NOVTTATES ZOOLOGICAE XXV. 1918. 141 



Genus Libyphaenis nov. 



Type : L. virescens. 



Proboscis fully developed ; palpi upturned, the 2nd joint reaching to vertex 

 of head and moderately scaled in front, the 3rd as long as the 2nd ; Irons with 

 rounded prominence ; eyes large, roimd ; antennae of male with fasciculate 

 cilia ; thorax clothed almost entirely with scales, the metathorax with depressed 

 crest ; tibiae moderately fringed with hair ; abdomen with dorsal series of crests. 

 Forewing with the apex rounded, the termen evenly curved and not crenulate ; 

 veins 3 and 5 from near angle of cell ; 6, 7 from ceD ; 8, 9, 10 stalked ; 11 from 

 cell ; the male with shght groove below stalk of veins 8, 9, 10 and slight swell- 

 ing above it below the costa. Hindwng with the cell rather short ; veins 3, 4 

 from angle ; 5 obsolescent from middle of discocellulars ; 6, 7 from upper angle ; 

 8 anastomosing with the cell near base only. 



In key differs from Leucosiqma, etc., in the frons having a rounded prominence. 



3578a. Libyphaenis virescens n. sp. 



o . Head and thorax sap-green mixed with dark brown ; antennae black- 

 brown ; palpi whitish and black, the basal joint ochreous white with two black 

 points at extremitj', the tip of 3rd joint white ; abdomen dark browTi tinged 

 with grey, the crests and anal tuft brownish white ; pectus, legs, and ventral 

 surface of abdomen ochreous white, the tibiae and tarsi banded dark brown and 

 white, the abdomen with blackish segmental lines towards extremity. Fore- 

 wing sap-green tinged with grey and irrorated \vith black-browTi, the veins of 

 terminal area with dark streaks ; a punctiform blackish subbasal line from 

 costa to submedian fold ; a faint oblique sinuous brown antemedial line ; a 

 black-browii bar from middle of costa connected with a small spot in the cell, 

 then a sinuous shade to above inner margin ; a broad black-brown shade beyond 

 the cell from costa to vein 4. with the double minutely waved blackish post- 

 medial line filled in with green near its outer edge, obhque to vein 4 and incurved 

 below vein 2, some white points with black-brown between them beyond it 

 on costa ; subterminal line indicated by a black-brown shade before it to vein 

 6 and some diffused brown beyond it, then a black-brown spot beyond it at 

 middle, small spots below veins 4 and 3 and a shade below vein 2 ; a terminal 

 series of black bars ; cilia brown and wliitish. Hindwing dark brov^Ti ivith a 

 greyish tinge ; ciha fuscous with a fine whitish line at base and some white at 

 tips. Underside of forewing fuscous brown, the costal area ochreous whitish 

 towards base and with two marks at middle followed by white points ; hind- 

 wing white irrorated with red-brown, a small black discoidal lunule and dark 

 mark below the cell, a double waved postmedial Une, obhque towards costa, 

 the inner line black-brown and rather maculate, forming a spot below vein 3, 

 the outer shght and red-brown, the veins of terminal area streaked with brown, 

 with dark marks on termen towards apex and a subterminal shade below discal 

 fold, a fine dark terminal fine. 



Hub. S. Nigeria, Yaba (Macfie), 1 S type. Exp. 30 mill. 



3659a. Acronycta luteola n. sp. 



?. Head and thorax ochreous brown mixed with whitish, the head with 

 some darker bro\vn ; antennae black-brown mixed with white ; abdomen whitish 



