LEPIDOPTEEA HETEROCEKA. 37 



Mexico. 



Group 1. 



Corpus robustum. Proboscis brevis. Palpi brevissimi ; arti- 

 culus 3us minimus. Antennjie simplices, sat validae, corporis dimidio 

 uon longiores. Pedes validi ; tibiee posticcB calcavibus parvis. Alae 

 angustJE; anticee apud costam rectae, apice rotuiulata, margine ex- 

 teriore perobliquo. 



Body stout. Proboscis short. Palpi very short; third joint 

 very small. Antennae simple, rather stout, about half the lene:th of 

 the body. Legs stout; bind tibiae with four short spurs. Wings 

 narrow. Fore wings straight in front, rounded at the tips, very ob- 

 lique along the exterior border. 



7. DiPHTERA CAVILLATOR. 



Alba ; thorax nigra maculatus ; alee anticcB lineis transversis ohli- 

 guis undulosis interruptis duplicatis annulisque duohus con- 

 nexis discalibus nigris, disco ex parte cinerascente, ciliis nigro 

 guttatis ; posticcB nigricantes, ciliis albis linea nigra. 



White. Thorax with black spots. Fore wings with black 

 transverse oblique undulating interrupted double lines, and with two 

 connected black discal ringlets ; disk partly grayish ; fringe with 

 black dots. Hind wings blackish ; border white, with a black line. 

 Length of the body 7 lines ; of the wings 18 lines. 



a. Mexico. Presented by E. Doubleday, Esq. 



South America. 



Group 1. 



Antenofe graciles, corporis dimidio paullo longiores. 



Characters of the preceding group. Antenna slender, raljicr 

 more than half the length of the body. 



8. DiPHTERA ILLUDENS. 



Alba ; caput, palpi et thorax nigro inaculata ; alee anticcc nigro 

 conspersce et subfasciatce, lilura guttaque discalibus albis. 



White. Head, palpi and thorax with black spots. Fore wings 

 with numerous black specks, some of which are confluent, and form 



£ 



