510 PROF. J. O. WESTWOOD ON THE URANIIDA. 
therefore, to retain Hiibner’s name, with a slightly altered termination, for uniformity, 
into Alcidia. 
The name Chrysiridia, given by Hiibner to P. ripheus, is a happy one, and may be 
retained for that brilliant insect; but it has unfortunately happened for Hiibner’s last 
name, Mania, that it has been employed by Treitschke for a genus of Noctuide, for 
which it is still retained by Guenée and H. Doubleday; I therefore have the less hesi- 
tation in altering Hiibner’s name into Manidia, and in rejecting the subsequent name 
given to it of Sematura. 
In 1825 the Swedish naturalist Dalman, in his monograph of Castnia, neglected 
the arrangements of Fabricius and Hiibner, blaming the former for inserting P. orontes, 
Linn., in the genus Castnia, with the observation “ que vero species minime hujus 
generis sed ad NycTALIDEAS nostras pertinet, etsi transitum memorabilem Papilionides 
inter et Nyctalideas bene offert. Genera huc pertinentia sequenti modo distribuere 
tentavimus : 
“ Cypimon; Ripheus, Sloaneus, Leilus et forte Lavinia Fabr.=Gen. Urania Fabr. Latr.' 
Nyctatemon: Orontes, Patroclus. 
Srematura: Lunus, Afgistus Fabr., Empedocles Herbst.” 
To which he adds Thysania with agrippina, odora, &c., as types, evidently identical 
with the Noctuideous genus Erebus, and also doubtfully the genus Agarista of Leach 
(Zool. Misc. i. tab. xv.). 
It will be seen that the genus Cydimon of Dalman is equivalent to the Chrysiridia 
and Urania of Hiibner, that Nyctalemon, Dalm.,= the Lysse and Alcides of Hiibner, 
and that Sematura, Dalm., = Mania of Hubner. 
In 1840 (Introd. Mod. Class. Ins. ii. p. 369) I separated these insects into a single 
family placed between the Sphingide and Anthroceride. 
In 1854 Mr. Walker, in his Catalogue of the Collection of the British Museum 
(Lepidoptera Heterocera, Pt. 1), adopted the genera Urania for Leilus and Rhipheus, 
Nyctalemon for Orontes and Patroclus, to which he added Lunus and its allies (gen. 
Sematura, Dalman), and Coronis; which last, notwithstanding its intimate relation- 
ship with Sematura, Lunus, &c., he placed in the family Castnii, as Latreille had 
done. 
Lastly, in 1857, M. A. Guenée (Hist. Nat. Ins. Lep. tom. ix.) has arranged all the 
preceding genera into one group, Uranides, at the head of his Phalénites (Geometra, 
Linn.), divided into four families : 
1. Cyprmonipm: Gen. Cydimon (Leilus &e.). 
2, Uranipa: Gen. Urania (Rhipheus). 
3. Nycraramonipa : Gen. Alcidis (Orontes) and Nyctalemon (Patroclus &c.). 
4, Sematunipm: Gen. Sematura (Lunus &c.) and Coronis (Orithea &c.). 
+ «Obs. Uranize nomen pro insectorum genere nullo modo admittendum, etenim jamdiu plantarum genus, 
notissimum quidem, sie yocavum.” 
