LEPIDOPTERA HETEROCERA. 441 



Genus 57. RUCUMA. 



Fcem. Corpus robustum. Fasciculus frontalis porrectus. Palpi 

 oblique ascendentes, verticem non superantes ; articulus 3us brevis- 

 simus. Alae anticae sublalcata?, costa basi convexa reflexa extus 

 incurva, margine exteriore recto non obliquo. 



Female. Body robust. Frontal tuft prominent. Palpi ob- 

 liquely ascending, not rising higher tban the vertex ; third joint less 

 than one-sixth of the length of the second. Fore wings subfalcate; 

 costa convex and reflexed along the basal half, curved inward exte- 

 riorly ; exterior border straight, except at the tip, not oblique. 



1. RUCUMA RECURVANA. 



Fcem. Cervina, subtus ochracea ; alee antica subconspersce, linea 

 obliqua postica fusca ; posticus ochracea?. 



Female. Fawn-colour, ochraceous beneath. Fore wings indis- 

 tinctly speckled, with a brown line, which extends from two-thirds of 

 the length of the interior border to the disk. Hind wings ochraceous. 

 Length of the body 5 lines ; of the wings 16 lines. 



a. Brazil. From Mr. Wallace's collection. 



2. RUCUMA VAC U ANA. 



Mas. Rufescens, gracilis ; palpi oblique ascendentes, articulo 2o 

 Jimbriato, So brevissimo ; ala anticce subfaleata, linea exte- 

 riore nigricante subfiexa ; posticce cinerea, striga diffusa 

 rufa. 

 Male. Reddish, slender, cinereous beneath. Palpi obliquely 

 ascending, as long as the breadth of the head ; second joint fringed 

 above; third very short. Antennae smooth, slender. Abdomen not 

 extending beyond the hind wings ; apical tuft quadrate. Fore wings 

 subfalcate, with an inflated pouch along the basal part of the costa; 

 an exterior blackish transverse slightly bent line, which is continued 

 across the hind wings; costa convex towards the base, excavated 

 exteriorly ; exterior border slightly angular in the middle, oblique 

 hindward ; fringe cinereous, red about the angle. Hind wings 

 cinereous, with a diffuse red streak extending from the disk to the 



