Biitterjlies of Southern Africa. 341 



bordered with black costally (most widely beyond ex- 

 tremity of discoidal cell), and outwardly from 3rd median 

 nervule to anal angle ; ferruginous patch occupying hind- 

 margin from apex to sub-median nervure, irregularly 

 convex inwardly, very broad on discoidal nervules, nar- 

 rowing abruptly at apex, but more gradually to its lower 

 extremity. Hindioinrj : blue fills entire disc and discoidal 

 cell, and is bordered to a moderate width with black along 

 costa and hind-mai'gin (the apical portion being broadest, 

 and the hind-marginal narrowest) ; inner-marginal border 

 broadly fuscous up to 3rd median nervule, but blue-scaled 

 along sub-median nervure ; anal-angular lobe and tail 

 ferruginous, densely grey-scaled ; edging base of lobe 

 superiorly, and sometimes extending for a little distance 

 along hind-margin, a fine streak of blue scales ; on lobe 

 a spot of unirrorated ferruginous. Underside. — Ferru- 

 ipnous-hrown, in most parts very finely and densely irro- 

 rated Avith yellowish and grey scales ; in both wings 

 (better defined in hindwing) an ochreous-yellow line 

 closing discoidal cell, and a transverse streak of the same 

 colour beyond middle. Foreioiiig : the streak only extends 

 from near costal edge to between 3rd and 2nd median 

 nervules ; costa thinly edged with yellow ; a conspicuous 

 cloud of yellow scales occupies costa between streak and 

 apex ; inner-margin pale-grey, gradually fading into 

 ground-colour superiorly ; hind-marginal border darker 

 ferruginous, not (or very thinly) irrorated. Ilindiving : 

 darker ferruginous before transverse streak ; the streak 

 itself well-defined, continuous from costa to below 1st 

 median nervule, where it is slightly broken and abruptly 

 angulated, and is thence tvJiHe to inner-margin and along 

 its edge to base ; between this portion of the streak and 

 anal angle, dense greyish-white irroration ; a thin greyish 

 line along hind-margin, indistinct superiorly ; spot on 

 lobe conspicuous, tinged with crimson. 



$. Blue much less brilliant; its area much smaller, so 

 that its black-bordering is broader, especially in hindwing, 

 where, in apical region, this is wider than inner-marginal 

 fuscous. Hindwing : hind-mai'ginal streak of blue scales 

 more marked, extending to 3rd median nervule or a little 

 further. Underside. — Quite as in S. 



This very beautiful Lgcanid is recognized at once from 

 its congener, the West African M. Silenus, Fab. (Alcides, 

 Cram.), by (1st) the greatlg-enlarged field of blue, and 

 (2nd) the ferruginous bar along hind-margin of fore- 



