474 Annals of the South African Museum. 



^pace grey ; cellspot and a curved outer shade-line darker ; costa 

 grey-speckled ; veins towards termen pale ; hindwing white ; the 

 costa and terminal border brown-speckled; a black spot at bases 

 of veins 3, 4 ; both wings with black terminal dots. 



Head, thorax, and abdomen white ; palpi externally blackish ; 

 tarsi black with the joints white. 



Expanse of wings : 42 mm. 



1 ? Kalk Bay, Cape, April, 1869. 



This may be a pale form of C. ossicolor, the coloration being 

 assimilated to the chalk environment. Antennae with tuberculate 

 fascicles of cilia. 



10. CBNTEARTHEA PALLESCENS, spec. nov. 

 (Plate XL., fig. 8.) 



Forewing : Ochreous grey, thickly and finely dusted with dark ; 

 median vein, vein 1, and terminal veinlets yellowish ochreous, 

 all dotted with black ; a white patch between veins 2 and 3 at base 

 and a smaller one between 3 and 4 ; lines blackish, obscure ; inner 

 at i vertical, outcurved above and below median and again below 

 vein 1 ; outer at -;}, outbent below costa, vertical to vein 4, then 

 inwardly oblique, distinctly lunulate dentate ; a grey subterminal 

 cloud ; terminal spots in the intervals black ; fringe concolorous. 



Hindwing : Pale luteous, with broad grey marginal border ; outer 

 line marked by black vein-dashes ; fringe whitish. 



Underside of forewing greyish luteous, grey-speckled ; a dark 

 outer shade and black terminal dots ; hindwing bone colour, dusted 

 with dark along costa and apical region. 



Head, thorax, and abdomen ochreous grey ; tarsi black with pale 

 joints. 



Expanse of wings : 34 mm. 



1 $ from Smithfield, Orange Free State, September, 1910. 

 (Kannemeyer.) 



Antennae pectinated. 



11. CENTBARTHBA BEUNNEA, spec. nov. 

 (Plate XL., fig. 7.) 



Forewing : Dark brownish fuscous ; the costa narrowly blackish ; 

 a short thick black streak from base along median vein ; the median 

 vein black in outer half, with a short black blotch below it before 

 vein 2 ; an obscure black cloud marking reniform towards end 

 of cell ; inner line at ^, angled outwards above and below median 



