292 ^JK. n. DRUCE o>' xew [Mar. 28, 



KEOLAmoxA, gen. uov. 



Male. Antennae rather long, deeply pectinated. Palpi, the third 

 ioint long. Head small ; thorax and abdomen stout, the abdomen 

 extending beyond the wings ; legs long, slender ; hind tibia with 

 two pairs of small spurs. Primaries long, narrow ; the costal 

 maro-in straight; apex rounded. Secondaries long, rounded at the 

 apex and anal angle. 



FemaU. Antennae simple. 



Type : Pericojris hnzara, Butl. 



This genus is allied to Lauron. 



NEOLAUEOifA OTiA, sp. n. (Plate XIX. fig. 17.) 



Female. Primaries black, crossed from the costal margin by two 

 ^vide cream-coloured bands ; the costal and inner margin near the 

 base, and two small spots near the anal angle, cream-colour. 

 Secondaries cream-colour, the veins black ; the costal margin, apex, 

 and outer margin broadly bordered with black ; a large cream- 

 coloured spot close to the apex. Underside the same as the upper- 

 side, but paler in colour. Head, antenna?, palpi, thorax, and 

 upperside of the abdomen black ; underside of the abdomen cream- 

 colour ; tegulse black, edged with cream-colour ; legs black, gre^asli 

 on the underside. 



Male. Unknown. 



Expanse, $ , 2j inches. 



Hab. Ecuador, Sarayacu (Buclcleii, Mvs. D.). 



A very distinct species, quite unlike any other known to me. 



DiOFris, Hiibn. 

 DioPTis CHABiLA, sp. n. (Plate XX. fig. 1.) 



Male. Primaries black, hyaline at the base and partly along the 

 inner margin ; a whitish hyaline band crosses the wing bevond the 

 middle nearest the apex. Secondaries hyaline ; the veins black ; the 

 costal and outer margins broadly bordered with black. Underside 

 very similar to the upperside, but the costal margin of both wings 

 near the base greyish white. Head, antenna;, palpi, thorax, and 

 abdomen black ; the underside of the abdomen, thorax, and legs 

 greyish white ; the collar yellow. 



Expanse 1| inch. 



Hah. British Guiana, Essequibo River (Whitely, Mtis. D.). 



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



DioPTis EORAiMA, sp. n. (Plate XX. fig. 2.) 



Male. Primaries hyaline : the costal margin, apex, outer and 

 inner margin black ; the anal angle and part of the outer margin 

 streaked with orange-yellow ; a rather large whitish band close to 

 the apex. Secondaries hyaline ; the veins and outer margin black ; 

 a wide orange-yellow band edged with black on the inner side 

 extends from the apex to the anal angle. Underside very similar 

 to the upperside, but Avith the costal margin of both wings near 



