Paid. 29. XI. 1910. 
TERACOLUS. % Dr. C. Aurivittius. 
57 
T. achine is larger than the following species; the ornamental spot of the cf is also larger, somewhat 
more pointed and more deeply incised at the extremities of the veins; the ornamental spot of the ? consists 
of two rows of spots, which are separated by the submarginal black lunate band; the proximal row is often 
only indicated; at least four seasonal forms may be distinguished, which, however, intergrade without any 
sharp dividing-lines. — gavisa Wallengr. (19d cf, e ? as omphale ) is the extreme summer form, distinguished yavisa. 
by a strong development of all the black markings and by the veins on the under surface being black at 
least distally; in the ? the black hindmarginal stripe of the forewing is very broad and covers the greater 
part of the cell: the discal band of the hindwing is likewise very broad and united with the marginal band; 
the ground-colour of the under surface in the cf is white, in the ? more or less yellowish. — achine Cr. achine. 
(19d, e) represents the normal summer form; in the cf the ornamental spot is proximally bordered with 
black and the hindmarginal stripe of the forewing is distinct; the marginal spots of the hindwing are not 
infrequently free and the under surface is white without black veins ; in the ?? the black markings are less 
developed than in gavisa. - antevippe Bdv. is intermediate between the summer and winter forms; the ornamental antevippe. 
spot of the cf is proximally without black bordering, the hindmarginal stripe of the forewing is usually 
entirely absent, the under surface is, however, white. — ithonus Btlr. (15 f, 19c, d) is the normal winter form, iihonus. 
and is at once distinguished by the reddish, brown-sprinkled under surface; cf: the ornamental spot usually 
without proximal black bordering, but distally distinctly margined with black; the forewing usually without 
black hindmarginal stripe. — Iuederitzi Stiff, is merely a transitional form to simplex Btlr. (15 f), which luederitxi. 
is the extreme winter form occurring in very dry districts; the ornamental spot of the cf is entirely without 1 
black bordering proximally and at. the costal margin, distally there are only short streaks or spots at the 
extremities of the veins; the under surface is reddish and minutely irrorated. — The species occurs everywhere 
on the continent of Africa south of the Sahara except in the West African forest region. 
T. lais Btlr. (= halyattes Btlr.) (19e) is smaller than achine and in the cf the ornamental spot has a lais. 
broad proximal border and the under surface is reddish; in the ? the inner row of spots of the ornamental 
patch is entirely absent; the hindmarginal stripe of the forewing is usually not developed. Whether the smaller ? figured 
belongs to this species, as Miss Sharpe indicates, seems tome doubtful. Distributed from Damaraland to Natal. 
T. evanthe Bdv. (19 f). The ornamental spot of the cf is distally broad and obtusely rounded, forming evanthe. 
an arc smaller than a semicircle; proximally it is black-margined, with yellow scales intermixed with the 
black colour; hindmarginal stripe of the forewing and marginal spots of the hindwing entirely absent in the cf. 
In the ? the apical spot of the forewing is unicolorous black or more or less marked with red-yellow spots; 
hindmarginal stripe of the forewing entirely absent; marginal spots, however, sometimes occur on the hindwing. 
The under surface is usually tinged and irrorated with red. Madagascar. 
T. evanthides If oil. (19 f) is much, smaller than evanthe and in both sexes with smaller marginal dots evanthides. 
at the extremities of the veins of the hindwing and yellowish under surface; the ornamental spot of the ? 
is large and bordered with black, the ground-colour of the upperside in the ? yellowish. Island of Aldabra. 
5. Sub-Group. 
The ornamental spot as in the preceding group is always reddish yellow; that of the cf is in the summer forms 
broadly bordered with black all round and consists of small, short spots, almost separated by the black veins; but in the 
winter form it is of irregular, not triangular, shape; it is always more or less deeply incised on the proximal side in cellules 
3 and 4 and proximally usually distinctly but narrowly margined with black, sometimes, however, entirely without black 
bordering. In the ?? the black dot at the end of the cell is usually entirely absent or very minute; only in evippe and 
pattern is it distinct, but in these, on the other hand, the ornamental spot is absent. When the ornamental spot of the $ 
is present, it is almost always simple (consisting of one row pf spots) and proximally broadly bordered with black. 
T. evippe L. (18e). cf: ground-colour above and beneath white; ornamental spot with very broad evippe. 
black bordering; forewing without hindmarginal stripe, but usually with median dot; hindwing with large 
marginal spots, but without transverse band. ?: apical spot of the forewing large, unicolorons black or with 
indication of light spots: ab. ocale Bdv. (18e); forewing with distinct median dot and with or without hind- ocale. 
marginal stripe; hindwing with marginal spots or marginal band and often also with transverse band. — The 
only species of Teracolus which is indigenous to the forest region of West Africa; it occurs there from 
Sierra Leone to Angola. 
T. omphale closely approaches the preceding species. The cf is usually distinguished from that of 
evippe by the broad black hindmarginal stripe on the upperside of the forewing; in the winter form, however, 
this stripe is sometimes entirely absent, but the black bordering of the ornamental spot is there nearly 
always much narrower than in evippe and the under surface of the hindwing reddish and striated with brown. 
Single specimens, in which the under surface is almost white as in evippe- cf and the black bordering of the 
NIII. 8 
