992 
THRIX; JACOONA; EOOXYLIDES. By Dr. A. Seitz. 
gama. 
cloella. 
scopula. 
hypoleuca. 
terana. 
martina. 
inopinala. 
licinius. 
myrmecus. 
anasuja. 
irmina. 
jusana. 
metasuja. 
tharis. 
72. Genus: Thrix Doh. 
The name refers to a long hair-pencil on the forewing, near the centre of the hind-margin. Subcostal vein 
of forewing with 4 branches. But 1 species is known. 
T. gama Dist. Whilst the above resembles yet Neoch. amrita, though it has a whiter anal portion 
of the hindwing, the $ above is very much like a Ch. freja-Q, beneath similarly coloured to cloella Weym., from 
Nias, but the forewing is grey in the basal portion, the rusty-yellow colour is more confined to the apical 
half, gama is described from Penang, but it occurs also in Sumatra and Borneo. 
T. scopula Drc. (159 c). $ above violettish-black, all the margins lighter; hindwing in the anal portion 
of a bright light blue, intermixed with white spots bordered with black. The $ above resembles that of martina. 
Beneath the colours are distributed in such a way that the upper two thirds of the forewing and the upper 
third of the hindwing are yolk-coloured, the rest of the wings being greyish-white. For this species the genus 
Virgarina Drc. was separated. 
T. hypoleuca Hew. (159 h). For this species another separate genus has been established: Manto Nic. 
The typical form is described from Java; beneath orange-yellow with a narrow whitish, black-marked anal 
area; the <$ above is black with a bluish-green metallic gloss in the cell and submedian area of the forewing 
and over the whole distal portion of the hindwing. The $ is dark brown with a broad white anal area containing 
3 black spots. — terana Fruhst. (159 h) comes from Sumatra; the exhibits also above some white in the anal 
part of the hindwing and in front of it black spots. martina Hew. ($ = paluana Stgr.) for which form again 
a new genus ( Pseudomyrina ) was established has in the $ still much more anal white on the hindwing above 
and proximad to it a lighter blue; beneath as in terana, but the form is generally larger. - inopinata Btlr., from 
Nias, looks above like an African ( Jolaus) timon (Vol. XIII, pi. 67 d); forewing velvety black, basal third olive- 
coloured, with a greenish-grey gloss, in a certain light almost emerald-green. Hindwing in the basal half brown, 
towards the anal region greyish, in the cell violet. Under surface orange; in the forewing the distal two thirds 
are dingy, the proximal third silky white, with a large central silvery grey spot. Hindwing behind whitish, a 
shortened black zigzag line from the hind-margin to the lower median branch; behind this line 4 minute black 
spots and 2 in the anal area. 
T. licinius F. (146 B f). Upper surface brown with a white, black-spotted anal portion of the hindwing, 
which in the $ is irregularly, in the $ more smoothly defined; the shows a very large, lustrous violet iridescent 
spot in the hindwing, extending from the costal margin to beyond the cell. Under surface dull orange, the anal 
two thirds of the hindwing are white. Before the bases of the small tails a group of small black spots. — 
myrmecus Fruhst. (159 g), from Borneo, is hardly different, the white of the hindwing beneath is said to be 
somewhat more yellowish; the costal margin of the forewing is not so much darkened grey, and the black spots 
before the anal margin of the hindwing are above and beneath larger and more roundish. 
73. Genus: •lacoona Dist. 
The costal vein of the forewing soon terminates into the costal margin. Subcostal vein with 4 branches, 
the first branch anastomoses with the costal vein. The anterior discocellular is long, almost as long as the middle 
one; the lower one is somewhat concave oblicpre. Of the tails of the hind wing that on the submedian is long 
and ensate, that on the lower median short. 
Z. anasuja Fldr. (146 f as yojana). q with a large scent-reflection at the costa of the hinclwing; the 
posterior portions of both the wings above metallic greenish-blue. Under surface at the margin and apex of 
the wings ochreous, towards the base paler; before the small tails blackish markings. The typical anasuja comes 
from Sumatra and Malacca. — irmina Fruhst., from Nias, is above darker blue than anasuja ; subapical spot 
reduced. — jusana Drc^{ 1-5-9 b) and metasuja Drc. (153 k) are forms from Borneo; the former has a broad and 
long subapical band, the latter a narrow one. — This imago is very rare; I took a $ only once, on the 22nd 
of January 1892, next to the Botanical Gardens in Singapore. 
' - (/Ata 4 *>•>. ~ck 7«- ( 4 £ So. /-r 3 fr) 
d / V. \7 ' ~ 
74. Genus: Eooxylides Nic. 
In spite of its distinct close alliance to the preceding ones, this genus has been separated and brought 
in relationship to Hypolycaena from which, however, it differs in the shorter discal cell of the forewing and only 
3-branched subcostal vein. But how unreliable the marks of distinction stated are, may be seen from the fact 
that e. g. the form paluana was ranged here, though according to Druce it is the normal $ of ( Pseudomyrina) 
martina Hew. 
E. tharis Hhn. ( = pharis Dhl.-Hew.). Recognizable by the under surface, where the golden yellow ground¬ 
colour is defined by small black arcuate streaks from the bluish-white anal white being dark-spotted before the 
