PREPONA. By H. Fruusrorrer. 559 
P. laéries-group. The peculiar under surface, with abundant tortous and interrupted lines, is already entirely 
of the Jeértes-character, exhibiting among other marks also the two large apaturoidal ocelli of the hindwings. 
The character of the upper surface is shown by our figure 112 ¢ (bahiana), that of the under surface 112d 
(proschion). The northernmost branch bahiana Fruhst. (112 c) has beneath the greatest likeness with P. eugenes 
(112 b), though the ochre-yellow hue in the submedian zone of the forewings is absent and the black post-discal 
interrupted band considerably broader. The specimen figured by us is a 2 (no ¢ as stated in the table). The 
blue area of the upper surface throughout paler than in the more southern forms. From Bahia in my 
collection. — santina Fruwhst. beats the Bahia-race in its size; the blue zone of the upper surface remains darker, 
besides of a more intense lustre, and in the 34 there is always a forewing-band going as far as to the costal 
margin. The under surface differs from bahiana by a darkening of the submarginal zone of both the wings, 
similar as in proschion. Espiritu Santo. — pylene Hew., an extremely rare form resembling santina, though 
it has no transcellular blue spots of the forewings, the under surface being always overhued by reddish 
instead of grey. — miranda Stgr. resembles pylene from which it is only distinguished by the presence of sub- 
apical spots on the upper surface. Very rare in Santa Catharina, 2 §¢ from Theresopolis to the south of Blu- 
menau in Coll. FRuHsToRFER. — proschion Fruhst. (112 d) forms the extreme with the narrowest bands among 
the collective species. I have specimens at hand with scarcely half as extensive blue band of the upper surface 
as we find it in bahiana. The transcellular spots are absent as a rule, though there are 3g as well as 99 with 
small blue splashes, but also as a rarity 22 with 3 imposing maculae. The under surface is decidedly paler 
brown than in miranda and the submarginal heart-spots considerably smaller. Rio Grande do Sul, very rare, 
especially in a good condition; but there are 11 gg, 6 29° in Coll. FRUHSTORFER *). 
P. eugenes ditfers from P. pylene above by the light yellow hair-tuft. Some local races are, how- 
ever, so closely allied with P. pylene that I did not yet recognise it in 1904. The most essential mark is formed 
by the pregnant silver-spotting of the under surface being distally bordered by the small median black strokes 
of the forewings. The submarginal reniform or cordiform spots of the forewings are smaller and scarcer than 
in pylene. P. eugenes is more widely distributed than pylene. It is met from the Amazon to Bolivia and Para- 
guay, and in South Brazil as a great rarity in Santa Catharina. The most noted geographical race is eugenes 
Bates (112 b). The 3 has above very nearly the appearance of laértes Hbn. the blue bands of which are, how- 
ever, on the forewings costally somewhat broader. The colour of the band is in the middle of a greenish light- 
blue which turns dark-blue at the margin. Otherwise the wings are unicolorously jet-black. Under surface: 
The wing-base is of a silvery white, as well as the apex of the cell and a discal row of 5 very irregular white 
spots being proximally bordered in broad black. At the base we notice a broad black semi-circle surrounding 
the precostal, and being similar though fainter in pylene bahiana Fruhst. and pylene santina Fruhst. On the 
hindwings we notice towards the apex a black streak, and between the ocelli there are 3 light-blue dots. Anal 
and subanal region of the hindwings densely set with fine white scales. Ground-colour of the wings yellowish- 
grey, but the centre of the forewings is traversed by a yellowish-brown region from the base into the anal angle. 
Palps and feet above black, below white. Eyes reddish-brown, antennae black. Head and thorax above black, 
below whitish-grey. Abdomen above black, below yellowish-grey. The 2 exhibits above a somewhat. broader 
blue band than the 3, and also at the costal margin beyond the cell a large roundish blue macula. Occasionally 
there are also two small blue dots to be noticed yet beyond the cell. The under surface of the wings is some- 
what more profusely white, the ground-colouring predominantly light yellowish-brown and on the hindwings 
the silvery white scales are concentrated to a distinctly noticeable submarginal band. The ocelli are distally provi- 
ded with broader white ringlets. Known from Surinam, the Lower and Upper Amazon. Fass has discovered 33 
on the Upper Rio Negro at an altitude of 800 m. —simois //dr. an extremely rare territorial form of Western Co- 
lombia, differs from eugenes chiefly by a silvery grey, instead of ochre-yellow under surface. —laértides Stgr. above 
more greenish blue, has larger silvery-white spots of the under surface of the forewings than eugenes. —decorata 
Fruhst. forms an intermediary between eugenes diluta from the Amazon, eugenes Bates and laértides Sigr. from Pa- 
raguay. 3: Onthe forewings the blue median band grows narrower in an upper direction, being continued to the 
costal margin in the shape of 3 small blue spots. The under surface of all the wings much lighter, the ground co- 
lour grey and only in the discal area and anal angle of the forewings yet loam-yellow. The discal silvery bands 
of both the wings broadened and coherent, thus not consisting of isolated spots as in eugenes. Furthermore, 
the whole hindwing-cell is covered with silvery white scales, while in eugenes only the cell-apex apears covered 
with silver. All the black zigzag-bands are greatly reduced. The marginal zone of the hindwings throughout 
with greyish-white scales, while in eugenes there are only in the anal angle some white dots seen. 2: considerably 
larger than the eugenes-2, decorated with duller blue bands being prolonged towards the costal margin in the 
shape of 3 broad blue dots. Under surface lighter than in eugenes, and decorated with broader silvery spots 
in the cell as well as in the discal area. The under surface of the hindwings still more profusely decorated, 
since the discal and basal silver-spotting is confluent in it, forming one single region. The discal zigzag- 
A 
lines greatly reduced like in the 3, instead of it the internerval submarginal cordiform spots of the under 

*) Valve conspicuously stunted. The Phyteuma-flower-head-like uncus-appendages smaller and neater than in the 
allied species. 
bahiana. 
santina. 
j 
Z, 
pylene. / 
miranda. 
proschion. 
eugenes. 
simois. 
laértides. 
decorata. 
(oe) 
