554 
NYGMIA; DESMOLOMA. By Dr. W. Schatjs. 
14. Genus: STygmia Hbn. 
<$. Antennae bipectinated, branches with terminal bristles. Palpi oblique. Legs hairy; hind tibiae 
with two pairs of spurs. $ with large anal tuft. Forewing: vein 2 well before end of cell; 3. 4, 5 from near angle 
of cell; 6 from or below upper angle; 7—10 stalked; 10 from beyond 7; 11 free. Hindwing: veins 3 and 4 
stalked; 5 from above angle; 6 and 7 stalked. 
Type: N. phaeorrhoea Don. 
phaeor- N. phaeorrhoea Don. (partim chrysorrhoea Auct.). See Seitz Vol. II, p. 135. Introduced into the 
rhoni. pTnited States like the foregoing species. 
15. Genus: Desmoloma Fldr. 
G- Palpi upturned, thickly scaled. Frons with long pointed tuft. Antennae pectinated for two thirds 
then serrate. Legs hairy, hind tibiae with two pairs of spurs. Forewing: costal margin straight; apex acute; 
termen oblique; inner margin straight; vein 2 well before angle; 3 close to angle; 4 from angle; 5 slightly 
above; 6 from upper angle; 7 and 9 absent; 10 and 11 stalked. Hindwing: costal margin straight from base 
then upcurved and produced to a hairy point, with an upturned tuft of hairs at middle of costa; from vein 
8 to vein 6 the margin is excised between the veins, below 6 to vein 3 crenulate. Vein 2 well before angle; 
3 and 4 stalked; 5 above angle; 6 and 7 from upper angle. 
Type: D. styracis Fldr. 
cMronoma. D. chironoma Dyar (74 g). <$. Body tawny, the thorax and abdomen above darker, the abdomen 
underneath white. Forewing tawny suffused with purple; some scattered black dots and striae; an antemedial 
darker curved fascia, its outer edge angled in cell, edged by a faint pale line; a round dark edged discal mark, 
filled in with olivaceous scales and partly surrounded by a white line; postmedial line dark, incurved at cell, 
and outcurved to tornus partly edged basad by a fine white line, not always present. Hindwing white, the 
costa broadly, the termen and inner margin narrowly like forewing. Expanse: 35 mm. French Guiana. — 
pacha, pacha /. 7iov. <$. Larger and slightly darker, the markings very indistinct. Abdomen below fuscous brown, only a 
few white hairs on anal segments. Expanse: 44 mm. Pacho, Colombia. 
mollis. D. mollis Dyar. (74 h). G- Body vinaceous fawn, abdomen white below on basal half. Forewing 
light vinaceous fawn, with pale olivaceous brown striae and dots; antemedial fascia light brownish olive, edged 
with white, evenly curved on outer edge, not reaching costa; discal spot light olive, edged with white above; 
postmedial line fine, whitish, incurved below costa, and below vein 4 ending near middle of termen, outwardly 
shaded with light brownish olive, extending to termen at vein 3. Hindwing white, the costa and inner margin 
light vinaceous fawn, the termen narrowly so. French Guiana. 
sign ala. D. signata Dyar (74 h). G- Thorax brownish olive. Abdomen above fawn colour, anal hairs buff 
Thorax and abdomen below white. Forewing: costa narrowly, inner margin broadly from before middle to 
termen, and base light cinnamon drab; an antemedial small brownish olive spot on costa followed by a 
similar broad fascia from middle of wing at subcostal to inner margin near base, the basal interspaces below 
cell also brownish olive; discal spot U shaped, white filled in with russet; a russet shade from the fascia 
between veins 2 and subcosta 1 to termen, somewhat darker beyond the postmedial line which is white, wavily 
outbent from costa and excurved from vein 4 to termen at vein 2. Hindwing white, costa to near apex light 
cinnamon drab edged by a subterminal pale line, the apical triangular space brownish olive. $ broader winged, 
more uniformly coloured, the antemedial fascia, curved, expanding towards inner margin, edged and cut by 
white lines. Hindwing with the margins broadly dark cinnamon drab. Expanse: $ 37 mm, $ 45 mm. French 
Guiana. 
styracis. D. styracis Fldr. (74 h). G- Body and fore wings silky dresden brown. Forewing: the markings darker; 
a small basal triangular spot below cell; an antemedial small spot on costa’; a narrow inbent fascia, partly broken 
into spots; a fine wavy medial line, followed by another irregular line from discal spot to inner margin; a fine 
postmedial line broader opposite cell, outcurved below vein 3, inbent and vertical across submedian; an oblique 
subapical shade with a downturned subterminal line; some striae scattered over the wing; discal spot orange 
yellow, partly edged with white. Hindwing white, the costal margin broadly dresden brown crossed by a darker 
subterminal shade. The $ similar, the lines on forewing replaced by numerous well marked striae; antemedial 
fascia very broad and dark, below submedian reddish. Hindwing with termen very broadly suffused with silky 
fawn colour. Venezuela; Colombia; Bolivia. 
