crosa. 
excavata. 
notata. 
guianaca. 
althora. 
noaha. 
mahlaha 
652 TROGOPTERA. By Dr. W. Schaus. 
1. Genus: Trogoptea’a H.-Schdff. 
Male : Frenulum present. Antenna bipectinate. Palpi short, upturned, hairy. Legs mostly hairy; hind 
tibiae with long hairs and terminal spurs. Forewing: costa straight, slightly convex at tip, apex acute; outer 
margin straight to vein 3, excurved between 3 and 2, and more deeply excised at tornus and inner margin; 
vein 2 from well before middle of cell; 3 before angle; 4 from lower angle; 5 from middle of discocellular; 
6 from upper angle; 7 and 8 moderately stalked; 9 arid 11 from well before end of cell, close together; 10 as 
a spur from 9. Hindwing : costa slightly convex to middle, excurved to tip of vein 8, and more deeply excurved at 
apex; below vein 7 termen slightly rounded; vein 2 from beyond middle of cell: 3 before angle; 4 from 
lower angle; 5 from middle of discocellular which is oblique; 6 from upper angle; 7 from close to end of cell; 
cell less than half the length of wing. 
Type: T. erosa H.-Schdff. 
T. erosa H.-Schdff. (88a). Male : Body and wings olivaceous drab. Forewing: costal margin suffu¬ 
sed with whitish; a fine postmedial dark line slightly outangled on costa. Hindwing with termen denticulate. 
Expanse: 33 mm. Brazil. 1 $ in Mus. Berlin e coll. Maassen. 
T. excavata Wkr. (88 a). Male : Body and forewing pinkish buff, the hindwing cinnamon buff, all 
with scattered fuscous scales. Forewing: a paler streak on discocellular; postmedial line very fine and faint, 
hair brown, better marked at inner margin, followed by a slightly darker shade, oblique from vein 5; cilia 
wood brown tipped with white, also on hindwing which has no markings. Wings below pale pinkish cinna¬ 
mon with a few scattered dark scales; fine black streaks on discocellulars; line of forewing forming a black 
spot on costa and short line at inner margin; some huffy brown shading on termen below apex to vein 4 on 
forewing; hindwing with a dark postmedial line on costa. Expanse: 39 mm. Rio de Janeiro, Sta. Catherina, 
Brazil. 
T. notata Wkr. (88 a). Male-. Head and collar light ochraceous buff. Thorax and abdomen pale pin¬ 
kish cinnamon. Forewing to line pinkish buff with af few dark scales; traces of a fine antemedial line; a black 
streak on discocellular; postmedial line slightly out curved, black and well marked on costa, then faint, 
well defined from vein 5 to inner margin; termen ecru drab suffused with light cinnamon drab from vein 
4 to inner margin; cilia tipped with white, at excisions the base fuscous. Hindwing pinkish cinnamon, at 
apex light drab grey; a fine dark medial line straight from costa to inner margin above anal angle; cilia 
buffy brown tipped with white. Wings below tilleul buff with a few dark scales; black spots on discocellulars. 
Forewing: a thick postmedial black line on costa then almost obsolete; better marked from vein 4 to inner 
margin. Hindwing: a faint curved medial line heavily marked on costa. Female cinnamon buff with lines fine. 
Expanse: male, 30 mm; female, 36 mm. Castro, Parana; Sao Paulo, S. E. Brazil. — guianaca subsp. n. (88 a) 
Male: Body and wings avellaneous irrorated with a few snuff brown scales; cilia slightly tipped with white. Fore¬ 
wing: a very faint, fine antemedial line; a discocellular narrow spot defined by darker edging; postmedial 
line broader on costa, outangled and inbent, slightly sinuous followed by a hair brown patch between veins 
2 and 5; costal edge sayal brown. Hindwing without line. Wings below mostly suffused with pale clrab grey 
irrorated with black; black streaks on discocellulars. Forewing: postmedial line faint, more outcurved, termen 
broadly cinnamon rufous except at apex and tornus. Hindwing: a faint outcurved medial line, the termen 
narrowly cinnamon rufous. Expanse: male, 34 mm; female, 41 mm. French Guiana; Amazons; Merida, 
Venezuela. Genitalia slightly different from excavata. 
T. althora sp. n. (88 a). Male : Body and wings light tawny olive suffused with light pinkish cinnamon with 
a few scattered darker scales. Forewing: costal edge olive buff; outer half of costa suffused with pale vina- 
ceous fawn; a black line on discocellular outwardly pale edged; outer line remote, dark, thicker on costa, 
slightly outcurved, very faint from vein 6 to inner margin, followed by a large dull fuscous patch from vein 
4 to inner margin; cilia darker, tipped with white at excisions. Hindwing: a very fine dark medial line; cilia 
tipped with white. Wings below to line pinkish buff; prominent black spots on discocellulars, a postmedial 
drab shade outwardly edged with pallid mouse grey; termen of forewing from vein 8 to vein 3 verona brown 
and some similar shading on hindwing at apex; cilia tawny olive tipped with pinkish cinnamon on hindwing. 
Expanse: 31 mm. Cayuga, Guatemala. — Specimens from Costa Rica are larger, expanse 37 mm, the cilia 
at excisions sometimes roseate; there is no difference in the genitalia. — noaha form n. Male: Body and wings 
like althora without the light pinkish cinnamon suffusions. The wings below with a very faint pinkish tinge 
on basal half, costal edge of forewing avellaneous. The genitalia slightly different. Expanse: 29 mm. Jalapa, 
Mexico. — mahlaha form n. Male: Head, collar and thorax pale pinkish cinnamon. Forewing to line and on 
costa to apex pale pinkish cinnamon; costal edge avellaneous; termen and hindwing avellaneous irrorated with 
fuscous scales; a black discal point on forewing and the line fine, dark, outcurved and well inbent; cilia fus¬ 
cous tipped with white; no line on hindwing. Underside paler; a small black point on both wings; line on fore- 
