( 308 ) 



Expanse of wings : 26 mm. 



One 6 from tlip Katagnikwa River, TTnyoro, May l^'-'T (|1r. Ansorge). 



Distinguislied at ouce by the pale postmediau fascia with the brown Hue along 

 its centre. The example described is rather worn ; two specimens in the British 

 Mnsenm Collection, apparently of the same species, are very much darker. 



52. Petrodava olivata ab. perfusca nnv. 



In tliis form not only is the npperside of both wings olive-grey, but the 

 whole of the underside is dull olive, slightly freckled with darker ; the onter line 

 blackish, thick and diffuse, straight on fore wings, curved on hindwings, a pale 

 blnish grey snbapical patch on hiudmargin, tlie apical fringes white. 



One S from Kaligire, Unyoro, January 189« (Dr. Ansorge). 



This is the antithesis of the ab. insularla from Madagascar, in which the 

 yellow ground colour of the underside of the type form invades the uppcrside also. 



53. Petrodava subapicata sp. nov. 



Forewinr/s : deep dull yellow, with a few brown speckles ; the costa cream- 

 colour, strignlated with brown; first line curved at about one-third, marked only 

 by a brown spot at costa and inner margin ; outer line from costa at four-fifths 

 to two-thirds of inner margin, marked only by a deep brown bilobed blotch 

 beneath costa, and a slight oblique brown streak at inner margin ; cell-spot very 

 faint ; fringe yellow. 



Himlwinc/s : with a brown cell-spot, a brown-red postmediau nearly straight 

 macular line, followed by a few dark brown scales and a spot towards costa. 



Underside the same, the frecklings more conspicuous. Head, thorax, and 

 abdomen yellow ; forelegs and palpi speckled witli brown. 



Expanse of wings : 40 mm. 



One <J from Natal. 



54. Semiothisa coufuscata sji. nov. 



ForewiiKjx : dull whitish, but the ground colour is almost hidden by dense 

 brownish fuscous striation and suffusion ; the costal area tinged with yellowish 

 and striated with blackish ; the lines dark brown, at one-fourth, one-half, and 

 two-thirds respectively, the first angled in cell, the third on vein 6, the middle 

 line thicker and more waved ; cell-spot distinct, brown ; marginal third generally 

 more deeply suffused, the submarginal line very indistinct, but usually marked 

 by a pale spot towards apex ; marginal line slightly darker ; fringe concolorous 

 with a clearer base. 



Ilindwim/s : with cell-spot large and distinct, tiie median sliade curved round 

 it ; submarginal line more visible. 



Underside whitish, with the striations and markings clearer ; the lines thicker 

 and more diffuse ; both wings with a broad submarginal fascia beyond outer line. 

 Head, thorax, and abdomen concolorous with wings. 



Expanse of wings : 20 — 32 mm. 



Twenty-five 6S from various localities in Unyoro (Dr. Ansorge). 



The forewings are slightly bent at vein 4 ; the hindwings with a decided tootli 

 in middle. 



