LEPIDOPTERA HETEROCERA. 195 



Genus 38. IMMA. 



Mas, Corpus robustum, dense vestitum. Proboscis brevis. 

 Palpi validi, pubescentes, ascendentes, articulo 2o vix arcuato, 3o 

 lanceolato. Antennae simplices, graciles, corporis dimidio longiores. 

 Abdomen alas posticas non superans, pilis basalibus longis, fascicu- 

 lis tribus apicalibus. Pedes validi, dense fasciculati, calcaribus 

 longis. Alae anticee sat angustae, angulo apicali subrotundato, mar- 

 gine exteriore perobliquo ; posticae apud marginem interiorem dense 

 lanuginosa. 



Male. Body stout, densely clotbed. Proboscis short. Palpi 

 stout, pubescent, ascending ; second joint hardly curved ; third lan- 

 ceolate, a little less than half the length of the second. Antennae 

 simple, slender, more than half the length of the body. Abdomen 

 not extending beyond the hind wings, with long hairs towards the 

 base; tbree apical tufts, one dorsal, the other two lateral. Legs 

 stout; femora fringed, somewhat dilated; tibiae densely tufted; 

 spurs long. Fore wings rather narrow ; apical angle slightly 

 rounded ; exterior border very oblique. Hind wings densely lanu- 

 ginous along the interior border. 



1. Imma eugosalis. 



Mas. Cervina, subtus albido-testacea ; ala? lineis obsoletis ; anticee 

 litura discali exteriore fusca ; postica murina, areola discali 

 magna fere nuda subrugulosa. 



Male. Fawn-colour, whitish testaceous beneath. Abdomen, 

 fore wings beneath and hind wings mouse-colour. Wings with the 

 lines wholly obsolete. Fore wings with a brown mark in the disk at 

 two-thirds of the length ; marginal points brown. Hind wings 

 with the discal areolet large, almost bare, minutely rugulose. 

 Length of the body 3^ lines ; of the wings 8^ lines. 



a. Ceylon. Presented by R. Templeton, Esq. 



Genus 39. ECHANA. 



Mas. Corpus sat robustum. Proboscis breviuscula. Palpi 

 rectangulati, compressi, subfiinbriati ; articulus 2us erectus, vix 

 arcuatus ; 3us lanceolatus, 2o non brevior. Antennae subsetosae, 

 corpore paullo breviores. Abdomen alas posticas non superans, 



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