56 
TERACOLUS. By Dr. C. Aurivillius. 
3. Sub-Group. 
The ornamental spot of the o 71 deep red, blood-red to scarlet, sometimes with a slight violet gloss, or rarely ochre- 
yellow, in this case very large, almost reaching the apex of the cell. Beneath the' forewing has black-brown discal spots 
in 1 b, 3—6 and 8 and the hindwing usually an almost complete, curved transverse row of blackish discal spots. The ?? 
also have a large ornamental spot, which, however, is somewhat lighter than in the and bears black submarginal spots. 
Ground-colour of the upper surface in both sexes white or whitish. 
walkeri. T. walkeri Btlr. The ornamental spot of the c? is about 8— 13 mm. in breadth in cellule 6 and 
forms also in cellule 2 a larger or smaller spot; its distal black border is continued to the anal angle, its 
proximal black border is very broad and posteriorly so widened as to cover completely the base of cellules 
2 and 3. Benguela and German South-West Africa. 
hilde- 
brandti. 
lanxi. 
blanca. 
clara. 
T. hildebrandti. Stgr. (18c). The ornamental spot of the c? is very large, dull ochre-yellow and traversed 
by lighter spots; the base of both wings above broadly black-grey and distally sharply defined; the hindwing 
above with broad black marginal band; the wings beneath white or white-grey with discal spots and black 
streaks at the extremities of the veins; in the ? the ground-colour of the upper surface is yellow. German 
and British East Africa. — lanzi Bart. (18 c) is the winter form and differs in having the black markings 
reduced and the underside of the hindwing and of- the apex of the forewing reddish, finely sprinkled with 
brown. The wings above at. the base are not at all or but little grey-scaled, the marginal band of the forewing 
is broken up into widely separated spots; the ? has above a white (= ab. blanca Suff.) or yellow (= ab. 
clara Suff.) ground-colour. Nyassaland and German East Africa. 
annae. T. annae Wallengr. (18d). The ornamental spot is large and bright carmine; the base of both wings 
above broadly dusted with light grey; the hindwing above almost always with broad black marginal band, 
beneath white or yellowish with long black streaks at the extremities of the veins, in the ? the ground-colour 
sulphurosus is usually white, rarely sulphur-yellow, = ?-ab. sulphurosus Thur. Distributed from Cape Colony to Damara- 
tvallengreni. land in one direction and German East Africa in the other, wallengreni Btlr. (18 d, e) is the winter form, 
which is smaller and has the underside of the hindwing and of the apex of the forewing reddish; the base 
of the upper surface is usually not or but little dark-scaled and the hindwing has only free marginal spots; 
the pair figured are in this respect a transition to the summer form and show how the forms are coimected. 
T. eupompe occurs in German and British East Africa, Somaliland, Equatoria, Abyssinia, Nubia, along 
the southern boundary of the Sahara to the Senegal and in Arabia. It appears to be scarcely sharply 
pseudacaste, distinguishable from annae, but is on an average somewhat smaller and has a different range. — pseudacasle 
Btlr. (= phaenius Btlr., miles Btlr.) is the extreme summer form, which is distinguished by distinct discal 
spots on the under surface, broader black bordering on the proximal side of the ornamental spot, larger size 
and larger, sometimes confluent marginal spots on the hindwing; the ? has often as large and dark a basal 
eupompe. area on the upper surface as the ? of annae ; the ground-colour of the under surface is white. — eupompe 
Kluy (vol. I, pi. 23 c) is the usual summer form and has no discal spots or only indistinct ones on the under 
surface, narrower black bordering to the ornamental spot and no marginal spots on the hindwing or only small 
ones; the under surface is white and the basal part of the upper surface not or but little darkened. — 
dedecorus. dedecorus Fldr. Tbe underside of the hindwing and of the apex of the forewing reddish; the black markings 
of the upper surface even more reduced than in eupoynpe. 
guenei. T. guenei Mab. (18 c) differs from the other species of the subgroup in that the ornamental spot is 
much smaller, in cellule 6 only 5—7 mm. broad and posteriorly bounded by vein 3; its distal black bordering 
is only continued to vein 2; the ? has distinct discal spots on the upperside and no proximal black bordering 
siga. to the ornamental spot. The type-form beneath white with distinct discal spots. Madagascar. — siga Mab. 
is smaller, about 35 mm., and has a somewhat yellowish under surface without discal spots. Madagascar. 
4. Sub-Group. 
The ornamental spot is in all lights distinctly reddish yellow (yellow-red to red-yellow). The ornamental spot of the 
c? is large, at the costal margin produced basad, proximally cut off straight or nearly straight and hence usually assumes 
an almost triangular form; in the summer generation it is narrowly margined with black on all sides, but in the winter form 
usually entirely without black border proximally; the veins at least in the proximal part of the ornamental spot are not black. 
The have a distinct black dot at the end of the cell of the forewing and usually a broad black hindmarginal stripe on 
the forewing and also an angularly interrupted discal band and large (often united) marginal spots on the hindwing. 
