SIERRA LEONE LEPIDOPTERA. 33 



Fam. ZEUZERIDtE. 



Zeuzera boisduvalii. 



Zeuzera boisduvalii, Herr.-Schaff. Aussereur. Schmett. i. 

 f. 167. 



Cossus toluminus. 



Cossus toluminus, Druce, Proc. Zool. Soc. Loud. 1887, 

 p. 684. 



Fam. NOCTUIDtE. 



Opigena accipiter, sp. nov. (Plate II. fig. 7.) 



Primaries above brown ; the basal third blackish, crossed 

 near the base and outwardly shaded by two transverse greyish 

 lines ; some greyish and velvety brown scales at the end of 

 the cell; an irregular submarginal dark shade, on either 

 side of which are some greyish scales. Secondaries light 

 brown ; the veins somewhat darker ; an indistinct transverse 

 whitish shade. Underneath, the wings are dirty brown, with 

 a median and a submarginal transverse dark shade; a dark 

 spot on the middle of the costal margin of the primaries, and 

 a still larger spot on the costal margin of the secondaries 

 nearer the base. Body dark grey. 



Expanse 43 millim. 



Ochropleura talda, sp. nov. (Plate III. fig. 1.) 



Primaries dark grey, lighter on the outer margin ; the 

 orbicular and reniform very indistinct; between the two 

 some velvety black scales, and beyond the reniform some 

 similar scales ; along the outer margin some dark longi- 

 tudinal streaks between the veins. Secondaries white; the 

 fi-inge at the apex smoky. Body grey ; two dark brown 

 spots on the collar. 

 Expanse 25 millim. 



Perigea africana, sp. nov. (Plate II. fig. 10.) 



Primaries brown ; at the base of the costa a white spot 

 and another below it ; just before the orbicular a white 



