LEPIDOPTERA HETEROCERA. 471 



minimus. Antennae in utroque sexu simplices. Abdomen alas pos- 

 ticas non superans. Pedes sat validi ; tibiae posticae calcaribus 

 duabus apicalibus minimis. Alae breviusculae, latiusculae; antica? 

 angulata?, venis la et 2a inferioribus basi approximatis, 3a superiore 

 trifurcata. 



A link between the preceding genus and the JSoctuida. Body 

 rather short, moderately stout, nearly linear and cylindrical. Palpi 

 stout, straight, porrect, a little shorter tban the head ; third joint 

 very small. Antennae simple in both sexes. Abdomen not extend- 

 ing beyond the hind wings. Legs rather stout; hind tibiae with two 

 very minute apical spurs. Wings rather short and broad. Fore 

 wings distinctly angular ; third superior vein trifurcate ; first and 

 second inferior veins near together at the base. 



1. VlRBIA MENTIENS. 



Obscure fusca ; abdomen luteo bivittatum ; alee antica vitta subtus 

 lutea ; posticce lutea, nigro late marginata. 



Dark brown. Proboscis testaceous. Abdomen with a broad 

 luteous stripe on each side. Fore wings beneath with a luteous 

 stripe which extends from the base to beyond half the length, and 

 is dilated and obliquely truncated at the'tip. Hind wings luteous, 

 with broad black borders which are broadest and angular at the tip 

 of the inner margin, the latter is luteous. Length of the body 4 

 lines; of the wings 13 lines. 



a. Venezuela. From Mr. Dyson's collection. 



2. VlRBIA LUTEILINEA. 



Fusca ; antenna nigra ; abdomen luteo bivittatum ; alee antica 

 plus dimidio basali supra f err ugineo subtus luteo, linea costali 

 rufescente ; postica lutea, nigro late marginata. 



Brown. Palpi at the base and proboscis testaceous. Antenna* 

 black. Abdomen on each side with a slight luteous stripe which 

 tapers from the base towards the tip. Fore wings ferruginous above 

 and luteous beneath for more than half the length from the base, 

 and with a reddish line along the costa. FJind wings luteous with 

 broad black borders which are of equal breadth from the tip of the 

 fore border to the tip of the inner border. Length of the body 4 

 lines; of the wings 11 lines. 



a. Mexico. From M. Hartweg's collection. 



2 T 



