LEPIDOPTERA HETEROCERA. 83 



Body moderately stout. Proboscis short. Palpi approximate, 

 porrect, extending a little beyond the head ; third joint conical, 

 very minute. Antennae long, pubescent in the male. Abdomen 

 keeled in the male, and terminated by a quadrate tuft of hairs, 

 generally extending as far as the hind wings. Hind tibiae hardly 

 incrassated, much incrassated in some species. Wings stout, entire, 

 yellow or ochraceous, generally speckled, with a discal point, and 

 with an oblique line. Fore wings not falcate. Hind wings short, 

 rounded ; interior angle prominent. 



Guenee gives as a character of this genus that the tibiae are not 

 or but slightly swollen nor furrowed, but in some species they are 

 very thick. 



South America. 



A. Alae non trilineatae. 



A. Alse anticae liiiea interiore obliqua aut nulla. 

 A, Alae posticae margine exteriore non flexo. 

 a. Alae linea argenteo non marginata. 

 i. Alae violaceo tinctae. 



* Alae linea nigricante. - - transitata, Guen. 

 ** Alae linea non nigricante. - - optivata, Guen. 



ii. Alae violaceo non tinctae. 



* Caput rufescens. 



f Alae anticae subtus albo non maculatae. 



erythrocephalata, Guen. 

 jf Alae subtus albo maculatae. - Briasaria, Walk. 

 ** Caput non rufescens. 

 f Alae nigro strigatae. 



J Alae non bilineatae. - - rutilaria, Huhn. 

 \l Alae bilineatae. - helvaria, Herr.-Sch. 



•J-f Alae ferrugineo strigatae. 



J Alae posticae non maculatae. 



§ Alae fimbria apice nigra. - resignata, Guen. 

 §§ Alae fimbria apice non nigra. 



■h- Alae posticae macula nulla apicali. 



<&> Alae anticae margine exteriore rotundato. 

 Phoebeata, Guen. 

 «?>i&i Alae anticse margine exteriore recto. 



Carthamata, Guen. 

 h— h Alae posticae macula apicali. 



«£* Alae luteae. - cerocampata, Guen. 

 <&>«?> Alae fulvae. - - sterrhata, Guen. 



