os 
- URANIDIA. 
URANIDIA. 
Uranidia, Westwood, Trans. Zool. Soc. x. p. 521 (1879). 
Prof. Westwood in his Monograph enumerated eight species of this genus, several 
of which are of very doubtful value. Some of its members have the remarkable 
habit of migrating in large numbers. 
An important paper on the life-history of the Cuban U. boisduwvali ( fernandine, 
Macl..) has been published by Mr. MacLeay, Trans. Zool. Soc. i. pp. 180 et seq. 
1. Uranidia fulgens. (Tab. XLI. fig. 16.) 
Urania fulgens, Walk. Cat. i. p. 5+; Boisd. Lép. Guat. p. 77’. 
Cydimon fulgens, Guen. Sp. gén. des Lép. ix. p. 9° ; Boisd. Rev. et Mag. Zool. 1874, p. 41 *. 
Uranidia fulgens, Westw. Trans. Zool. Soc. x. p. 522°. 
Hab. Mexico! 25, Cordova (Riimeli), Coatepec (Brooks); Guatemata? 4%, in the 
city (Rodriguez), Zapote, Cerro Zunil 4000 feet (Champion); Honpuras, San Pedro 
(G. Whitely, mus. D.), Ruatan Island (Gaumer); Nicaragua, Chontales (Belé) ; Costa 
Rica (Van Patten, mus. D.), Rio Sucio, Volcan de Irazu 6000 to 7000 feet (Rogers) ; 
Panama, Bugaba 800 to 1500 feet, Volcan de Chiriqui 2000 to 4000 feet (Champion).— 
Cotomsta ? 3 4 5, Bogota 1. 
Respecting this species Mr. Schaus writes me as follows :—“I found Urania fulgens 
extremely abundant at Jalapa during certain seasons, and for a fortnight or three weeks 
at a time a perfect succession of specimens would be flying daily from the north to the 
south, but difficult of capture. In Vera Cruz (the town) I secured a large number at 
night: between midnight and two a.M. they would be attracted by the lights, and 
would settle on the white walls of the houses, with their wings spread out, and would 
thus remain motionless. I consider this fact very remarkable, as I had always thought 
that U. fulgens was only a day-flier; but evidently it must continue its migrations at 
night also, or does it return at night to the north? In the daytime I have always 
seen them flying in the one direction.” 
Boisduval states 2:—“ Cette espéce est tellement abondante dans quelques contrées 
du Mexique, que l’on pourrait souvent en prendre par centaines. Il parait qu’a cer- 
taines époques de l’année, elle émigre par bandes nombreuses. C’est probablement 
lorsque les chenilles ont dépouillé tous les arbres d’une localité, que, par un instinct 
naturel, elles vont chercher ailleurs un berceau pour leur progéniture.” 
Migrations of large numbers of examples of this species were also observed by 
Mr. Champion in Chiriqui; and others have been recorded from the Isthmus of Panama 
(cf. ‘Nature,’ viii. p. 536), the specimens in this case travelling from east to west, in 
the months of August and September. 
Mr. Salvin saw numbers of this Urania flying daily during his short visit to the 
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