428 
THYRGIS; COMPOSIA. By Dr. M. Hering. 
jaonis. 
militia. 
phlegon. 
marginata. 
constricti- 
fascia. 
angustifas- 
cia. 
chislon. 
childon. 
Columbiana. 
flavonigra. 
ceron. 
credula. 
fidelissima. 
D. jaonis Strd. (60 g) resembles the $ of trapeziata Wkr. (60 c), in the forewing the discoidal spot 
on the transverse vein and the spot situate basally to it are connected; the latter as well as that situate at 
the tornus being broadly filled with red; the margin of the hindwing is in a basal direction from the red 
band much broader black, as well as the streak on the cell-end. Brazil (S. Joao). 
3. Genus: Tliyrgis Wkr. 
From the preceding genera Thyrgis is distinguished by the posterior angle of the hindwing projecting 
distally. The antennae are in the 3 bipectinnate, in the $ doubly dentate, the pinnae not attaining the thickness 
of the shaft. In the forewing the 1st and 2nd radials are separate, the 3rd to 5th being forked, the 5th rising 
before the 3rd; the 1st median branch is separated from this fork. In the hindwing the radial ramus and the 
1st median branch rise on a short fork. The 3rd palpal joint attains about half the length of the second. 
From similarly coloured and marked species of Calodesma, Thyrgis is distinguished by the separate course 
of the 2nd radial in the forewing; in similar Syntomidae (Coreura ) the hindwing lacks the subcostal. Hereto 
probably also Cal. kedar and dilutana Drc. belong (p. 432). 
Th. militta Stoll (60 e). C and $ not differently coloured. The tinge of the forewing varies from 
crimson to orange and yellow. Hindwing either uni-coloured or with traces of a yellow or red submarginal 
band. The typical militta Stoll with a narrower band of the forewing in Brazil, Bolivia, Venezuela, Colombia. 
— phlegon Drc., from Ecuador, the Upper Amazon River and East Peru, with a band of the forewing of about 
4 mm width. 
Th. marginata Btlr. (60 e) differs from the preceding species by the more distal position of the red 
transverse band of the forewing; in militta about a sixth, in marginata only a tenth of the discoidal cell is red. 
The 3rd palpal joint is more than half the length of the 2nd. Hindwing with a light red marginal band of about 
4 mm width. I did not see any forms of this species with yellow bands. Nicaragua, Bolivia. 
T-h. constrictifascia Dogn. was not before me. It is said to resemble militta phlegon, the red band 
is said to be straighter and not to traverse the discal cell, but only to touch it. It may be an Eucyane. Ecuador. 
Th. angustifascia sp. n. resembles marginata and was captured together with it. The position of the 
band of the forewing is like in the preceding, the band is narrower, proximally and distally with more pronounced 
projections, much narrower towards the anal margin, terminating behind or before the axillaris. The red 
margin of the hindwing is darker red, 2 mm broad at most. 1 $ from Bolivia (Bueyes, type), and 1 $ from 
Colombia in the Zool. Museum at Berlin, another $ from Ecuador in the Tring Museum. 
Th. chislon Drc. was not before me. Similar to childon, but the band of the forewing is much narrower, 
whereby it resembles the yellow-banded specimens of militta from which it differs beneath by the yellow abdomen 
and the blue submarginal dots of the forewing. Ecuador. 
Th. childon. Head and collar with white dots. Ventral part of the abdomen yellow, other parts of 
the body bluish-black. Wings blackish-brown, proximally with a blue reflection, forewing with a broad yellow 
transverse band. Under surface of both wings with a row of whitish-blue submarginal spots, childon Drc. 
with a narrower yellow band the edges of which are almost parallel. Ecuador. -— Columbiana subsp. nov. is 
somewhat larger, the yellow band is broader, distally convex. Colombia. 
Th. flavonigra Dgn. is unknown to me, and I can therefore not decide whether it is a genuine Thyrgis. 
Forewing black with a yellow transverse band not reaching the costa and proximal margin. HindAving uni¬ 
coloured black. Body black with yellow lateral spots at the collar. South East Peru (Rio Huacamayo). 
Th. ceron Drc. is likewise unknown to me; underside of the head yelloAA’, the body black. Wings 
black, the forewing with a yellow discal band as in militta, hindwing with a yellow-margined apex. Colombia 
and East Peru. 
4. Genus: Composia Hbn. 
Distinguished from Thyrgis by the 3rd palpal joint being very short, one fourth the length of the 
2nd at most. 
C. credula F. (= sybaris Cr.) (60 e). Body and wings blackish-brown, all over covered with spots. 
Ventral side of the abdomen white with black segmental margins. At the costa of the forewing in the basal 
part above 2 or 3 red spots, beneath a red stripe. Antilles (Jamaica, Haiti, Portorico, St. Thome). 
C. fidelissima H -Schciff. (= olympia Btlr.) (60 e) resembles the preceding, but it is less spotted white. 
Hindwing only with submarginal spots, intensely suffused with blue. Abdomen above uni-coloured black, 
lustrous blue, below like in the preceding species. Common in Cuba, but also from Florida to Brazil. — Larva 
