180 MR. W. S. MACLEAY ON THE NATURAL HISTORY OF URANIA, 
accuracy in nomenclature, namely, the attaching a name to a published figure without 
any description ; or, which is quite as bad, giving a loose untechnical description in 
some modern tongue. Our neighbours, the French, are the most to blame for these 
doings, which proceed from sheer indolence ; for surely it does not require a week’s 
study of the lowest rudiments of Latin to word a precise technical description, that 
will both determine the species and be intelligible in every part of the civilized world. 
Let those who approve of the vague diffuseness of their mother-tongue, give, if they 
please, a description in this also; but the Latin character is indispensable if we wish to 
secure credit for our labours. 
I shall now cite Godart’s description of Ur. Sloanus from the ‘ Encyclopédie Métho- 
dique,’ tom. ix. p. 709, in order that we may compare it more readily with my insect, 
which for the present I shall call Urania Fernandine, in compliment to Her Excellency 
the Condesa de Fernandina, a lady whose varied accomplishments comprehend the 
study of natural history. 
“Urania SLOANUS, Godart. 
“« Uran. alis nigris ; anticis utrinqué lineis transversis fascidque aureo-viridibus : posticis 
supra fascid serratd cupreo-rubrd. 
“« Papilio Sloanus Cram. pl. 85. fig. E. F. 
‘* Papilio Sloaneus Herbst, Pap. tab. 51. fig. 3. 4. 
‘« Sloane Jamaic. Hist. 2. tab. 239. fig. 11. 12. 
‘* Cette Uranie ... . a entre deux pouces et demi et trois pouces d’envergure. Ses ailes 
sont noires. Les supérieures ont de part et d’autre six 4 sept lignes transverses d’un 
vert-doré brillant, entre lesquelles il y a une bande bifide ou trifide du méme vert. 
‘Le dessus des ailes inférieures est traversé dans son milieu par une bande d’un 
rouge-cuivreux luisant. Le dessous est d’un vert-doré, avec des mouchetures noires 
sur la céte et vers l’extremité. Les queues sont noires, ce qui distingue encore cette 
espéce de l’Uranie Leilus. 
“« De la Jamaique.” 
Our Cuban insect may be described as follows : 
Urania FERNANDINE. 
Ur. alis nigris ; anticis utrinque lineis transversis auro-viridibus, supra undecim septimd 
bifidéd, subtus sex humeralibus latis septimd bifidd octavd longissimd trifidd reliquis 
apicalibus filiformibus : posticis supra fascia haud serrata et lineis octo brevibus late- 
ralibus transversis auro-viridibus. 
This Urania attains from four to four and a half inches of expansion of wing. The 
head is small and black, with a golden green V in the middle, and a narrow short line 
of the same colour bordering the eye, which has a black coppery lustre. The tergum 
