144 
Synopsis of the Groups. By Dr. C. AiJRiviLLnjs. 
Synopsis of the Groups 
I. Distal margin of the hindwing distinctly angled — almost right-angled — at vein 4. 1. Theobene Group. 
II. Distal margin of the hindwing rounded or uniformly undulate. 
A. Wings above black with common white median band, margined with bluish. 2. Oemilius Group. 
B. Wings never marked as in A. 
a. g: wings above never red or uniform dull golden yellowish. 
f $: forewing above with numerous sharply defined white spots or with sharply defined white 
or whitish median band, which begins at the middle of the costal margin, runs obliquely towards 
the distal margin and posteriorly reaches at most to vein 2. Cell of the forewing above black 
with irregular white or bluish spots. $: distal margin of the fore wing straight or nearly straight; 
wings above with the ground-colour cream-yellow, more or less orange-yellow towards the distal 
margin. 3 . Hyarbita Group, 
ft $: forewing above never both with white spots in the cell and white transverse band running 
obliquely towards the distal margin. distal margin of the forewing incised or the wings above 
coloured otherwise than in the Hyarbita group. 
§ S. Fore wing above almost unicolorous bright dark orange-yellow or hinclwing above with 
a continuous light, dark-bordered median band, which reaches vein 1 b and is but little 
widened anteriorly. $: hindwing above with narrow white median band, sharply defined 
and straight-edged at both sides. 4. Lucasi Group. 
§§ (J. Forewing above never unicolorous dark orange-yellow and hindwing above never with 
light median band. hindwing above without white median band or with this distally 
incised, not straight. 
0. <$. Hindwing at the anal angle at the end of vein 1 b distinctly lobed or produced into 
a short tail. Forewing with the distal margin nearly straight and the apex rectangular 
The §§ (as far as they are certainly known) with the hindwing above from the base to 
far beyond the middle black or blackish, without light markings; distal margin only 
slightly undulate. 5. Lurida Group. 
00. $. Hindwing not produced at the anal angle. $. Hindwing either with the distal margin 
strongly undulate or the upper surface not unicolorous black to far beyond the middle, 
y. Larger species; wing-expanse in the 70—75, in the $ 85—90 mm. Distal margin 
of the hindwing strongly undulate. Hindwing above unicolorous black or blackish 
at least to beyond the middle. 6. Humana Group, 
yy. Smaller species; expanse in the $ 50—62, in the $ 65—80 mm. Distal margin of the 
hindwing not or only weakly undulate. Hindwing above never unicolorous black 
to far beyond the middle. 7. Caenis Group. 
b. A: wings above with the ground-colour red to dull golden yellow. $: wings above with red patches 
or with broad common white transverse band. 8. Sangaris Group. 
1 . Theobene Group. 
This group embraces only a single species, which differs from all others in the shape of the hindwing. This is 
distinctly angled at the extremity of vein 4. The wings have an undulate distal margin, that of the forewing nearly straight 
in the <$, weakly emarginate beyond the apex in the $. Hindmargin of the fore wing not quite straight, but before the 
middle slightly convex and behind the middle, partiolarly in the $, emarginate, so that the hinder angle projects distinctly. 
theobene. C. theobene Dbl. & Hew. (34 d). <$. Wings above in the basal area black-brown to vein 3, or on the 
forewing yellow-brown, then with light yellow median band, which is broadest at the costal margin of the fore¬ 
wing and terminates in a point at vein 1 b on the hindwing; the distal area has the ground-colour orange, but 
is more or less darkened at the distal margin and at the proximal part and encloses yellow submarginal spots and 
a black submarginal lunulate line. The under surface is yellowish, irrorated with small brown dots; it is divided 
into two halves by a fine, sometimes indistinct median line; the lunulate line is distinct. In the $ (34 d) the 
ground-colour on both surfaces is white; on the upper the black-brown basal area is sharply but irregularly 
defined distally and usually encloses two light spots at the apex of the cell on the forewing; the distal area 
is more or less irrorated with brown and encloses an irregularly curved transverse row of blackish spots and the 
black lunulate line, which is often thickened at the interneural folds. The under surface is more or less densely 
striated with brown and has a distinct black-brown median line. Pupa green without spots, but with orange- 
blassi. yellow dorsal keel and the sides of the cremaster yellow. Ivory Coast to Angola and Uganda. ■— blassi Weyrn. 
is the south-easterly form and only differs in the lighter colouring and in having the median band on the upper 
nebetlieo. surface indistinctly defined distally. Portuguese South-East Africa, German East Africa, ab. nebetheo Stiff. 
differs in having the dark median line on the under surface distally accompanied by a similarly coloured trans¬ 
verse band 5—9 mm. in breadth. Mhonda in German East Africa. 
