380 HELIGONIUS. By Dr. A. Seitz. 



semiflavida. semiflavida Weym.(=dagi\3,ims Stgr.) has the transverse band of the fore wing very brillant lemon-yellow, the black 

 Claudia, median band of the hinclwing broader than in metalilis;iiom Cauca and Dagua (Colombia). — Claudia Gorfw. and 

 Salv. from Panama is distinguished by the darker ground-colour, which is mahogany instead of yellowish- brown. 

 This, together with the reduced median band of the hindwing, gives it a great resemblance to Hel. clara, 

 eucoma. with which this form associates in Panama. — eucoma Hbn. Typical specimens as found on the Lower Ama- 

 zon, are yellow-brown ; forewing with the apex black, enclosing minute yellow spots ; the costal margin united 

 with the discal spot; on the submedian vein always a broad streak; the median band on the hindwing con- 

 tyndarus. tiguous, differing in this from claudia; otherwise resembling tyndarus Weym. (72 e), but not so dark, rather 

 aerotome. yellow-brown; occurs in Bohvia. — aerotome Fldr. (72 f, wrongly named gradafus), from Peru and the adja- 

 cent parts of Brazil, has the ground-colour likewise dark, deep chestnut-brown, sharply contrasting with the 

 flavofas- yellow band of the forewing and the small apical spots. — ab. flavofasciata Weym. is an unusual aber- 

 ciaia. nation of the typical eucoma, found with the latter at Para; hindwing with a yellow anterior band, giving it a 

 ethilla. close resemblance to several ItomUnae occurring with it at the mouth of the Amazon. — ethilla Godt. which 

 flavidus. also belongs here, is probably identical witii flavidus Weyiu. ; should this prove true, it would he the first-descri- 

 bed form of the groujj as well as the type. It resembles exactly semiflavida Wey)n., but has not only the 

 forewing largely sulphur-yellow, but also on the hindwing, between median band and costal margin, a broad 

 streak, the brown-yeUow ground-colour being limited to the veins at the base of the forewings and a streak 

 cephallenia. along the inner margin; from Venezuela. — cephallenia Fldr., which is unknown to me, is said to have the 

 entire hindwing black-brown, with the exception of a narrow yeUow-brown band behind the costal margin; 

 juntana. from Surinam. — juntana Riff, from West-Colombia closely resembles semiflavida, but has the apex altogether 

 mentor, black, without any light spots. — mentor Weym.., from Cauca is not unlike the figured metalilis (72 e), but of 

 broader build; forewings with clear sulphur-yellow spots, that are neitiier hj^aline nor dusted over with fuscous, 

 but smaller and more isolated; on the forewing the black apical area is bordered with sulphur-yellow; on the 

 numismati- hindwing the median band frecjuently dissolved into spots. — Finally there remains to be mentioned numisma- 

 '^*- ticus Weym. (72 e), which is sufficiently characterized by our figure; from the Lower Amazon. All the forms 

 of this species seem to be rather scarce, and ai'e comparatively rare in collections. 



gradaius. H. gradatus Weyiri. (73 b) closely resembles numatus and melanops in the broad median band of the hind- 



wings which is scarcely separated from the equally broad black termen. Forewiiigs with deep black apex, in- 

 wardly bordered by a clear yellow band interrupting the brown-yellow ground-colour which is but slightly 

 ihielei. spotted with black; from Pebas on the Amazon. — thielei Riff, from Cayenne has 3 yellow subapical spots. 



sulphureus. H. sulphureus Weym. (72 f) from the Rio Negro in Brazil has the ground-colour pale sulphur-yellow, 



only the veins and the black submedian band slightly shaded with ferruginous. 



paraensis. H , paraensis Riff, closely resembles eucoma, but is larger, and the yellow band of the forewings is more 



denticulate distally and less sharply defined; the black submedian streak traverses the entire forewing; on the 

 hindwing the black terminal border is at the middle broader than in eucoma, the median band continuous, not 

 denticulate, in the outer half about 3 mm. wide, slightly tapering towards the inner margin. Upper surface of 

 the forewing with apical spots, of the hindwing without terminal spots: these however are present underneath, 

 laius. where the basal area is almost entirely sulphur-yellow. Para. — latus Riff., from Itaituba on the Rio Tapajos, 

 has on the forewings above the submedian stripe broader, and the ytllow band, especially on the veins, dusted 

 with brownish; on the hindwing the median band considerably broader. 



aulicus. H. aulicus Weym., from Venezuela, is closely related to eucom.a, but the black apex of the forewing 



lacks the yellow spots, and the sulphur-yellow transverse band is, like that of latus, feebly denticulate, also 

 distally; the black spot at the end of the cell irregidar, occasionally separated from the black costa; the sub- 

 median stripe beginning as a narrow line, gradually growing broader towards the termen. The median band 

 of the hindwing made up of elongate, proximally confluesccnt spots, at the apex united with the black costa. 



sobrysi. — zobrysi Fruhst. from Matto Grosso chiefly differs from typical aulicus Riff, in having on the forewing, the 

 basal streak in the cell reduced and on the hindwings the black bands broader. 



schulzi. H. schulzi Riff. Forewing with very broad, sulphur-yellow band, costa and submedian finely black, 



the wedge-shaped spot small, oval, not drawn out to a point; hindwings almost as in silvana (72 c), but the 

 median band not curved, separated at the inner margin and broken up into small spots; at the apex 2 or 3 

 large sulphur-yellow spots. Para. 



vetustils. H. vetustus Btlr. differs from the figured metellus Weym. (72 f) in having the ground-colour brillant 



metelhts. orange, not chestnut-brown. The forewings resemble those of schulzi, but have the j-ellow obliciue band narrower; 



from Guayana; metellus from the Lower Amazon has on the forewing the black spots larger, likewise the apex 



and anal angle more black. 



mira. H. novatus. Among the forms referred to this species, the most lovely is mira Weym. (73 a) from Peru. 



