EUPSEUDOSOMA. By Dr. A. Seitz. 
amacidata. 
involuta. 
I lav Ida. 
nivca. 
agramma. 
aberrant >. 
bicolor. 
(jrandis. 
nigropunc- 
iata. 
b if as Gat a. 
eurygania. 
affinis. 
364 
the darkened, greyish-brown marginal part. Peru, Costa Rica, on the volcano Irazu; in specimens from there 
the anal part of the border in the hindwing is brownish. — amaculata Rothsch., described from Colombia, has 
the border not covered with brown; but there are also specimens from the Orosi in Costa Rica, taken together 
with typical ones. — On the contrary, however, specimens from the Rio Songo in Bolivia show the black shading 
increased and extending into the hindwing. 
45. Genus: Hupseiictosouia Ort. 
About 12, not homogeneous forms compose this genus. One group, being the typical one, lias snow- 
white butterflies with a hemochrome abdomen. The larvae are wrapped up in a dense fur, in which they stick 
like in a sack from which the head looks out; the head, however, is again crowned by bownet-like projecting 
brushes. The pupa is red-brown encased in an oviform furry cocoon. In this division the subcostal of the hind¬ 
wing bifurcates before the cell-end. In the second division we find variegated butterflies, scantily haired 
larvae, a loose cocoon, and in the hindwing the subcostal bifurcates b eh i n d the cell-end. The gg of the 
first division have also more pointed forewings, those of the second such with a rounder border. The first division 
is probably allied to the Syntomids, the second more to the genuine Arctiinae; at any rate it is a mixed genus. 
A. Butterflies snow-white, mostly with a he m ochrome a b d o m i n a 1 dors u m. 
E» involuta Sep}) (= floridum Grt., immaculata Graef) (50 a). Wings white with a satin gloss, only 
the apical part of the costa of the forewing with a very fine black cover. In the $ mostly an extremely fine, 
somewhat curved longitudinal streak, appearing black only in a certain exposure to light, runs through the 
whole submedian space of the forewing. On the abdomen the dorsum is hemochrome, the 3 last segments, the 
base and a minute median spot behind it are white, behind it often yet minute white dorsal dots. — In flavida 
Dgn. from French Guiana the abdomen is above orange-yellow. — tlivea H.-Schaff. (50 a) has more purely 
white, less diaphanous wings, and on the red dorsum of the abdomen there are small white transverse bands. 
On the forewing, beside the submedian ray, another dark streak runs from the transverse vein to the border. —- 
a gramma Hmps. (= involutum Drc. p. p.), according to its author a distinct species, is somewhat smaller, the 
forewing without the black costa, the $ with smaller hind wings. — Larva in a dense furry cover by which it is 
sac,ciformly surrounded and which may be red-brown, grey, orange-yellow, even velvety black. On the 2nd 
and 3rd ring there are whitish pencils projecting in front beyond the head. On Psidium pyriferum, Eugenia 
buxifolia and E. procera. The species is widely distributed, from Florida to South Brazil; agramma described 
from Mexico. The butterfly likes to come to the lantern and is in some places not rare; in Guiana it leaves 
the pupa already on the 9th day. 
E. aberrans Schs. (50 a), from South Brazil and Paraguay, is quite similar, but the costa of the forewing 
much more intensely dark brown, and the inner-marginal part of the hindwing often intensely tinted pink. 
E. bicolor Rothsch. (50 a) from Colombia (Santa Marta) has the abdomen reel almost to the apex, 
the thorax being marked red, the forewing at the costa yellowish and at the base at the proximal margin tinted 
pink; the discocellular is very finely dotted black. Hind wings purely white; very closely allied to involuta. 
E. grandis Rothsch. (50 a) from Peru is recognizable by the large size, the purely white wings and 
the prothorax being marked yellowish. 
E. nigropunctata Rothsch. (50 a). White, the forewing with black punctiform spots in and below 
the cell and before the apex, near the border; costa profusely blackish-brown; abdomen not red but above 
white, faintly tinted yellowish-brown. Amazon: Fonte Boa. 
B. Wings v a r i e g a t e d , not w h i t e. 
E. bifasciata Cr. (50 a). Purple brown, with lighter patagia. Body and wings in some places reddish; 
forewing with 2 ante- and postmedian dark lines parallel to the border. Surinam. — eurygania Drc. is the form 
from the Chiriqui in Panama, more yellowish-brown, without the red tinge. — Larva scantily short-haired, 
black, with lateral and subdorsal bands composed of numerous white dots head yellowish-brown, ventral feet 
and their ramifications light reddish; on coffee. 
E. affinis Rothsch. (50 b) from Peru is rather exactly like a small Neonerita syrissa (45 h) which is 
often repeated in the South American Arctiids (e. g. in Zatrephes pseudopremolis), the basal half of the forewing 
purple-brown, apical half diaphanous light yellow, costa and a small costal spot before the apex purple brown; 
hindwing whitish-yellow, inner-marginal part tinted purple. 
