( 400 ) 



black marginal line, ver}' thin, obliterated between veins, more heavily marked on 

 tails ; upper tail about 5 mm., second 2 mm. long, both blunt. 



¥. Like c?, larger. Wings alwvi'. Forewing : cream}' white patches larger 



than in 6, discal patches R'^ — M'' not separated, patch M' — M- II mm. long in 

 middle, postdiscal spot M' — iP about 3i mm. in diameter, touching discal patch ; 

 besides admarginal spot M- — SM- there is another, minute, admarginal sjwt 



between M' and M-, or a vestige of it. Hindwing : black basal area a little more 



extended ; black submarginal bars heavier than in cJ ; proximal of them there are 

 olive grey patches representing the postdiscal bars, patch (SM') — SM- black, as 

 are sometimes the npper patches ; white submarginal sj)ot8 more or less isolated 

 by these postdiscal clouds from the white discal area ; abdominal fold shaded with 

 black dispersed scales. 



Underside : apical half of forewing somewhat shaded with brown scaling ; 

 discal line of bars of hindwing about 4 mm. from base of M', submarginal black dots 

 larger than in S. 



Length of forewing : S, 44 — 4G mm. 

 „ „ „ ?, 48 — 51 mm. 



Clasper in outline similar to that of tiridatcs and allies, but the apical hook 

 not concave on the upper surface, the carina which runs from the tip of the hook to 

 the inner surface of the clasper not sharply raised ; penis armed with a small dorsal 

 tooth 1 mm. before end, a short, low, carina, ending in a small tooth about A mm. 

 before end, one or two more small teeth between carina and subapical tooth ; penis- 

 funnel more gradually curved than in tiridates, more triangular thau in impcrialis, 

 apical hook very short, vein D^ of hindwing reaching M' about midway between 

 M' and M^ in both sexes. 



Hab. Niger to Congo. In the Triug Museum 2 SS, ~ ? ?, from Warri, 

 Niger Coast Protectorate, April (Dr. F. Roth) ; Gaboon ; Kassai country. 



The c? from the Kassai country (figured on PL VIL) has the admarginal 

 spots C — SC^ of the underside of the hindwing ochraceous. In the ? form 

 Warri the submarginal bars of the hindwing above are large, continuous, the 

 postdiscal black jiatches C — R' are also well developed and fused with the 

 submarginal bars, isolating two white submarginal spots, no white admarginal 

 intersj)ace C — SC-. 



CIt. kadrianas, although standing isolated in the present group of species, 

 is nevertheless more closely allied to Gh. pythodorus, ameliae, and imperialis 

 than to any other Charaxes. In the pattern of the upperside of the forewing 

 it agrees well with the females of Ch. imperialis and ameliae, and with both 

 sexes oi pi/thodorus; the nearly all white hindwing seems at first sight to be a 

 very peculiar character, but is only the outcome of an exaggerated development 

 of white scaling which has already begun in Cli. pythodorus. The proximad 

 movement of the discal luniform bars of the underside of the hindwing is peculiar 

 to this species ; the other bars of the underside, except the large postdiscal 

 patch M- — SM- of the forewing, are more or less feebly marked, agreeing in 

 position fairly well with the species with which we here associate hadrianus. 

 The uniform appearance of the underside, however, is glaringly interrupted by 

 the baud across the hindwing. This band, which is so very prominent on the 

 white ground, must surely have some biological meaning ; the resemblance of 

 hadrianus to Fieridas is not enhanced by it. 



