LEPIDOPTERA HETEROCERA. 1471 



4. Eriogaster UNDDLOSA. 



Fcem. Cinerea; antenna: fulvce ; abdomen ftiscescens, apice niyro 

 lanuf/inosum ; pedes fulvi, pilis longis ei nereis ; at<c basi jtilis 

 longis vestiti, antica fasciis qaatuor obliquis undulosis nitidis, 

 postiecB pallidiores. 



Female. Cinereous. Antennas tawny. Abdomen brownish, 

 black and lanuginose at the tip. Legs tawny, clothed with long 

 cinereous hairs. Wings with long hairs at the base. Fore wings 

 with four oblique undulating whitish bands, of which the second is 

 broader than the others. Hind wings a little paler than the fore 

 wings. Length of the body 9 lines ; of the wings 22 lines. 



a, b. Rio Janeiro. From Mr. Stevens' collection. 



Group 2. 



Mas. Corpus crassum. Antennae late pectinatae, dimidio fere 

 apicali mediocriter pectinatae. Alae sat angustas ; anticae apud cos- 

 tarn recta?, apice rotundata?, margine exteriore subrccto perobliquo, 

 angulo exteriore obtuso distincto. 



Male. Body thick. Antennae shorter than the thorax, deeply 

 pectinated to rather beyond half the length, moderately pectinated 

 from thence to the tips. Abdomen extending for one-third of its 

 length beyond the hiud wings. Wings rather narrow. Fore wings 

 straight along the costa, rounded at the tips, very oblique and 

 almost straight along the exterior border; interior angle obtuse, 

 distinct; first and second inferior veins contiguous; third very 

 remote. 



5. Eriogaster indecisa. 



Mas. Cinerascens ; antenna fulva ; abdomen albidum fasciis 



cinereis ; ala albi da, fasciis indistinctis obliquis subundulosis 



pallide cinerascentibus ; antica subtus obscuriores. 



Male. Cinereous. Antennae tawny. Abdomen with whitish 



^ bands. Wings whitish, with several indistinct oblique slightly un- 



* dulating pale cinerous bands, which are most apparent in the lore 



| wings. Fore wings darker beneath. Hind wings almost white 



towards the base. Length of the body 9 lines ; of the wings IS 



lines. 



This may be the male of E. undulosa. 

 a, b. Brazil. From M. Becker's collection. 



