82 
SEMAEOPUS. By L. B. Prout. 
bobaria. S. bobaria Dogn. (10 cl) is only definitely known from the type of which we here reproduce the good 
figure. It may probably have to supplant the following, but as the antemedian line of the forewing appears 
to be more oblique anteriorly and the postmedian line less sinuous, it would be premature to merge them. Loja. 
lunifera. S. lunifera Warr. (10d). The upperside is shown by our figure; beneath, the grey cloudings are want¬ 
ing, except only those of the distal area of the forewing, which area weakly indicated. Colombia (type) and 
Bolivia. A race or close relative from S. Brazil awaits better material. 
luridata. S. luridata Warr. is perhaps only a slightly larger form of lunifera (10d), but the apex of the foreving 
appears somewhat less rounded. Otherwise it differs chiefly in that the dark cloudings are more intense, more 
tinged with brown, that of the hindwing extended so as to leave free only the basal patch (shaped as in luni¬ 
fera) and a small posterior one like that of hypoderis (10 e) or catamompha (10 e). Carabaya, S. E. Peru. —- 
subrugosa. subrugosa Prout, from Rio Madeira, only differs in having the underside of both wings in the $ clothed with 
coarse reddish scaling. 
caparonen - S„ caparonensis sp.n. (10 d). Possibly a race of lunifera, but more probably a good species. Smaller 
sts ' (S' 22 mm, $ 24 mm), paler, costal margin of forewing not darkened excepted its extreme edge, no cloudings 
on this wing excepting the two terminal spots, of which the anterior is reduced but sharply expressed. Caparo, 
Trinidad, type A (S. M. Klages) and allotype $ (F. Birch) in the Tring Museum. 
commacu- 8, commaculata Warr. (10 e). Considerably larger than luridata, ground-colour a little paler, dark 
lir/ "' parts at least as strong, slightly more reddish, their distribution quite different — particularly in the develop¬ 
ment of a broad central band on the forewing; hindwing with pale base much reduced, but with some ill- 
defined apical maculation. British Guiana (loc. typ.) to French Guiana and to E. Bolivia and Matto Grosso. 
potens. S. potens sp.n. (10 e). generally larger than commaculata (34—38 mm), ground-colour paler, the 
terminal patches behind the 3rd radial particularly clear and well-developed, the dark markings somew hat 
less reddish, more chocolate. Underside much more weakly marked than in commaculata, hindwing clothed 
nearly throughout with specialised scaling, the median and part of its first branch with a strong fringe of 
appressed hair, directed forward (in the cell reaching the cell-fold), hindmargin also with a fringed fold beneath. 
$ less large, well marked beneath, above with the pale area beyond the middle interrupted — altogether very 
like commaculata except in colour. Taperinha, near Santarem, 8 $3, 2 $$ (Dr. H. Zerny), type in Museum Wien. 
hypoderis. S. hypoderis Prout, (10 e). Nearest to commaculata, but with a second (subterminal) band developed 
on the forewing, separated from the ground-colour by an elegant row of white spots; apex of hindwing without 
jiale maculation. S. E. and E. Peru. A small, not very warmly coloured £ from Sao Paulo (Museum Wien) 
may represent a race. 
duplicata. S. duplicata Warr. (10 e). Forewing broader, without definite bands, no apical spot of the ground¬ 
colour, median line double, well beyond the colon-shaped cell-mark; hindwing with the pale patches larger 
than in hypoderis. Guadalite, Cundinamarca, only the type $ known, with antennal ciliation as long as dia¬ 
meter of shaft. 
tetrasticta. S. tetrasticta sp.n. (10 e). Probably nearer to plumbeostrota (10 f) than to duplicata (10 e), approxi¬ 
mating to the latter in coloration; as the cell-marks consist of conspicuous pairs of black dots I place it here. 
Postmedian line of forewing only faintly duplicated; apical patch very characteristic, large, grey, with curved 
proximal edge and row of brown spots. S. E. Brasil: Alto de Serra, 800 m, 3 March 1913 (E. D. Jones), only 
the type known. 
pepluma- S. peplumaria Schaus (10 f). Exceptional in shape, the hindwing being irregularly produced in the 
rtu. nUclclle; further characterized by the great extent of the dark cloudings. Founded on a $ from Sixola, Costa 
Rica; a £ from Honduras agrees essentially with it. 
catamom- S. catamompha Prout (10 e). Much smaller than commaculata (10 e), paler, the antemedian line even 
plm. more strongly bent than in duplicata (10e), the principal dark shades present but ill-defined; cell-mark of 
each wing narrow, scarcely expressed except by the sharply black dot at each end. Buena vista, E. Bolivia. —- 
isotherma. isothenna subsp. nov. is much more suffused with ochreous, the dark parts (unless, perhaps, the subapical 
cloudings of the forewing, which are somewhat broadened) less contrasting; pale terminal patch of hindwing 
inconspicuous, but of equal w i d t h from hindmargin to 3rd radial. Orange Walk, British Honduras, 
type £ in Tring Museum. As the hindwing is appreciably more angled at 3rd radial (though only bluntly), this 
may be a separate species. 
neximargo. S. nexSmargo Warr. (10 f). More strongly dark-suffused than any of the preceding, the only noticeably 
pale parts being the subbasal band and terminal patches of the forewing and a few whitish spots, of which the 
subterminal one in cellule 3 is conspicuous. Both wings bluntly elbowed in the middle. E. Peru (type) and 
E. Bolivia. 
