plagiaia. 
althca. 
rotunda. 
666 BITEROLFA; ULMARA. By Dr. W. Schaxts. 
Hindwing like forewing, the line straight; mikado brown suffusions before the line towards inner margin, and 
beyond the line to anal angle; a whitish shade from near apex to termen at vein 3, then along termen to 
anal angle. Forewing below light drab, marked as above, the line finer from below angle, more heavily marked 
on costa. Hindwing below largely pale pinkish buff to line which is paler and outcurved; suffusion at anal angle 
orange or pinkish cinnamon. Expanse: 36 mm. French Guiana; Amazons; S.E. Brazil. 
M. plagiata Wkr. (88 g). Male : Body pale drab grey, the collar drab grey. Wings partly pale drab grey 
with a few scattered black scales. Forewing: base except on inner margin suffused with vinaceous buff; an 
antemedial light cinnamon drab line well outcurved below median to fold; a broad whitish lunule on outer edge 
of discocellular: outer line orange rufous on costa, outbent and acutely angled below vein 8 then inbent, slightly 
sinuous, c-arob brown, inwardly diffuse, edged with auburn, from below vein 5 outwardly with white which 
branches from angle to termen at vein 8 where it is joined by a white line above vein 8; termen with diffuse 
light drab shading. Hindwing: inner margin broadly suffused with ecru drab, the termen with light drab; line 
remote, almost subterminal, slightly sinuous, outwardly edged with white, inwardly with auburn from below 
vein 4, broadly to near cell, then narrowly near inner margin. Forewing below: the inner margin broadly white, 
the line not extending below' vein 2. Hindwing below light cinnamon drab with more numerous black scales: 
the line inwardly edged with burnt sienna; an amber brown patch at anal angle. Expanse: male, 44- 56 mm; 
female, 37 77 mm. The Guianas; Bolivia; S.E. Brazil: Paraguay. 
12. Genus: Bfterolfa gen. n. 
Male-. Antenna bipectinate, short on terminal third. Palpi porrect, short, thickly scaled. Legs hairy. 
Forewing: apex produced; termen incurved below apex and sinuous; vein 2 from middle of cell; 3 well before 4; 
4 from lower angle; 5 below middle of discocellular; 6 near upper angle; 7 and 8 well stalked. Hindwing: 
termen rounded: anal angle acute; vein 2 just beyond middle of cell; 3 well before 4; 4 from lower angle; 5 
below middle of discocellular : 6 well below upper angle; 7 from angle. Genitalia similar to those of Psychocampa. 
Type: B. althea Schs. 
B. althea Schs. (88 g). Male : Body and wings pinkish cinnamon; abdomen with a sublateral fuscous 
line, not reaching base or anal segment. Forewing: a fine orange cinnamon streak from before middle of costa 
to uppei angle of cell and below vein 6, and a similar streak from cell below vein 2; outer line oblique, sayal 
brown, angled at vein 7 near termen, inbent, bister, subterminal, outwardly edged with purplish grey and a 
fine hair brown line which extends to apex and bifurcates below vein 3; cilia bister tipped with pinkish cinnamon. 
Hindwing: line postmedial outcurved at costa and straight to inner margin below middle; followed by a dark 
shade from costa bifurcating below vein 5, the outer branch fine, downbent to near termen at vein 2. Wings 
below very similar; no oblique shading at veins: line on hindwing fine, postmedial, evenly outcurved. Expanse: 
41 mm. French Guiana. 
13. Genus: Ulmara gen. n. 
Male : Antenna bipectinate to tips. Frenulum present. Palpi hairy, porrect. Wings broad, the termen 
crenulate. Forewing: apex not acute; vein 2 from middle of cell; 3 well before angle; 4 from lower angle; 
5 slightly above angle; 6 from upper angle; 7 and 8 on rather short stalk. Hindwing: termen crenulate; vein 2 
from middle of cell; 3 before angle; 4 from lower angle: 5 from a little above angle; the discocellular from vein 
5 very oblique and upbent to vein 6; 7 from before 6. The genitalia are near those of Trogoptera. 
Type: U. rotunda Dogn. 
U. rotunda Dogn. (88 g). Male : Body bister. Antenna tawny olive. Wings drab suffused with neutral 
grey; cilia verona brown. Forewing: a round fuscous spot at base below cell to vein 1 edged by the fine wavy 
verona brown antemedial line; a few white scales forming a point on discocellular; outer line fine, lunular 
dentate, outbent from costa, verona brown inwardly edged with light buff. Hindwing: line as on forewing, 
postmedial. preceded from vein 5 to inner margin by a broad fuscous shade. Wings below light drab largely 
mottled with pale silvery grey scales; the line as above, hair brown, fine, without any light buff edging: cilia 
benzo brown. Expanse: 40 mm. Female : A specimen received from Berlin Museum for identification probably 
belongs to this species, agreeing in the shape of the lines and venation. Body and wings light avellaneous buff 
irrorated with silvery light buff scales; the wings to line suffused with light drab; the lines cinnamon; the costa 
of hindwing broadly whitish. Wings below pale, the lines hardly perceptible. Expanse: 46 mm. Monte Tolima 
and Bogota, Colombia. 
