1910.] moths from northern rhodesia. 495 



Pyralix.e. 

 Bostra thermialis, sp. n. (PL XL. fig. 29.) 



Antennae of male bipectinate with short branches, the apex 

 ciliated. 



Head and thorax purplish red-brown mixed with grey ; tarsi 

 with whitish rings ; abdomen fulvous, suffused with brown at 

 base, the ventral surface chocolate-brown. Fore wing purplish 

 red-brown irrorated with grey and with faint dark streaks in 

 submedian fold and the interspaces of terminal half ; traces of a 

 pale oblique sinuous antemedial line ; some whitish scales forming 

 a slight spot in middle of cell and a discoidal bar ; postmeclial 

 line formed of whitish points with traces of a curved minutely 

 waved dark line on their outer side ; a terminal series of white 

 points ; cilia fuscous brown mixed with whitish. Hind wing 

 with the basal half whitish, the terminal half purplish red ; a 

 curved dark postmedial line defined on outer side by whitish, 

 obsolescent towards inner margin ; cilia whitish with dark lines 

 near base and tips ; the underside with the costal and terminal 

 areas suffused with purplish red and irrorated with fuscous. 



Ilab. N.E. Rhodesia, Serenji distr. (JVeave), 1 c$ , 1 $ type. 

 Exp. 40 mm. 



BOSTRA PERRUBIDA, Sp. 11. (PI. XL. fig. 28.) 



Antennae of male with fasciculate cilia. 



<3 . Head and thorax deep purplish red mixed with some 

 ochreous white ; tarsi ochreous white irrorated with red ; 

 abdomen ochreous white irrorated with dark brown. Fore wing- 

 deep purplish red irrorated with black and some ochreous white ; 

 some ochreous white at base of inner margin ; antemedial line 

 ochreous white defined on outer side by blackish, bent inwards to 

 costa, then erect, waved ; the medial part of costa with ochreous- 

 white points ; postmedial line ochreous white defined on inner 

 side by blackish, dentate, slightly angled inwards at discal fold 

 and incurved below vein 2 ; a slight blackish terminal line ; cilia 

 ochreous white with blackish line near base, the tips tinged with 

 red. Hind wing ochreous irrorated with fuscous, the terminal 

 area suffused with fuscous and some reddish at middle ; post- 

 medial line ochreous defined on inner side by fuscous, minutely 

 dentate, obsolete towards costa ; a blackish terminal line ; cilia 

 ochreous white with blackish line at middle, the tips tinged with 

 red ; the underside with the costal and terminal areas suffused 

 with purplish red. 



Hab. KE. Rhodesia, Serenji distr. (Weave), 3 J type, Petauke 

 distr. (JVeccve), 1 J 1 • Exp. 30 mm. 



Bostra tenebralis Hmpsn. A. M. 1ST. H. (7) xvii. p 348 (1906). 

 (PI. XLL fig. 28.) 



Coxgo, Katanga, Kambove. 



