( 436 ) 



band and black postdiscal bars cinnamon rufons, as a rnle darker than basal area ; 

 postdiscal bars C— M- transverse, not or slightly curved, rather thin, not dilated 

 iu middle, edged olive distally ; submarginal iutersj»ace chestnut, seldom rufous 

 chestnut, mnch wider than in the other forms, bar R' — R^ 5 mm. distant from 

 submarginal bar, much shaded with white distally, interspaces M' — SM- olive, with 

 bine and white submarginal dots ; sul)marginal bars blackish olive, transverse, 

 linear ; wing more heavily dentate than iu the continental forms, tail R' 7 to 8 mm. 

 long, tail M' 3 to u mm., tail M- 6^ to 7i mm. 



?. Winffs above less blaish than in <?.— — Forewing : costal margin more or 

 less tawny ; band pale orange, white from M- backwards, posteriorly edged with 

 pale blue at both sides, bnt especially pro.\imally, 10 mm. broad at SM", patch 

 W — M' 7 mm. long, oblique proximally, patch R- — R' extended to bar U, patch 

 Ri — R- about twice as long as broad, with two discal spots in front, besides the 

 two rounded postdiscal spots SC* — R', discal spot S(J* — R' rather larger, produced 

 distad along R' and mostly joined to the postdiscal spot, discal spot HV* — SC linear, 



an orange streak also in front of HC* ; marginal spots pale orange. Hindwing : 



band broadly bordered with bluish white proximally, basal lialf of abdominal fold 

 also milky white, pale blue distal border of band gradually narrowing costad ; blue 

 submarginal dots M^ — SM^ heav)-, fused together as a rule, dot M' — M^ often 

 present ; admarginal line orange between, cream}' buS' or blnish at veins, nearly 

 continuous, or iuterrupteil at the veins, often obsolete from C to R', anal portion as 

 in (?, but wider. 



Underside : as iu S , but submarginal area of hindwing more olive and white, 

 the chestnut scaling very much reduced, sometimes almost entirely replaced by 

 olive and white ; tails and teeth as in t?, rather broader at base and longer. 

 Length of forewiug : c?, 34 — 41 mm. 

 „ „ ? , 42—46 mm. 



Penis sometimes with a second, very small, tooth situated behind the ordinary 

 tooth present in all forms of brutus, agreeing with that of nataleiisis. 



Hub. Madagascar, apparently all over the island in suitable localities ; a forest 

 insect. In the Tring Bluseum 8 c?<J, 2 ? ¥, partly from Morondawa. 



The female is very different from those of the continental brutus on account of 

 the development of the discal interstitial patches of the forewiug above ; this con- 

 spicuous difference, however, does not justify specific separation, because traces of 

 the discal parts of those j)atches are fonud also in continenta.\ Jemales. 



P. Black j)ostdiscal bars of hindwing below absent, or represented by elongate 

 triangular, longitudinal spots, their grey distal borders present, upper 

 ones long, curved proximally towanls the veins, the lines in the same 

 cellule forming distally an acute angle, but do not always reach one 

 another. 



/{'. Bars in basal half of underside all black, not centred grey. 



58. Charaxes castor. 



Papilio Equen Achirug aietor Cramer, Prip. Exot. I. p. Gl. t. 37. f. c. D. (1775) (Guinea). 

 PapiUo Eques Achivus poUux, Fabricius (non Cramer, 1775), Gen. Ins. p. 251 (1776). 



S S . Body above olive, with a faint russet tint anteriorly, white dots on head 

 more or less obvious, line behind eye conspicuous ; underside olive black, faintly 

 russet ; palpi with a very broad white stripe, breast obliipiely striped huffish white. 



