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MIMALLO. By Dr. W. Sohaus. 
This is a family of Heterocera confined to the New World and Neotropical with the exception of three 
species which occur in the United States. It can be divided into two subfamilies, the Mimalloniae, in which the 
frenulum is absent, and the Lacosominae in which the frenulum is present, often greatly reduced. On fore wing 
veins 9 and 11 are from the cell, 10 a short spur from 9. On hind wing vein 8 anastomoses with vein 7 at 
base. The pupal case is of a leathery texture with an opening at each end, and is usually enclosed in leaves and 
well concealed. (Dr. W. Schaus). 
I. Subfamily: Mimalloninae (without frenulum). 
I. Antenna pectinated to tips. 
A. veins 7 and 8 of fore wing on short stalk 
B. veins 7 and 8 of fore wing well stalked 
C. vein 6 8 stalked. 
1. veins 3 and 4 on fore wing apart. 
a. outer margin of fore wing excurved or sinuous 
b. outer margin of fore wing not excurved or sinuous 
2. veins 3 and 4 on fore wing stalked 
II. Antenna pectinated, the tips serrate 
Mimallo. 
Cicinnus. 
Psychocampa. 
Euphaneta. 
Aleyda. 
Roeloja. 
1. Genus: Mimallo Hbn. 
Antenna bipectinate to tip. Palpi obliquely ascending, thickly scaled, the third joint small. Hind 
tibiae with terminal spurs. Fore wing more or less acute and falcate; outer margin usually somewhat excised 
below apex, crenulate and inbent below vein 3, variability existing in specimens of the same species. Vein 2 
from about middle of cell; 3 before angle; 4 from lower angle; 5 from middle of discocellular; 6 from close to 
upper angle; 7 and 8 on short stalk; 9 and 11 from cell; 10 as a spur from 9. Hindwing: costa convex; termen 
prolonged at veins 7, 3 and anal angle, crenulate on interspaces; vein 2 slightly beyond middle of cell; 3 before 
angle; 4 from lower angle; 5 from middle of discocellular; 6 from upper angle; 7 from before end of cell; 8 well 
upcurved from base of cell. 
Type: M. amilia Stoll. 
amilia. M. amilia Stoll. (87 a). Male: Body and wings light drab grey, frequently suffused with drab, thinly irrorated 
with black scales. Forewing: a wavy antemedial cinnamon drab line; a large vinaceous brown spot over 
discocellular and adjoining space, containing two hyaline spots and a light drab grey line within its edge; the 
fine grey somewhat lunular outer line defined by vinaceous brown narrowly on basal side, but expanding 
somewhat at costa, the outer edge narrow between veins 4 and 7, dark vinaceous brown, expanding to costa 
and below vein 4 to inner margin, its outer edge lunular between veins 2 and 4; cilia mostly fuscous. Hindwing: 
a broad vinaceous patch near base; outer line as on forewing, the dark vinaceous brown space following it 
very irregular and projecting towards termen between veins 3 and 4. Wings below with outer line lunular 
between veins, subterminal on hindwing; apex of forewing, spots above tornus, and small terminal spots towards 
apex of hindwing dark vinaceous brown. Female-. The termen of wings more even. Expanse, male, 33—52 mm; 
female, 44—72 mm. From Mexico to Rio de Janeiro. 
hector. M. hector Dogn. (87 a). Male : General aspect of amilia. Body and wings almost white. Forewing: a fine wavy 
orange cinnamon antemedial line from a small costal spot and partly interrupted; a double oblique small hyaline 
spot on outer edge of discocellular; outer line outangled at vein 6, fine, defined on inner side by a fine mikado 
brown line, followed from vein 6 to costa by a vinaceous cinnamon patch, crenulate on outer edge, and from below 
vein 5 to inner margin by an army brown space expanding to vein 2, its edge inset below vein 2. Hindwing: 
a small orange cinnamon spot near base; the line as on fore wing, but from before middle of costa followed by 
a broad fawn color space, with an irregular outer edge. Wings below with some black irrorations. Fore wing: 
hyaline discal spot partly edged by a double fine cinnamon line; outer line crenulate, present at costa and from 
vein 3 to inner margin followed by dark vinaceous drab spots. Hindwing: a fine subterminal crenulate line. 
Expanse 44 mm. Sta. Catharina, Brazil. 
hrosica. M. brosica sp. n. Male: Body tilleul buff, the thorax and dorsum of abdomen on basal half suffused 
with vinaceous buff. Forewing tilleul buff; a few scattered black scales on basal third and termen; termen 
somewhat suffused with vinaceous buff; a wavy pinkish cinnamon antemedial line, outcurved on costa, vertical 
from within cell to inner margin; a small hyaline lunule on discocellular; postmedial line fine, outbent on 
costa, lunular, fuscous, below vein 7 inbent, straight, cinnamon, below vein 4 thicker and lunular, outwardly 
