LEPIDOPTERA HETEROCERA. 113 



Genus 60. MEDAVA. 



Mas. Corpus sat gracile. Proboscis brevis. Palpi porrecti, 

 caput vix superantes; ariiculus 2us supra fasciculatus ; 3us mini- 

 mus. Antennae breviusculae, subsetulosae ; articulus lus robustus. 

 Abdomen alas posticas lonuissime superans, fasciculo apicali elon- 

 gato. Pedes breves, sat validi. Alae anticae subelongatae, sat an- 

 gusta3, apice subrotundatae, margin e exteriore perobliquo. 



Male. Body ratber slender. Proboscis sbort. Palpi porrect, 

 hardly extending beyond the head ; second joint tufted above to- 

 wards the tip ; third extremely minute. Antennae rather short, very 

 minutely setulose ; first joint robust. Abdomen extending very far 

 beyond the hind wings; apical appendages and tuft elongate. Legs 

 short, rather stout; hind tibiae with four moderately long spurs. 

 Wings slightly elongated, rather narrow. Fore wings slightly 

 rounded at the tips; costa straight ; exterior border slightly convex, 

 very oblique. 



1. MED AT A DIMINUENS. 



Mas. Cinerea ; thorax fusco bifasciatus ; alee anticce lineis plu- 

 rimis fuscis denticulatis indistinctis, fascia basalt fusca antice 

 dilatata, macula basalt alba, punctis marginalibus nigricanti- 

 bus ; postica? fuscescente-cinerea?, fimbria albido-cinerea, 



Male, Cinereous. Thorax with two brown bands. Fore 

 wings with several acutely denticulated mostly indistinct brown 

 lines ; a white basal spot succeeded by a brown band, which is 

 dilated along part of the costa; marginal points blackish. Hind 

 wings brownish cinereous ; fringe whitish cinereous. Length of 

 the body 5 lines; of the wings 10 lines. 



a. Ega. From Mr. Bates 5 collection. 



Genus 61. NACHABA. 



Mas. Corpus sat robustum. Proboscis mediocris. Palpi 

 validi, porrecti, capitis latitudine vix breviores; articulus 2us supra 

 fasciculatus ; 3us conicus, parvus. Antennae glabrae, breviusculae, 

 sat graciles. Abdomen lanceolatum, alas posticas paullo superans. 

 Pedes laeves, breviusculi, sat validi ; tibiae posticae calcaribus 

 quatuor longissimis. Alae anticae subelongatae, apice subrotundatae. 



Male. Body rather stout. Proboscis moderately long. Palpi 

 stout, porrect, nearly as long as the breadth of the head ; second 



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