553 
Pull. 27. V. 1927. PORTHETRIA. By Dr. W. Schaus. 
from upper angle; 7, 8, 9 stalked; 10 and 11 from cell. Hindwing: veins 2, 3, 4 apart; 5 close to angle; 
6 and 7 from upper angle. 
Type: S. semilutea Wkr. 
S. semilutea Wkr. (74 g). <$. Palpi rufous with dark tips. Frons dark brown. Thorax vinaceous semilutea. 
huff. Abdomen and hindwings light orange yellow, the abdomen with small dorsal black spots. Forelegs dark 
purplish brown. Forewing huffish thickly irrorated with lilacine scales producing a vinaceous buff colour; 
lines russet vinaceous, the antemedial and postmedial parallel, excurved at costa, straight and inbent to inner 
margin; two dark points on discocellular; subterminal line faint, but outwardly edged with white, lunular 
from costa to vein 5, then faintly inbent; costal edge, termen narrowly and cilia vinaceous brown, the latter 
white at base. $ with forewing uniformily fawn colour suffused with purple and without the white markings, 
the lines blackish. Expanse: <$ 41 mm, $ 68 mm. Costa Rica. 
S. dodona Drc. <$. Forewing greyish olive crossed by three darker lines, and a subterminal row of dodona. 
black points. Hindwing light orange yellow with darker suffusions on termen. Described from figure in Biologia. 
Chiriqui, Panama. 
S. valstana sp. n. (74 g). <$. Shaft of antennae buff irrorated with ferruginous, the branches fuscous, valstana. 
Palpi ferruginous with dark tips. Thorax cinnamon drab. Abdomen antimony yellow; a dorsal tawny line 
extending on thorax. Forewing fawn colour suffused with purplish grey; lines slightly darker, finely wavy 
and inbent; an antemedial and two postmedial lines, the first curved around cell; a sinuous subterminal row 
of black spots partly edged with white; a large black spot at end of cell. Hindwing pale orange yellow; a small 
point at upper angle of cell and faint traces of three dark lines; cilia ferruginous. Wings below light orange 
yellow, the hindwing suffused with ferruginous except on inner margin; the three lines dentate purplish red. 
Expanse: 42 mm. Chiriqui, Panama. 
S. corydona Drc. (74 g). <$. Shaft of antennae ferruginous, the branches fuscous. Palpi deep Corinthian corydona. 
red. Thorax wood brown. Abdomen ochraceous orange with a dark dorsal line. Forewing wood brown, the 
antemedial and two postmedial lines very sinuous, purplish brown; a subterminal punctiform black line, the 
spots towards costa well edged with white basad; a sinuous white line on discocellular. Hindwing orange buff, 
suffused except on costa with orange rufous; traces of dark lines, which on underside are purplish red, the medial 
and postmedial lines dentate, the subterminal punctiform, suffusing somewhat with the terminal shadings. 
Expanse: 40 mm. Canal Zone, Panama. It is with doubt that I make this the of 8. corydona Drc., and 
should it prove distinct I suggest the name of tarchona for it. 
S. cayugana Schs. (74 g). Head and palpi brown, the latter with black tips. Thorax and forewing cayugana. 
avellaneous; lines darker, the antemedial straight, inbent, the two postmedial lines somewhat outcurved and 
sinuous, very fine; subterminal line indicated by a few small black spots on interspaces, those towards costa 
and tornus with a few white scales; a white line on discocellular and a white point at origin of vein 4. Abdomen 
and hindwings yellow. Hindwing below darker yellow; a streak on cell dark purple; the three dentate lines 
purple, the medial not extending below vein 4. Expanse: 40 mm. Cayuga, Guatemala. 
S. alyzia Dogn. (74 g). <$. Shaft of antennae buff with purplish irrorations, the branches drab. Thorax alyzia. 
and forewing avellaneous. Forewing: an antemedial thick linear purple brown shade, inbent from costa, and a 
broad postmedial similar shade outangled opposite cell, followed by a fine black wavy line; another fine line 
medially between the two shades; some dark shading beyond the outer line, and a subterminal punctiform 
line. Abdomen and hindwing light ochraceous buff with some reddish suffusions; a fine dark postmedial line. 
Expanse: 23—28 mm. French Guiana. 
13. Genus: JPortlietria Hbn. 
cC Antennae bipectinated, the branches with terminal bristles, Palpi upturned, moderately scaled. 
Fore tibiae with long tufts; hind tibiae with two pairs of spurs. Forewing broad; vein 2 well before angle of 
cell; 3 near angle; 4 and 5 slightly apart from angle; 6 from just below upper angle; 7—10 stalked, 10 given 
off before 7; 11 free. Hindwing: veins 2—5 as on forewing; 6 and 7 from upper angle. 
Type: P. dispar L. 
P. dispar L. See Seitz Vol. II, p. 127. Introduced into the United States and doing considerable dispar. 
damage. 
VI 
70 
