LEfrlDOPTERA HETEROCERA. 357 



Black, whitish beneath. Head mostly white above. Palpi and 

 legs whitish beneath. Thorax with four testaceous stripes. Abdo- 

 men luteous above with two black stripes which become obsolete to- 

 wards the base. Wings luteous, with a slight yellow streak in each. 

 Fore wings black towards the tips with a marginal row of pale yel- 

 low dots ; a large black reniform spot in the disk adjoining an oblique 

 abbreviated yellow band towards the tip. Hind wings with black 

 borders, and a black rounded spot in the disk, corresponding to that 

 in the fore wings. Length of the body 7 lines ; of the wings 20 

 lines. 



a. Para. From Mr. Bates' collection. 



Genus 18. ERCHIA. 



Fcem. Corpus gracile, lineare, fere cylindricum, sat longum. 

 Palpi porrecti, graciles, capite multo longiores ; articulus 3us line- 

 aris, acuminatus, 2o gracilior et duplo brevior. Antennae graciles, 

 extrorsum subincrassatae. Pedes breves, graciles ; tibiae calcaribus 

 nullis. Alae lata? ; anticae venis duabus inferioribus ; posticae abdo- 

 men multo superans. 



Allied to the Rhopalocera. Body slender, linear, nearly cylin- 

 drical, moderately long. Palpi porrect, slender, much longer than 

 the head; third joint linear, pointed, more slender than the second 

 and nearly half its length. Antennae more than half the length of 

 the body, very slightly increasing in breadth from the base nearly to 

 the tips. Legs short and slender ; tibiae without spurs. Wings 

 broad ; fore wings with two inferior veins ; hind wings extending 

 much beyond the abdomen. 



1. Erchia extranea. 



Nigro-fusca, luteo-hirta; palpi et pedes subtus albidi ; abdomen 

 subtus testaceum ; alee anticce macula magna lutea fasciaque 

 lata obliqua flava ; posticce lutece, margine lato nigro maculis- 

 que postich albidis. 



Blackish brown. Palpi and legs whitish beneath. Proboscis 

 whitish. Antennae black. Thorax and abdomen with luteous hairs. 

 Abdomen testaceous beneath. Fore wings with a large luteous spot 

 which extends from the base and occupies more than half the breadth 

 from the hind border and less than half the length and ends very 

 obliquely ; beyond it there is a very broad oblique pale yellow band 

 which does not reach the hind border. Hind wings luteous, partly 

 yellowish in front, with a black border which is very broad behind 



