392 HELICONIUS. By Dr. A. Seitz. 



from Ecuador is above like sara, but with unusually brillant blue lustre and uncommonly long white fringe of 



rhea. the hindwings. — In rhea Cr. (= thamar Hbn.) (78 a) the discal band is an almost regular oval, the sub- 



alUnea. apical band shorter ; both bands yellow. From Guayana throughout Amazonas to Peru and Ecuador. — albinea 



veraepacis. Riff- from Surinam has the bands as in rhea, but clear Avhite. — veraepacis Bnt.. an alpine form of Guatemala, 



unlcnown to me, has the subapical bands whitish, slightly curved, and interrupted; the discal band yellow in 



theudela. 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 witli yel- 



julgidus. low terminal dots. — fulgidus Stich. (78 a) from Costa Rica has the same intensely blue lustre as sprucei; 



the fringe shorter, but more brillantly white, the discal spot as broad as in apseudes. 



himera. H. himera Hew. {1$ a) 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. 



cyrbia. 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 

 pinli, hindwing with bluish-white terminal spots, growing shorter towards the apex. Ecuador; some specimens, 

 diformaia. including the original of our figure, were taken by Haensch even at altitudes of 2500 ft. — diformata Biff. 

 has on the fore\ving the red band much broader, on the hindwing the terminal spots frec^uently dusted over with 

 darker, the light median band of the under surface nearly twice as wide as in cyrbia. From Paramba (Ecuador). 

 venus. — venus iS^gr. from Colombia has the red band even broader, twice as broad as in cyrbia; but it lacks the white 

 juno. terminal spots of the hindwings. — juno Riff, which above resembles ve^rus, 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 Riffarth's collection, locality unlcnown. 



favorinus. H. favorliius Hpffr. (= pseudamaryUis 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. 



■petiverana. H. petiverana Dbl. and Hew. (= demophoon Bat.) (78 b)^closely approaches phyllis, but lacks on the 



foreA\ing the yellow median streak, like rosina (76 b); differs from all other similar forms in having the yellow 

 costal streak of the hind«'ing very narrow. Ranges from Mexico throughout Central America as far as Colom- 

 demophoon. bia and Venezuela. — demophoon Men. has the yellow band of the hindwing broader; thus it approaches 

 rosina as well as colwmbma, but differs in the characteristic shape of the red spots of the forewings as well as of 

 the yeUoA\' band of the hindwing, \\'hich is nearly straight, whereas in colombina its outer edge is distinctly curved 

 iristis. 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. 



colombina. H. hydara is comiected 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 

 antiyona. 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 

 hydara. name-type hydara Hew., hkewiae 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 

 guarica. (75 e). — ab. guarica Reak. from the same locality is an aberration with steel-blue lustre, every grade of in- 

 tensity being kno\\n. — Hbwitson 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 tliis spot is not present, although 

 adana. they are the more common, ab. adana nom. nov. This form closely resembles melpomene typica in all but the much 

 mol'rna. 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 

 chesteHonii. 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, 

 nocturna. 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 

 magniiica. 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, 

 viculata. Peru. — In viculata Riff.' (78 h) 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- 



