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6. Description of an apparently U ml escribed Moth of the Fantili/ 

 LYMANTEIADAE (Le/ii^njif, ni ). By A. J. T. JANSE. 



GKN. OLAPA, \V1I<. 

 1764. List Lep. Br. Mus., vii, p. 1856. 



OLAPA NIGRIBASIS, u. sp. 



. Head, shaft of aiiteimae, abdomeu above and on underside, 

 and legs maize-yellow (iv) ; hairs on tegulae and patagia maize- 

 yellow mixed with orange-buff hairs (iii) ; hairs on frous, femora and 

 tibiae of forelegs, and on tibiae of midlegs orange-buff ; hairs of palpi 

 and those round the eyes black ; fore-femora outerside of tibiae, and 

 nearly the whole of the tarsi black ; mid-femora with a few black 

 hairs on tibiae, spurs and tarsi black on the outerside ; hind-tibiae with 

 a few black hairs at end, spurs streaked with black, tarsi black on the 

 outer-, orange-buff on the inner-side ; branches of antennae ochra- 

 ceous-buff (sv), each ending in two bristles. 



Upperside of forewiug whitish, costal and inner marginal area 

 broadly tinted with sulphur-yellow (v) ; base of costa narrowly edged 

 with black for about one- fourth ; black scales just beyond discocellula 

 between veins 4 and 5, 6 and 7 ; cilia ivory-yellow (xxx) ; hindwing 

 and its cilia quite white. 



Underside of both wings white, with the costal area thinly covered 

 with sulphur-yellow hairs. 



Habitat. One specimen from Salisbury (Dr. Gr. M. Melle). In the- 

 collection of the South African Museum. 



Exp. 46 mm. 



This species is very closely allied to 0. flabellaris, from which it can 

 easily be distinguished by the black scales on the forewing and also its 

 black costa. 



