1910.] MOTHS FROM NORTHERN RHODESIA. 421 



Ophiusa catella Guen. Noct. iii. p. 247 (1852). 



IST.W. Rhodesia, Alala plateau, Kafue R. ; N.E. Rhodesia, 

 Serenji distr., Bangweolo distr. 



Ophiusa porphyrescens, sp. n. (PL XXXVII. fig. 14.) 



Head and thorax brown mixed with purplish grey ; abdomen 

 grey suffused with fuscous brown. Fore wing brown suffused 

 with purplish grey and with dark patches on costal area before 

 the postmedial and subterminal lines ; antemedial line brown 

 slightly defined on each side by whitish, angled outwards below 

 costa, then oblique ; a blackish discoidal line defined on inner 

 side by whitish ; an indistinct dark medial line excurved beyond 

 the cell, then sinuous ; postmedial line dark defined on outer 

 side by whitish, angled outwards at vein 6, oblique to vein 2, 

 then erect, two white points beyond it on costa ; subterminal 

 line indistinct, pale faintly defined on outer side by fuscous, 

 angled outwards at vein 7, then minutely waved and bent out- 

 wards to tornus ; a series of black points just before tornus ; a 

 fine dark terminal line and pale line at base of cilia. Hind wing 

 fuscous brown, the termen tinged with grey ; a fine dark terminal 

 line with black points at the interspaces and pale line at base of 

 cilia ; the underside whitish suffused and irrorated with brown 

 except on inner area, traces of a dark postmedial line excurved 

 below costa, then oblique, and of a double waved subterminal 

 line. 



Hab. N.E. Rhodesia, Chambezi valley (Weave), 2 <S , 1 $ 

 type. Exp. 44 mm. 



Ophiusa proxima Hmpsn. Ann. S. Air. Mus. ii. p. 339,(1902). 



Congo, Katanga, Kambove ; N.E. Rhodesia, Luangwa R., 

 E. Luangwa distr., Lake Bangweolo, Tanganyika plateau, 

 Mansya R. 



Ophiusa palpalis Wlk. xxxiii. 968 (1865). 

 N.E. Rhodesia, E. Luangwa distr., Luangwa R., Chambezi 

 valley. 



Ophiusa algira Linn. Syst. Nat. ed. xii. p. 836 (1766). 

 Congo, Katanga, Kambove ; N.E. Rhodesia, E. Luangwa 

 distr., Chambezi valley, Mansya R., Bangweolo distr. 



Ophiusa derogans Wlk. xv. 1832 (1858). 



N.W. Rhodesia, Alala plateau ; N.E. Rhodesia, Tanganyika 

 plateau. 



Ophiusa erectata Hmpsn. Ann. S. Afr. Mus. ii. p. 341 (1902). 

 N.E. Rhodesia, Luangwa R., Kalungwisi valley. 



Ophiusa abnegans Wlk. xv. 1831 (1858). 



N.E. Rhodesia, Luangwa R., Kalungwisi valley. 



