36 CATALOGUE OF 



Group 2. 



Proboscis brevis. Palpi brevissimi ; articulus 3us minimus. 

 Antennae graciles, simplices, corporis dhnidio longiores. Abdomen 

 alas posticas paullo superans. Pedes validi, pilosi ; tibiae posticae 

 calcaribus quatuor parvis. Alae mediocriter latae ; anticsB apud cos- 

 tam recta?, a pice rotundatae, margine exteriore sat obliquo. 



Proboscis short. Palpi very short ; third joint very small. 

 Antennas slender, simple, more than half the length of the body. 

 Abdomen extending a little beyond the hind wings. Legs stout, 

 pilose ; hind tibiae with four short spurs. Wings moderately broad. 

 Fore wings straight in front, rounded at the tips, rather oblique 

 along the exterior border. 



5. DlPHTEEA JOCOSA. 



Pallide cervina ; thorax fasciis albo-nigris; abdomen vitta nigra 

 albido maculata ; alee anticce fasciis angulatis maculisque 

 nonnullis albo-nigris ; postica nigricantes, ciliis albidis. 



Far. f3. Thorax cervino-albidus ; alee anticce albidce, punctis 

 fasciisque duabus latis (\a diffusa) nigris. 



Diphtera jocosa, Guen. Noct. i. 37, 40. 



a, b. New York, North America. Presented by E. Doubleday, 

 Esq. 



Group ? 



6. Diphtera deridens. 



Mas. Cinereo-albida ; palpi breves, extus fusci, apice albi ; an- 

 tenna breves, pectinate; thorax cinereo nigroque varius ; ala 

 anticce Jlavo tinctce, lineis Jiexuosis lunulisque marginalibus 

 nigricantibus, ocelli discalis pupilla fusca ; postica apud mar- 

 gines albidce, lunulis nigricantibus. 



Diphtera deridens, Guen. Noct. i. 35, 37. 



North America. 



