LEPIDQPTERA HETEROCERA. 
113 
Genus 60. MEDAVA. 
Mas. Corpus sat gracile. Proboscis brevis. Palpi porrecti, 
caput vix superantes; ariiculus 2us supra fasciculatus ; 3us mini- 
mus. Antennas breviusculae, subsetulosae ; articulus lus robustus. 
Abdomen alas posticas longissime superans, fasciculo apicali elon- 
gato. Pedes breves, sat validi. Alse anticae subelongatae, sat an- 
gustae, apiee subrotundatae, margine exteriore perobliquo. 
Male. Body rather slender. Proboscis short. Palpi porrect, 
hardly extending beyond the bead ; 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. Mkdava diminuens. 
Mas. Cinerea ; thorax fusco bifasciatus ; alee anticce lineis plu- 
rimis fuscis denticulatis indistinctis, fascia basali fusca antice 
dilatata , macula basali alba , punetis marginalibus nigricanti - 
bus ; posticce fuscescente-cinerece, 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’ 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 
L 3 
