122 
ERIBOEA. By H. Frithstorfer. 
E. jalysus inhabits Macromalayana except Java and occurs northward as far as Tenasserim and Ton- 
tri'phonius. kin. Three geographical forms are to be mentioned: triphonius subsp. nov. (134 b) differs from the first described 
race from the Malayan peninsula by its larger size, the broader yellow and reddish-brown distal margin of the 
upper surface of the hind wings. The apical spot of the forewings grows larger than in specimens from Sumatra, 
the brown of the under surface darker than in jalysus and specimens from Tonkin. North Borneo, rare. —- 
jalysus. jalysus Fldr. (137 a) depicted according to a $ from Sumatra, is inferior to triphonius in the habitus exhibiting, 
therefore, also a smaller preapical spot than the specimens from Borneo. Perak, North East Sumatra. -— 
ephebus. ephebus subsp. nov. has a whitish-green instead of black cell of the forewings. Upper surface: the dark terminal 
margin of the hindwings is sometimes extinct and is interrupted in all the specimens. The reddish-brown sub¬ 
marginal band of the under surface of the hindwings also more effaced. Type from Birma in the British Museum. 
Similar specimens also in the Tring Museum. Discovered by myself as new for Tonkin near Chiem-Hoa in 
August. 
narcaea. 
posidonius 
E. narcaea is one of those Eriboea- species being divided into remarkably differentiated temporal 
forms, narcaea Hew. (Vol. I, p. 170, table 52 d), the name-type, was described by its author to originate from 
mandarinus. the Province of Chekiang. It flies from April till June, when it is replaced by mandarinus Fldr. (Vol. I., p. 170. 
thibetana. t. 52 d), a form of the rainy period being bordered by broad black with a bluish-green median area. — thibe- 
fana Oberth. (Vol. I., p. 170, t. 52 d) is a local form confined to the mountains of West China, furthermore a 
menedemus. very small form of the dry period, menedemus Oberth. from Tseku, in my collection. Range of the Chinese 
races from Shanghai and Ningpo to Mupin; the southern confines of the range not yet known. Rothschild 
and Jordan presume that narcaea might advance as far as Tonkin where it was indeed discovered in the last 
years. In the British Museum there is a large series and among them specimens of the extremest dry period- 
form from Shanghai. Most interesting are some other specimens denoted: North China. They bear minute 
submarginal dots of the upper surface of the hindwings and the most intensively reddish-yellow longitudinal 
band of the under surface. In the $ the blue subanal band extends as far as to the anterior median. This $ 
from North China excels also all the others in size and the under surface of the hindwings exhibits the most 
extensive yellow submarginal band. Sauter has recently taken the species on Formosa where it forms an 
megadhuta. insular race as megadhuta Fruhst. (135 a) which is allied to the fa. narcaea in the colours, but which exhibits 
just as distinctly separated yellowish submarginal spots of the forewings as the fa. mandarinus Fldr. Time 
of flight June at an elevation of about 1000 m. $ still unknown. 
E. posidonius Leech (Vol. I, p. 170, t. 52 d) occurs only in the mountains of West China. 
E. eudamippus, the most considerable species of the genus, inhabits the district from Nepal to Tenas¬ 
serim, Siam, Annam, and from Yunnan to the Liu-Iviu Islands, Formosa and Hainan. The upper surface resem¬ 
bles that of jormosanus (134 c), though the cell in the Indian races is light yellow during the dry period, being 
but slightly darkened in and $$ of the rainy period, while on the way towards east, it is gradually covered 
more with black scales. —- eudamippus Dbl. (134 d) of which we figure a $ of the rainy period, is of a much 
smaller size during the dry period, showing beneath no dark bordering at all of the yellow submarginal band 
of the hindwings, and besides an entirely light cell of the upper surface of the forewings. Common in the hot 
valleys of Sikkim; observed by Doherty in the Ivumaon-Himalaya; known also from Bhutan, the Naga 
and Khasia Hills. — jamblichus subsp. nov. $<$ from Tenasserim in my collection are smaller than of the 
dry period from Sikkim and do not show any blue bordering at all on the proximal part of the submarginal 
catenary band of the hindwings, which is copiously provided with very large pupils. To this race may belong 
2 of a winter-form which I discovered in January near Hom-Gom in South Annam. The $$ are extremely 
rare; Moore knew only two specimens which are interesting for having distally rounded tails instead of pointed 
ones as in the One $ from Sikkim, another from Assam of the Coll. Frhhstorfer have an entirely yellow 
cell of the forewing, being in a third $ from Assam, however, overdusted with blackish. •— nigrobasalis Lathy, 
a darkened eastern race, originates from Siam, being reported by Rothschild and Jordan also from the Shan 
States and extending to the east as far as Pnom-Penh in Cambodja. above with entirely blackened cell and 
a more extensive black apical area of the forewings than eudamippus from India and Tenasserim. Submarginal 
band of the hindwings decorated only with small white lunular spots. I collected it in numbers near Muok- 
Lek (Siam) during the dry period in January and February. The type in the Coll. Adams is also of the dry 
cdetis. period. Mr. Godfrey showed me also two specimens from Petjaburi to the south of Bangkok. — celetis subsp. 
nov. forms a regression to the name-type from India because of the dry period-form having again a yellow cell on 
the upper surface of the forewings, celetis, however, differs from eudamippus by a broader black submarginal 
band of the hindwings. Collected by myself in January in South Annam. Type in the Tring Museum. — 
cupidinius. cupidinius subsp. nov. agrees with celetis in the uncommonly broadened black longitudinal band on the upper 
surface of the hindwing, besides all the other black places are also more extensive compared to nigrobasalis. 
Yunnan, type in the Coll. Adams of the British Museum. —- rotlischildi Leech (Vol. I, p. 169, t. 52 c) is found 
jormosanus. in Central and West China. —- formosanus Rothsch. (134 c) has a lighter and more extensive yellowish median 
band, but smaller yellow submarginal spots of the forewings than the Chinese vicarious type. $ about one 
third larger than the with extensive blue and yellowish-green dusting in the anal angle of the upper sur¬ 
face of the hindwings and a very broad olive-green longitudinal band of the under surface of the forewings. 
eudamip¬ 
pus. 
jamblichus 
nicjrobasa- 
lis. 
