Publ. 25. X. 1915. ADELPHA. By H. Fruustorrer. 521 
described from Surinam, inhabits all the three Provinces of Guiana and the whole district of the Lower Amazon. 
The under surface is sometimes much darker striped than it isin our figure, especially specimens from Cayenne 
and Obidos are thereby conspicuous and thus form a transition to implicata subsp. nov. Here the fore- implicata. 
wings exhibit from the inner margin as far as up to the middle median a white hue of the ochreous median 
band, being otherwise also much narrower. The white median band of the hindwings, however, broader, the 
basal area of the hindwings covered with violet instead of whitish. Peru. — bartolme subsp. nov. was recently barlolme. 
discovered in Mato Grosso where it occurs beside A. plesawre which is so nearly allied with it on the 
upper surface. The bands of the upper surface analogous to implicata with the sole exception of the much nar- 
rower white stripes on the hindwings. The under. surface eminently differing by a reddish tinge on the median 
part of the forewings. The whole distal area of the hindwings likewise extensively covered with reddish-brown. 
A. plesaure. We have succeeded in most favourably demonstrating the markings by our figures 
(107 a). The yellow zone as well as the white one of the forewings vary according to the habitat of the butter- 
tlies. The under surface is likewise variable according to the locality, either with prominent bands or faded. 
plesaure Hbn. A form being rarely found in collections, with yellowish-brown though insignificant white embed- plesaure. 
ment of the forewings, being prolonged as far as to the inner margin. The orange-coloured part of the fore- 
wings are besides much less extensive than in our figure. Habitat unknown, presumably Guiana. — cera- cerachates. 
chates subsp. nov. approaches the most closely the illustrations in HUEBNER’s ,,Zutrage‘*, by the reddish-yellow 
colour running through the whole forewing and the strangulated shortened white colour. The under surface 
peculiarly faded, discoloured into wax-yellow. Mato Grosso. — sirona subsp. nov. from Eastern Bolivia sirona. 
shows, beside its considerable habitual size, also a broader yellowish-brown band of the forewings; under sur- ~ 
face also darker and more variegated, with more pregnant reddish-brown stripes than in the allied races 
mentioned so far. — heredia subsp. nov. (107 a as plesawre) is a most characteristic territorial form from Cen- heredia. 
tral Brazil, recognizable by the elongated white of the forewings extending as far as to the wing-centre at the 
cost of the reddish-brown part. Bahia, Espiritu Santo. — antoniae subsp. nov. resembles heredia except that antoniae. 
the yellowish-brown part of the forewings is more irregular, the white stripes narrowed and the under surface 
on the forewings with darker yellow, and on the hindwings with sharper reddish-brown stripes. Santa Catharina. 
A. cytherea forms one of the most intuitive examples of the geographical variability of a species the 
amplitude of which we illustrate by our 7 figures 108 b. On the upper surface, the reddish-yellow as well as 
the white part may shade off in different extent according to the locality. The under surface, however, is 
more constant in the ground-colour, even extremely constant, and even the width of the white median 
band is subject to but slight modifications. The greatest variability is exhibited by the Colombian species 
among which we meet such being striped the darkest brown on the under surface, beside such with a supple- 
mentary yellowish-brown median band on the upper surface of the hindwings (o/bia, 108 c). With the exception 
of Mexico, cytherea is distributed throughout the whole of Central America and the southern continent from 
Colombia to Bolivia, and from the West Indies to Santa Catharina. The sexual organs are closer allied to the 
cocala-group than to the following A. iphicla-forms, they are, on the other hand, so well specialized that 
we may speak, also according to the configuration of these organs, of an independent A. cytherea-group. 
Valve of about the contour of the cocala-valve, with extremely broad and deep groove, the short point 
without spines, but with very long hair as in cocala. Clunicula relatively short, roundish, uniform. Penis broad, 
little chitinized; scaphium with thin arms. Uncus like in A. cocala, but basally less swollen. — marcia 
subsp. nov. (108 b) is found from Guatemala to Colombia. Yellow zone of the forewings narrower than in the 
typical form, as well as the white band of both the wings. — despoliata subsp. nov. (108 b as cytherea) is despoliata. 
the common form of Colombia. The reddish-yellow part of the forewings darker than in cytherea L., somewhat 
narrower, the white spot of the forewings anteriorly not ending in a sharp point, but suddenly interrupted 
broad at the posterior median. — daguana subsp. nov. (108 b) forms the melanotic extreme of the whole daguana. 
species, with a white median band being only as thin as a thread. The reddish-brown bands of the under 
surface more prominent than in all the known cytherea-races. The white stripes are not always so much re- 
duced as in our figure; they may be half as broad again, as is shown by two ¢¢ of my collection. Rio Da- 
gua (Western Colombia); type in the Tring-Museum. — olbia Fidr. (108 c) is the lightest form; conspicuous olbia. 
by a postdiscal yellow band of the hindwings. Colombia, rare, probably from the Cauca Valley where it 
occurs as aberration beside despoliata. — tarratia subsp. nov. (108b) approximates despoliata, though its tarratia. 
yellow region of the forewings is also on the decline, whereby it approaches more daguana and marcia. The 
white spot always goes beyond the lower median of the forewings in a distinct pointed prolongation. Ecuador. 
Type from Paramba. — lanilla subsp. nov. (108 b) is found from Peru to Bolivia and is further inland lanilla. 
distributed as far as Mato Grosso. Upper surface most nearly allied to cytherea except that the white spot 
of the forewings is prolonged further anteriorly and the median band of the hindwings considerably broa- 
dened. — insularis subsp. nov. (108 b) beats even lanilla in the extent of the white median band. The hind- insularis. 
wings bear only one (instead of two) blackish-grey submarginal bands. Trinidad. Similar forms are found also 
on the other West Indian Isles, and DoupLEepay reported cytherea already in 1847 from the Isle of Sa. Lucia. 
— cytherea L., the nomenclatural type, described from Surinam, goes to the north as far as Venezuela and cytherea. 
the Upper Rio Negro. The yellow area of the forewings somewhat more extensive and paler than in lanilla. 
— As nahna Sm. a form being similar and equal to olbia is described from Merida (Venezuela) with somewhat nahna. 
V 66 
marcia. 
