dyari. 
furcata. 
pertanda. 
flabellum. 
dissimilis. 
terrabensis. 
basalis. 
400 THYRIODES; MARATHYSSA. By Dr. M. Deaudt. 
centre of costa; reniform stigma and posterior transverse line as in the preceding species, distally on costa 
the usual dark brown triangle with 3 small black spots below, each outlined by white. Apical area grey. Hind- 
wings whitish in basal area, veins and marginal half brown with white anal streak. From Florida and the 
Bahama Islands. 
E. dyari nom. n. (= amatrix Dyar nec Wkr.). Forewings pale reddish, the area between 1 and 2 and 
at apex slate-grey, a brown oblique band in basal inner marginal third having a white edge and outlining in 
an arch the grey area between 1 and 2. Posteriorly a inverted white arched line. Marginal area narrowly 
fuscous below, expanding above and edged by a white arch, that conjoins with an oblique line which extends 
to costa. The grey apex is intersected by a white line. The pale but shaded reniform stigma is crescentiform. 
Hindwings white with wide black marginal band, that merges into red towards the margin. Wing expanse: 
32 mm. Described from 1 $ from Guerrero (Iguala) Mexico. 
E. furcata Wkr. (= distracta Wkr., nattereri Drc. nec Fldr.) (55 c). Forewings pale fuscous, admixed 
with grey-brown and grey. Anterior transverse line whitish with blackish outer edge, anteriorly a white line 
from cell to inner margin, the area between the two being a brighter red. A white oblique streak from costa 
to lower angle of cell. The whitish reniform stigma has brown and black dots above and below with a brown 
spot distally. In centre of inner margin a whitish spot and a blackish median line from beyond the cell to inner 
margin. The whitish postmedian is double and posteriorly below veins 5 and 6 small black spots with white 
edges. Apical area bluish wdiite beyond the white subterminal and turning to red-brown in low^er half. Hind- 
wings brownish white, dark brown in marginal half, and with reddish tone towards anal angle and a white 
anal streak. Mexico and Haiti. 
E. pertanda Dyar (55 c) closely resembles furcata, but is rather considerably larger. The brown spot 
behind the reniform stigma is yellow and more extensive; the subterminal behind it is more curved outwardly; 
the small black spots between 5 and 3 diffuse outwardly and are indistinct, the spot below vein 6 is small and 
touches the subapical dark triangle. Hitherto only known from Colima in Mexico. 
2. Genus: Thyriodes Gn. 
Differs in the first place from Eutelia by the complete, not excised margin of forewings. Palpi are 
longer than in preceding, the 3rd segment is hairy on top. The scaly thorax has an open tuft anteriorly and 
posteriorly. Body sleek, abdomen with tufts on the basal segments, the anal brush is very short. Only 3 species. 
Type : Tli. flabelhim Gn. 
Th. flabellum Gn. (55 c). Forewings pale chocolate-brown, somewhat more darkly suffused before and 
behind the black-brown transverse lines. The anterior line is very strangely curved; it is excurved from costa 
to vein 1, below vein 1 it forms a prone “S”; the area beyond to a vertical line, that touches the arch of the 
antemedian on the median nervine, is filled with deep velvety brown; then follows a vertical, undulate, median 
line that is shaded with dark brown inwardly. Reniform stigma indistinct. Postmedian line sharply angulated 
outwardly on vein 6 where it has a yellow-white upper edge and forms the outline to a dark triangular patch 
with two black spots outwardly. Hindwings grey-brown. Mexico, Guatemala, Panama. 
Th. dissimilis Drc. (= fiabellum Drc. part.) closely resembles the preceding, but differs anatomically 
in that it has not got the fold on the central tibiae of the $ filled and covered with scales like preceding species. 
Besides this the antennae of $ are ciliate, whilst in flabellum they have short pectinations. Forewings grey- 
brown, with very similar markings, the antemedian of a similarly curved shape; the large reniform stigma 
with black circumscription; on the undulate subterminal there are black dots above and below vein 5 and on 
the submedian fold. Hindwings black-brown with whitish basal area and a black and white streak at anal 
angle. Wing expanse: 32 mm. Costa Rica, Panama, Colombia. 
Th. terrabensis Schs. is darker and more monotonous than dissimilis. Forewings dark violaceous grey, 
shaded with brown in basal area. The marking of the lines is very similar to the preceding, the anterior trans¬ 
verse line is more angulated outwards, not so roundly arched; beyond it there is a triangular black-brown spot 
on costa and a larger one at inner margin, the outer edge of which is vertical, the lower edge excurved and the 
inner edge oblique. Hindwings dark brown, with dark scales at anal angle. Wing expanse: 27 mm. Costa 
Rica (Terraba). 
3. Genus: Marathyssa Wkr. 
Differing from Thyriodes by the shorter 3rd segment of palpi and which is not hairy on upperside. 
A large scaly brush on frons. Metathorax with a partite tuft. Abdomen with tufts on dorsum of the last seg¬ 
ments. There are 3 american species. Marasmalus Grt. is a synonym of the Genus. 
Type: M. basalis Wkr. 
M. basalis Wkr. (= ventilator Grote) (55 c). Body white admixed with fuscous. The white forewings 
suffused with brown. Subbasal line is a white streak with black edge having a red and black spot posteriorly, 
