not many known species, but they 

 are gregarious, and several of them migrate, especially C. ful- 

 gens, Walker. 



All the species are black, with bright green transverse bands, 

 which are sometimes more or less coppery. On the fore-wings 

 there is a broad band, more or less forked towards the costa, 

 and the other bands are linear. On the hind-wings there is 

 generally a row of sub-marginal green markings, sometimes 

 connected. That nearest the apex is bluish, and there are 

 often some whitish markings towards the anal angle. The 

 long tail on the hind-wings is traversed by the upper median 

 nervule, the middle nervule coinciding with the lower side of 

 the tail. The tail is black, generally more or less bordered 

 with snow-white. 



