Genera and Species of the family Pyralidae. 7 



Avith cinnamon-buff and auburn (ii) scales, so as to leave only the 

 ground-colour at the basal area and forming the antemedial and 

 medial lines; these lines are broad and diffused and the medial 

 line is somewhat zig-zagged and inwardly oblique ; postmedial 

 line beginning as a broad patch on costa of ground-colour, then 

 diflfused and with a fuscous irroration at end of cell ; subterminal 

 line of ground-colour, narrow and mostly well defined, oblique and 

 double from costa to vein 6 (outer line zig-zagged) then single 

 and parallel to termen and zig-zagged very sharply at the veins, 

 then to tornus; some fuscous irroration on the veins before it 

 between veins 6 and 3; the outer subterminal line is continued 

 beyond the lobe as an ill-defined line before the terminal line, which 

 is auburn and narrow; apical lobe very blunt; cilia of ground- 

 colour, with a transverse auburn line at one-third and tipped with 

 the same colour and some fuscous. Hind- wing uniformly smoke 

 grey (xlvi), with a fuscous irroration on the veins and along the 

 termen; cilia cream-colour with two smoke grey lines across it as 

 far as from Ic to apex. 



Underside : — both wings whitish grey ; fore- wing irrorated at 

 costal half and towards termen with fuscous ; cilia as above. One 

 co-type (from Umvuma, 20 xii. 1917) has the fore- wing somewhat 

 darker and the markings less distinct as if it were somewhat greasy, 

 which, however, is not the case. 



Exp. Type 23 mm. ; co-types 22-23 mm. 



Hah. Female type, Umvimia, Dec. 1918 (Carnegie); 

 two female co-types from Umvuma, 20. xii. 1917 (Janse); 

 one female co-type in Transvaal Museum from Waterberg 

 district (Transvaal) in 1899, by Jutrzencka; three other 

 specimens from Shangani (S. Rhodesia), by Miss Chamber- 

 lain in Nov. 1919. 



This species was identified for me at the British Museum 

 as a Prionapteryx, but closer examination has shown me 

 that it should be placed in Mesolia, a genus vip to now 

 only known from Asia, Australia and St. Helena, so that it 

 is new to Africa. The apical prominence is more like that 

 in Mesolia, vein 4 is absent in both wings (in Prionapteryx 

 it is present in the fore-wings) ; 7 is stalked with 8, 9 ; 

 hind-wing with upper median far from vein 8 and vein 7 

 curving upwards so as to anastomose with 8; proboscis 

 fully developed; outer spurs shorter than inner, but not 

 in all cases, as much as half the length of the inner one; 

 antennae of female laraellated and shortly ciliate. 



