294 MR. H. DEUCE ON KEW [Mar. 28, 



identical with the male, but with the costal margin of the primaries 

 orange-yellow to the base. 



Expanse 1| inch. 



Hah. Amazons, Tunantins {Bates, Mus. D.) ; Ecuador, Sarayacu 

 {Bucliey, Mus. I).). 



A beautiful species, closely resembling ItJiomia er/la, Hewitson, 

 also from Ecuador. 



DioPTis CHARON, sp. n. (Plate XX. fig. 6.) 



Primaries brownish black, hyaline from the base to the end of 

 the cell and along the inner margin, crossed beyond the middle 

 by a whitish semihyaline band, curved slightly inward near the 

 anal angle. Secondaries hyaline ; the veins black, the apex and 

 outer margin bordered with black ; a rather wide submarginal 

 orange-yellow line extends from the apex to the anal angle. The 

 head, antennae, palpi, thorax, and abdomen on the upperside 

 black ; abdomen on the underside and legs greyish white. The 

 underside of both wings similar to the upperside. 



Expanse Ij inch. 



Hab. Bolivia {BucUey, Mus. D.). 



A distinct species, allied to D. ilenlina, Bates, from which it is 

 at once distinguished by its clear hyaline wings. 



DiOPTIS OTANES, Sp. n. 



Male. Primaries black ; two small streaks from the base hyaline ; 

 a square spot at the end of the cell, a round spot close to the anal 

 angle, and two small spots close to the apex whitish hyaline. 

 Secondaries hyaline ; the costal and outer margins broadly bordered 

 with black; the veins black ; an oval-shaped spot at the end of the 

 cell white. The underside the same as above. Front of head 

 white ; autenuaj, head, thorax, and upperside of the abdomen black ; 

 the underside of the abdomen and legs white ; the upperside of 

 the legs black ; tegulse orange-yellow. 



Expanse ly4^- inch. 



Hab. Ecuador, Kio Napo ( Wliitely, Mus. D.). 



A small species, allied to D. noctiluces, Butler, but with the 

 secondaries quite distinctly marked. 



DiOPTIS PAKDATES, Sp. n. 



Male. Primaries black, partly hyaline near the base ; a small spot 

 at the end of the cell, a large oval-shaped spot beyond nearest the 

 apex, and a small elongated spot close to the anal angle white. 

 Secondaries hyaline ; the veins black ; the costal margin, apex, 

 and outer margin broadly bordered with black. The underside 

 similar to the upperside. The head, antennae, palpi, thorax, 

 abdomen, and legs black ; tegulsD orange-yellow. 



Expanse 1| inch. 



Hab. Colombia, interior (3Ius. D.). 



A very distinct species, allied to D. onega, Bates, and D.phelina, 

 Felder. 



