didactica. 
subalbicans. 
nitens. 
a 1 ic ia ns 
ximenans. 
violans. 
bonaerensis. 
helenans. 
priscillans. 
lophosiig- 
ma. 
laurans. 
extensa. 
reletiva. 
oplielia ns. 
1110 81 BINE. By H. G. Dyar f. 
grass-green, with a fine black line between the horns of the 5th segment and behind on the 13th segment; 
horns dark, the spread out spines on them pink. Brazil; Paraguay. 
S. didactica Dyar. The <$ is small, purple red-brown, still more reddish below the cell, the veins 
shaded darker, the dots white. Hindwing light. Expanse of wings: $ 28 mm; $ unknown. From British 
Guiana. A <j> which seems to belong to it would correspond to Stoll's figure of fusca. Compare also nitens. 
S. subalbicans sp. n. Like didactica , but without the broad dark area in the cell of the forewing. Ex¬ 
panse of wings: £ 30 mm; $ unknown. From Brazil. 
S. nitens Dyar (? = fusca Stoll) has a more rounded shape of the wings and is more scantily scaled 
than the preceding 8 species, the veins often contrasting on the semidiaphanous ground; dots white, generally 
very distinct, but small; hindwing from pinkish brown to dark brown, sometimes with the rough scales of 
horrida; the ^ with more monotonous hindwings, the subapical dots of the forewing in an oblique line as in 
the (T, often somewhat confluent. Expanse of wings: $ 27—35, $ 45—47 mm. Guiana, Peru, Brazil (Ama¬ 
zons). Another race which I separate as —- aliciams /. n. has lighter, whitish hindwings with a pink inner 
margin, some are also a little darker. The $ is glossy and somewhat transversely striated, without subapical 
dots. According to 8 and 2 $0 from Brazil, Prata (Amazons), 100 km from Para (A. H. Fassl). 
S. ximenans Dyar resembles nitens , dark purple brown, with very small dots, the hindwings also very 
dark. The $ hypopyginm similar to that of joyceans, but different in details (cf. synopsis, No. 33). Expanse 
of wings: 32 mm; Q unknown. Brazil (Rio Tocantins). 
S. violans Dyar is rather large, glossy dark purple brown, darker stripes in the cell and submedianly 
distinct in a certain exposure to light; dots light yellow, large and somewhat confluent. Hindwing dark red- 
brown, the (J with rough more purple scales between the veins. Expanse of wings: $ 33—35, O 48 mm. 
Colombia. 
S. bonaerensis Berg. <£ with rather obtuse wings, from dark brown to blackish brown, dots reduced 
or absent. Hindwing moderately dark, sometimes lighter in the disc. The $ with more pointed wings with 
a red apical spot, the dots white, in an oblique line, somewhat confluent. Expanse of wings: 28—30, £ 37 
to 52 mm. Larva extremely similar to that of trimacula. Argentina, Brazil, Paraguay. 
S. helenans Dyar is a small species, smooth, dark purple brown, without any marking. Hindwing 
light purple brown, darker along the inner margin. Hypopyginm as in bonaerensis , but the shape of the wings 
is different. Expanse of wings: $ 25—28, $ 40—42 mm. Bolivia; Brazil (Amazons), Peru (Rio Putumayo). 
S. priscillans Dyar. Large, light, red-brown, with a red apical spot and a subbasal one, with a narrow- 
dark stripe below the cell; a single yellowish subapical dot and a subbasal one, both rather large. Hindwing 
light yellowish-white, the veins and inner margin broadly dull reddish, base of fringe dark. Expanse of wings: 
T 43 mm; $ unknown. Mexico (Zacualpan). 
S. lophostigma Dogn. Shape of wings obtuse, purple brown with extensive subapical and subbasal 
orange tints; dots large, round, yellow. Hindwing rather dark, pinkish brown. Expanse of wings: $ 33—36, 
$ 45 mm. French Guiana, Brazil (Amazons). 
S. laurans Dyar (164 e) has obtuse wings of a lighter purple brown colour and darker fringes, with 
a broad orange-red tinge along the inner margin below a darker stripe; subapically no other cokmr, no dots. 
Hindwing light purple brown, the inner margin assuming the tinge of the inner margin of the forewing. Ex¬ 
panse of wings: $ 28 mm; $ unknown. Brazil (Sao Paulo Olive^a, Amazons). 
Section II. <$ anellus without a chitinous dorsal tongue. 
S. extensa Schs. (164 e). Large and with pointed wings, dark red-brown with reddish subbasal and 
subapical spots, a blackish shadow through the cell and below the median vein, a single white dot, often 
prolonged or also extinct. Hindwing light, sometimes suffused with pinkish brown, with a dark inner margin. 
Expanse of wings: <$ 32—40, $ 45—64 mm. Larva elliptical, flattened, with very short horns, light green, 
the horns green. It lives gregariously and also spins the cocoons together in a common web. Mexico, Florida 
(Paradise Rev). This species and perhaps also the following reletiva and ophelians have larvae of the cross- 
horny type of the Section I, but the chitinous tongue of the anellus is absent. 
S. reletiva Dyar is smaller than extensa , with different spines on the penis, otherwise very similar. 
Expanse of wings: $ 30—35, $ 40 mm. San Salvador. 
S. ophelians Dyar has more obtuse wings than extensa. and less distinct markings, it is more scantily 
scaled and likewise separable by different spines of the penis. Expanse of wings: <$ 30—35, 2 46—50 mm. 
Guatemala, Costa Rica, Panama, Colombia. 
