﻿LEPIDOPTERA HETEROCERA. 1641 



not acute. Proboscis short. Palpi porrect, rather stout; second 

 joint convex above; third securiform, pilose, forming an angle with 

 the second, and less than half its length. Antennae little more than 

 half the length of the body, with very minute seise. Abdomen 

 nearly lanceolate, extending somewhat beyond the hind wings. 

 Legs moderately stout and pilose ; hind tibiae with very long spurs. 

 Wings rather broad» Fore wings acute, subfalcate ; costa straight; 

 exterior border blightly convex, very slightly oblique. 



This genus has not much of the characters of the ThermesidcB, 

 and though allied to Jumcaria has much of the characters of the 

 PoaphilidcB, and may help to connect the two families. 



1. Chadaca atrosignata. 



Fcem. Albido-cinerea, suhtus ex parte fuscescens ; palpi extus 

 nigricante-fusci ; alee nigro conspersce^giittis duahus basalibus, 

 reniformi lunata, lituris discalibus in terioribus, fascia macu- 

 lari exteriore puncthque marginalibus atris ; posticce fusees- 

 cenies. 



Female, Whitish cinereous, partly brownish beneath. Palpi 

 blackish brown on the outer side. Fore wings irregularly speckled 

 with black, with two deep black basal dots ; a group of deep black 

 marks of various size, placed transversely in the disk at half the 

 distance from the base to a deep black lunate spot, which represents 

 the reniform ; at half the distance from the latter to the exterior 

 border an abbreviated band composed of deep black dots and 

 points; marginal points deep black. Hind wings brownish, without 

 marks. Length of the body 7 lines ; of the wings 1 8 lines. 



a, Venezuela. From Mr. Dyson's collection. 



Genus 38. PESSIDA. 



Mas, Corpus gracile. Fasciculus frontalis acutus, latiusculus, 

 porrectus. Proboscis brevis. Palpi pubescentes, longissimi, valde 

 compressi, oblique ascendentes ; articulus 3us linearis, apice rotun- 

 dalus, 2o paullo brevior. Antennae pectinatae, corporis dimidio 

 paullo longiores. Abdomen longiusculum, subcylindricum, apice 

 fasciculatum, alas posticas superans. Pedes graciles, subnudi; 

 tibiae posticae calcaribus longissimis. Alae sat angustae ; anticae 

 apice rotundatae, costa recta, margine exteriore angulato; posticae 

 non angulatae. 



7 c 



