rhea. 
albmea. 
veraepacis. 
theudela. 
fulgidus. 
himera. 
cyrbia. 
diformata. 
venus. 
juno. 
favorinus. 
petiverana. 
demophoon. 
tristis. 
colombina. 
antigona. 
hydara. 
guartca. 
adana. 
molina. 
chestertonii. 
nocturna. 
magnifica. 
viculata. 
392 HELICONIUS. By Dr. A. Serrz. 
from Ecuador is above like sara, but with unusually brillant blue lustre and uncommonly long white fringe of 
the hindwings. — In rhea Or. (= thamar Hon.) (782) the discal band is an almost regular oval, the sub- 
apical band shorter; both bands yellow. From Guayana throughout Amazonas to Peru and Ecuador. — albinea 
Riff. fom Surinam has the bands as in rhea, but clear white. — veraepacis Bat., an alpine form of Guatemala, 
unknown to me, has the subapical bands whitish, slightiy curved, and interrupted; the discal band yellow in 
the middle, angular, enclosing a yellow, nearly square cell-spot. — theudela Hew. from Panama, Colombia 
and Venezuela resembles sara, but the transverse band almost reaches the anal angle, the hindwings with yel- 
low terminal dots. — fulgidus Stich. (78 a) from Costa Rica has the same intensely blue lustre as sprucet; 
the fringe shorter, but more brillantly white, the discal spot as broad as in apseudes. 
H. himera Hew. (77 2) does not fit in with any of the larger groups. It is a rare species of Ecuador, 
copying in its outward appearance H. clysonimus (79 b) with which it associates in the same localities. Its 
scheme of colouring is the reverse of colombina (78 b), being red where that is lemon-yellow, and vice versa. 
H. cyrbia Godt. (78 a) is one of the plainest and at the same time most elegant forms of this magnifi- 
cent genus. The wings are black with steel-blue lustre and white fringe. Forewings with a semiband of purplish 
pink, hindwing with bluish-white terminal spots, growing shorter towards the apex. Ecuador; some specimens, 
including the original of our figure, were taken by Hamnscu even at altitudes of 2500 ft. — diformata Riff. 
has on the forewing the red band much broader, on the hindwing the terminal spots frequently dusted over with 
darker, the hight median band of the under surface nearly twice as wide as in cyrbia. From Paramba (Ecuador). 
— venus Stgr. from Colombia has the red band even broader, twice as broad as in cyrbia; but it lacks the white 
terminal spots of the hindwings. — juno Riff. which above resembles venus, is said to be without the blue 
lustre of the upper surface; the hindwings with the median band obsolete underneath, but with red costal streak. 
Described from a specimen in RrrrarrH’s collection, locality unknown. 
H. favorinus Hpffr. (= pseudamarylls Stgr.). Forewing with blood-red, almost round spot, which is, 
however, cut off almost straight on the lower median nervule. Hindwing with yellow discal band, tapering at 
both ends, in the middle broader, underneath rather longer, ending in a point about 3 mm. before the termen. 
Peru. 
H. petiverana DbJ. and Hew. (= demophoon Bat.) (78 b) closely approaches phyllis, but lacks on the 
forewing the yellow median streak, like rosina (76 b); differs from all other similar forms in having the yellow 
costal streak of the hindwing very narrow. Ranges from Mexico throughout Central America as far as Colom- 
bia and Venezuela. — demophoon Men. has the yellow band of the hindwing broader; thus it approaches 
rosina as well as columbina, but differs in the characteristic shape of the red spots of the forewings as well as of 
the yellow band of the hindwing, which is nearly straight, whereas in colombina its outer edge is distinctly curved 
upwards behind the cell. From Central America and Colombia. — ab. tristis Riff. from Panama and Costa 
Rica lacks above the yellow band of the hindwings, which is underneath faintly indicated by an obsolete shade. 
H. hydara is connected with the preceding group by the form colombina Stgr. (78 b), but easily distin- 
guished from it by the characteristics mentioned under demophoon. The curving up on the hindwing of the outer 
margin of the yellow band is largely due to the band swelling in the middle. — ab. antigona Riff., likewise 
from Colombia, is distinguished from the preceding by the blue iridescence of the upper surface. — In the 
name-type hydara Hew., likewise occurring from Costa-Rica to Venezuela, the hindwing lacks the yellow band; 
it resembles melpomene, but the red spot on the forewing is much broader, almost as in euryas or in vicina 
(75 e). — ab. guarica Reak. from the same locality is an aberration with steel-blue lustre, every grade of in- 
tensity being known. — HewirTson lays stress upon the fact that typical hydara have also on the hindwing in 
the middle a small spot of scarlet, which appears so distinct in his figure that there can be no doubt about 
the character of his hydara; for this reason I have named all specimens in which this spot is not present, although 
they are the more common, ab. adana nom.nov. This form closely resembles melpomene typica in all but the much 
broader and more brillant red band of the forewing. — ab. molina Sm. looks like guarica, but has the red 
band on the forewing interrupted by black. — In the same way as in this the hindwings may lack the yellow 
band, whereas the red band on the forewing is strongly developed, it may vice-versa happen that the latter 
disappears and the former is retained. This is chestertonii Hew. (= damysus Hpffr.) (78 b), which somewhat 
resembles cydno fa. gustavi (74 f), with the same blue iridescence, but lacking the rows of white submarginal dots, _ 
and on the hindwing the yellow band reaching underneath almost the apex. —nocturna Riff. from Venezuela 
looks like chestertonii, but the yellow band of the hindwings is obsolescent, and there is a white spot above 
the end of the cell in the forewing. — magnifica Riff. resembles guarica, but is larger; the blue lustre is not 
confined to the black-brown ground-colour, but also suffuses the red spot of the forewing. Guayana, Ecuador, 
Peru. — In viculata Riff. (78 b) the spot of the forewing is large and broad, traversing almost the ens 
tire width of the wing; but it is pale red, of a shade only seen in hydara and melpomene specimen- 
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