36o LEPIDOPTERA. 



A. Fore wings yellow. 



B. Fore wings with slender red transverse lines. 



X. citrayo. 

 B-. Fore wings with purple basal and hind marginal bands. 



X. aiirarjo. 

 W. Fore wings with partial or complete central band of 

 purple-red blotches. 



C. Collar yellow. X. cemgo. 

 C^. Collar purple. X. silago. 

 A'^. Fore wings yellow-brown or dull ochreous. 



D. Hind margin of fore wings obtuse; base of reniform 



stigma blackish-brown. X. gilvago. 



D-^. Hind margin retuse, a white spot in the base of the 



reniform. X. ocellaris. 



1. X. citrago, L. — Expanse 1^ to 1| inch. Fore wings 

 rich yellow, with three distinct, slender, rust-red transverse 

 lines, nervures and stigmata outlined with the same. Hind 

 wings yellowish-white. 



Antenna of the male rather thick, simple, coarsely ciliated, 

 dull brown ; palpi long, porrected, fulvous-yellow, apical 

 joint long, rather drooping ; eyes naked, black ; head strongly 

 tufted, pale fulvous ; thorax rich yellow, faintly ridged in 

 the middle lengthwise, the ridge edged with fulvous ; fas- 

 cicles yellowish-white ; abdomen very pale yellow, with a 

 purple spot, simulating a crest, on the back of each of the 

 first three segments ; lateral and anal tufts broad, deeper 

 yellow. Fore wings moderately broad ; costa gently arched ; 

 apex sharply angulated ; hind margin very minutely crenu- 

 lated, straight and but little oblique to the middle, then 

 bent and more oblique, but scarcely rounded off, so that the 

 anal angle is distinct ; dorsal margin straight ; colour rich 

 yellow dusted with rust-red ; basal line partial, broken into 

 faint streaks, rust-red ; first line of the same colour, slender, 

 angulated but fairly erect, almost joined on the dorsal margin 

 to a strongly-marked, oblique, and rather direct tawny central 



