LEPIDOPTERA HETEROCERA. 31 



simple, slender, about half the length of the body. Abdomen 

 hardly extending beyond the hind wings. Legs rather slender ; 

 hind tibiae with four long spurs. Wings rather broad. Fore wings 

 almost straight in front, rounded at the tips, slightly oblique along 

 the exterior border. 



1. MlCROCCELIA FRAGILIS. 



Albida ; caput et thorax nigro fasciata ; alee anticce apud discum 

 subfuscescentes, lineis transversis angulosis, guttis marginali- 

 bus, macula postica annulisque duobus discalibus nigris. 



Microcoria fragilis, Guen. Noct. i. 34, 35. 



a. New York. Presented by E. Doubleday, Esq. 



2. MlCROCCELIA DIPHTEROIDES. 



Albida ; alee anticce lineis transversis angulosis interruptis, maculis 

 costalibus, guttis marginalibus maculaque subquadrata discali 

 nigris. 



Var. /3. Alee antics lineis guttisque obsoletis. 



Microccelia diphteroides, Guen. Noct. i. 34, 36. 



a — d. Trenton Falls, New York. Presented by E. Doubleday 

 Esq. 



Genus 2. DIPHTERA. 



Corpus plus minusve robustum aut sat gracile. Proboscis b re- 

 vis autbreviuscula. Palpi nonnunquamaseendentes ; articulus 3us 

 brevissimus aut elongatus. Antennae maris nonnunquam pectinatae. 

 Abdomen alas posticas non aut paullo superans. Pedes validi, aut 

 sat validi ; tibiae posticae calcaribus quatuor longis aut longiusculis. 

 Alas anticae latiusculae aut sat angustae, margine exteriore sub- 

 obliquo aut sat obliquo. 



Diphtera, Ochs. ; Treit. ; Boisd. ; Guen. ; Steph. 



Moma, p., Pcecilia, p., et Panthea, Hubn. Verz. Schmett. 203, 



204. 

 Diphtera et Elatina, Duponch. 

 Moma, Diphthera, et Laelia, Herr.-Schceff. Eur. Schmett. ii. 175, 



176. 



Body more or less stout or rather slender. Proboscis short or 

 rather short. Palpi ascending or horizoutal ; third joint elongated 



