70 Mr. F. Walker's Characters of vn described Lepidopfera 



VII. Characters of undescribed Lepidoptera in the Colltc- 

 tion of W. W. Saunders, Esq. By F. Walker, 

 Esq., F.L.S. 



[Read 5th Nov., I860.] 



Fam. DIOPTID^. 



The family Lithosiidce, as it is noticed in the Brit. Mus. Cat. Lep. 

 Het. 1st Ser., Pt. 2, contains several distinct families, one of which 

 may be termed Dioplidce, the principal genus being Diopfis, of 

 which the following species forms a new section. 



Genus Dioptis, Hubn. 

 Mas. — Corpus gracile. Palpi porrecti, brevlssimi, caput non 

 superantes ; articulus 3us brevissimus. Antennae sub-pec- 

 tinatae, apice simplices. Abdomen longnm. Pedes breves ; 

 tibiae posticae calcaribus brevissimis. Alse araplse. 

 Male. — Body slender. Palpi porrect, very short, not extend- 

 ing beyond the head; 3rd joint very short. Antennaa slightly 

 pectinated, simple at the tips. Abdomen long. Legs short ; hind 

 tibiae with very short spurs. Wings ample; 2nd inferior vein 

 nearer to the 1st than to the 3rd in the fore-wings, and nearer to 

 the 3rd than to the 4th in the hind-wings. 



Dioptis hyelosioides. 

 Mas. — Atra, pectore albo-maculato, abdomine nigricante viridi 

 vitta alba supra tenui subtus latissima, alis vitreis limpidis 

 sub-pubescentibus, venis cyaneo-nigro-marginatis. 



Male. — Deep black. Pectus with white spots. Abdomen 

 blackish-green, with a slender white stripe above and with a broad 

 white stripe beneath. Wings vitreous, colourless, very minutely 

 pubescent, bordered with bluish-black ; veins black, more or less 

 broadly bordered with bluish-black. 



Length of the body 9 lines; of the wings 24 lines. 



Bogota. 



Fam. EUSCHEMID.F. 



Genus Euschema, Hubn. 

 Euschema abrupta. 

 Mas. — Ochracea, palpis porrectis, antennis sat late pectinatis, 

 thorace fascia fuscescente-cinerea, alis anticis fuscescente- 

 cinereo-trivittatis, dimidio apicali fuscescente-cinereo fasciis 



