Publ. 9. III. 1914. 
ERIBOEA. By H. Frithstorfer. 
721 
Bali. Type in the Coll. Dr. Martin at Diessen. Occurring beside Eriboea hebe in the island, very rare. — hera- heracles. 
cles Bob., a melanotic insular form, is met in the northern and southern parts of Borneo. deviating from 
moori by increased black submarginal spotting on the upper surface of the hindwings as well as on the distal 
boundary-band of the green median area of the under surface. The $ having hitherto not yet been described, 
from North Borneo, is in the Coll. Frithstorfer and differs considerably from moori moori- $ by large coniform 
resp. wedge-shaped black marginal spots of the hindwings, enclosing sharp white little streaks. On the 
Natuna Islands a still more darkened form occurs, being, however, missing in my collection. 
E. hebe. A species with many forms, inhabiting the whole of Macromalayana and parts of Micro- 
malayana. hebe is especially beneath easily distinguishable from moori by the greenish median band being 
very much narrowed especially on the hindwings. The upper surface is characterized by the uniform black 
marginal zone of the hindwings, being never interrupted by yellow or greenish median marginal decorations 
as in moori. —■ chersonesus Fruhst., the continental form, hitherto known only from Perak, deviates from hebe chersonesus. 
hebe by an increased black marginal area on the upper surface of the hindwings. Rare in the collections; known 
from Perak, Wellesly and the Island of Penang. —- plautus Fruhst. (134 b, 137 a where it is denoted as falculus) plautus. 
forms one of the most striking examples of insular isolation; for in spite of the short distance from the continent, 
it is in the Island of Singapore, the home of the race, where the most differentiated vicarious type of the total 
species lias developed. $ as well as $ exhibit the most extensive and most densely closed black margin of the 
hindwings. 'plautus will probably be yet discovered also in the islands of the Riouw Archipelago. — gany- ganymedes. 
medes Stgr. resembles plautus, though the terminal margin of the hindwings, especially in the $, is somewhat 
more broken up, wdiereby it appears proximally distinctly dentate. The green area of the under surface of 
the hindwings narrower than in plautus. North and South Borneo. — hebe Btlr. (134 b) denotes the Sumatra hebe. 
race characterized by the retrogression of the black submarginal spotting in both the sexes, hebe seems to be 
rather common in West Sumatra, and $$ from Padang Pancljang surpass somewhat in size those from Deli in 
the north of the island. $ very rare, not discovered by Dr. Martin in spite of having been most successfully 
collecting for 13 years. — fallacides Fruhst. (134 b) of which also only <$<$ have been found hitherto, appro- fallacides. 
ximates rather the Javanese than the Sumatran vicarious type and is the most abundantly scaled in bluish- 
green within the submarginal lunae of the hindwings. The $ which is known to me by the Adams collection 
of the British Museum, has more strongly developed marginal spots of the hindwings and exhibits a larger 
subapical spot of the forewings. Island of Nias, both the sexes rare. — fallax Bob. described according to the fallax. 
specimens I collected in Java, occurs in West Java at elevations of up to 800 m. The specimens are smaller 
than those from West Sumatra and Borneo, but nevertheless they exhibit a more prominent greenish prea- 
pical spot of the forewings. The hindwings are uniformly broad bordered in black with distinct, small white 
intranerval streaks. The rare $ differs from the ^ chiefly only by the larger transcellular spot of the forewings. 
Both my from East Java, however, have this spot again greatly reduced and are, furthermore, recognizable 
by the more reduced median band of the under surface of the hindwings. The butterflies are met in wet places 
near crossings of rivers. — baweanicus Fruhst. distinctly shows that Bawean is inhabited by a subspecies of baweanicus. 
hebe which may be separated from the Javanese fallax. First of all the greenish subapical spot of the forewings 
is much larger than in any other race of hebe, whereby it approches hebe kangeanus Fruhst., the subapical spot 
of which is also very much develojied, though beaten in extent by baweanicus. The black distal marginal borde¬ 
ring of the upper surface of the hindwings is much narrower than in fallax, somewhat narrower than in kange- 
anus. The greenish median bands of the under surface of the wings appear broader than in equally large speci¬ 
mens from Java, their brown border fainter, so that baweanicus represents one of the lightest forms of hebe. 
Bawean, July till September. — kangeanus Fruhst. of a well defined local form from the Island of Kangean kangeanns. 
form about the medium between hebe fallax Bob. from Java and hebe lombokianus Fruhst. from Lombok. In 
common with the Javanese they have a much larger green apical spot of the forewings and the somewhat nar¬ 
rower black bordering of the forewings than the Lombok-d' ( J. Margin of hindwings of kangeanus is, however, 
narrower than in hebe from Java and Lombok. The under surface of the hindwing differs from the from 
Java and still more so from Lombok by the narrower, hardly bent-up reddish-brown submarginal spots bor¬ 
dering distally the green median band, and being distinctly crescentiform in the two said local races. Island 
of Kangean. — nikias subsp. nov. is inferior to fallax in size, having therefore also a smaller apical spot on nikias. 
the forewing and more delicate white little streaks in the black marginal zone of the hindwing, nikias is men¬ 
tioned already by Rothschild and Jordan who state that the are the most nearly allied to the darkest 
Java-(Jd\ whereas they approximate the Lombok-form beneath. According to specimens of Staixdingers collec¬ 
tion in the Berlin Museum and of the Coll. Martin, the distal margin of the upper surface of the hindwings 
is considerably broader than in fallax, and the apical spot of the forewings smaller than in East Javanese <$<$. 
Island of Bali, very rare. —- lombokianus Fruhst. bears above on both wings a more extensive black marginal lombokia- 
area and beneath a considerably narrower green median area appearing distally bordered more brightly and ru,s ' 
extensively in brown than in the allied races of hebe. Lombok up to an altitude of about 800 m, only known 
collected by Doherty and myself in May and June 1896 on Lombok. — arnoldi Bothsch. exhibits a broader arnoldi. 
green band of the under surface of the hindwings than the Javanese fallax. Island of Sumba, very rare, only 
1 in the Coll. Pagenstecher. 
IX 
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