432 sir george f. hampsox on [Mar. 1, 



line indistinct, pale, excurved below vein 7 and at middle ; a fine 

 yellowish line at base of cilia. Hind wing grey-brown, the cilia 

 brownish at base, white at tips ; the underside whitish, the costal 

 half tinged with rufous, a curved punctiform postmedial line 

 from costa to vein 3. 



2 . Head, thorax, and fore wing deeper and more uniform 

 rufous, the last with the ante- and postmedial lines defined by 

 white. 



Ab. 1. tf $ . Head, thorax, and fore wing dark purplish brown. 



Hab. N.W. Rhodesia, Alala plateau {Neave), 1 J , 3 $ , 

 Kapopo (iVeave), 2^,1$ type ; jST.E. Rhodesia, E. Luangwa 

 distr. {Neave), 1 6 , 2 $ , Luangwa valley {Neave), 1 <5 , 1 $ , Ka- 

 lungwisi distr. {Neave), 1 $ , Bangweolo distr. {Neave), 5 5 , Mansya 

 R. {Neave), 7 d\ 1 $ , Mpika {Neave), 1 S ) Mashonaland, 

 Salisbury {Marshall), 1 d . Exp. 36-40 mm. 



GOSMOPHILA RETRACTA, Sp. n. (PI. XXXVII. fig. 20.) 



J. Head and thorax red-brown ; abdomen grey-brown; pectus, 

 femora, and ventral surface of abdomen whitish. Fore wing silky 

 red-brown with a greyish olive tinge and slight fuscous irroration ; 

 antemedial line indistinct, double, waved ; a blackish point in 

 middle of cell and two blackish and white discoidal points ; 

 postmedial line whitish, obliquely excurved from costa to vein 

 3, then retracted to before lower angle of cell and obliquely 

 excurved to inner margin ; an indistinct pale subterminal line 

 with small obscure fuscous spots on its inner edges, excurved 

 below vein 7 and at middle. Hind wing grey-brown, the 

 terminal area rather darker ; cilia with a fine white line at base 

 and white tips; the underside white tinged and irrorated with 

 brown, a brown postmedial line from costa to vein 5. 



Hab. Congo, Katanga, Kambove {Neave), 3 S type ; N.W. 

 Rhodesia, Kapopo {Neave), 1 S . Exp. 36 mm. 



Mesogenea persinuosa, sp. n. (PI. XXXVII. fig. 10.) 



2 . Head and thorax red- brown with a white streak on vertex ; 

 palpi white at base and tips ; abdomen grey-brown ; pectus, legs, 

 and ventral surface of abdomen white slightly irrorated with 

 brown, the last with blackish sublateral points on terminal 

 segments. Fore wing red- brown sparsely striated with black ; 

 antemedial line white, slightly angled outwards below costa, then 

 somewhat inwardly oblique ; a black point in middle of cell ; 

 postmedial line white, very strongly bent outwards from below 

 costa to vein 4, then retracted to origin of vein 2 and very 

 oblique to inner margin ; faint traces of a sinuous dark sub- 

 terminal line ; a fine whitish line at base of cilia. Hind wing 

 greyish suffused with brown, the terminal area darker; a fine 

 pale line at base of cilia which are white at tips ; the underside 

 with the costal area grey striated with black. 



Ab. 1. Head, thorax, and fore wing brown tinged with grey, 

 the head and thorax without the white streak ; fore wing with 



