787 
DICALLANEURA. By H. Fruhstorfer. 
rather conformably to occur on the whole northern coast of New Guinea. Hagen knew only one couple 
from Stefansort; before me are 7 and 3 $$ from the surroundings of the Astrolabe Bay. — diantha dianlhu. 
Sm. (= milnei Fruhst .) occupies low districts of South British New Guinea. $ separable from arfakensis 
by a darker ground-colour of the under surface of the hindwings resembling ribbei. In the Tring Museum 
there are also $$ from the Kumusi River, flying in August and September. — ovada subsp. nov. is the ovada. 
race deviating the most from the general habitus of the ribbei, from the Eilanden River of the southern 
part of Dutch New Guinea. larger than arfakensis-^. Under surface still more intensely brown than ribbei 
from Aru. The light yellow stripes and bands of the sister-races are here ochreous. The yellow spots of the 
forewings are smaller. Flying in December, discovered in 1910 by Meek. Type in the Tring Museum. 
D. pulchra resembles D. ribbei above, but it exhibits a whitish-blue oblique band of the forewing, 
differing in width according to the insular habitat. This band extends from the subcostal to the middle 
median. $ above, as a rule, somewhat darker than the $ of D. ribbei. The under surface is figured 139 b 
and differs by a yellow subanal band of the hindwing being neither undulate nor interrupted, but simply 
convex, from D. ribbei as well as from D. decorata and D. kirschi. It is distributed from Mysol across the is¬ 
lands in the Geelvink Bay as far as the northern parts of Dutch New Guinea. — pulchra Guer. (139 b) inhabits pulchra. 
the Island of Waigiu where the species is very rare. Waterstradt who collected for months in the island 
captured only three $2. — udiyana subsp. nov. was discovered by Doherty in the Humboldt Bay. The udiyana. 
upper suiface of the hindwings is darker than in the specimens from Waigiu, with a smoky-brown tinge. — 
vasatha subsp. nov. lies before me from Kapaur, South Dutch New Guinea, where it was also discovered vamlha. 
by Doherty in December 1896. $ differs beneath from the $ of pulchra by smaller white dots of the 
forewings and, in both sexes, by the obsolete most central one of the three small creseentiform spots tra¬ 
versing the cell. The submarginal silvery-white small stripes are likewise in the decrease. — sigrya subsp. niyrya. 
nov. occurs in Mysol. Of a smaller habitus than the nomenelatural type from Waigiu; here also the white 
oblique band of the forewing begins to dissolve posteriorly and is already considerably narrowed. $ much 
darker than pulchra-^., but without the smoky-brown tinge of the $ from the Humboldt Bay. 
D. kirschi, a rare species originally described from the Aru Islands, was discovered in British New 
Guinea and the southern Dutch New Guinea in the last decade, after Doherty - had discovered it in Hum¬ 
boldt Bay already in 1892. The homogeneousness of the single forms with kirschi, however, was not recognized 
by former authors. — kirschi Rob. is very sparse in Aru and is determined by me from the figure of its kirschi. 
author who had obtained only one $. The upper surface approximates that of pulchra -2, and the under 
surface is characterized by the sharply dentated subanal band of the hindwing being whitish grey in the <$, 
whitish-yellow in the £. The sexes are rather similar to each other as far as I am able to judge from the 
material before me from the Tring Museum. The $ is smaller, intensely red-brown; the $ like that of D. 
pulchra or D. decorata, light ochre-or orange-yellow. — didica. subsp. nov. (140d) was recently discovered didica. 
by Meek on the Eilanden River and Oetakwa River both of which originate from the Snow-Mountains. It 
flies from October to December, from the plains up to about 1100 m. $ with almost white spots and bands 
of the under surface. $ with a dim median creseentiform spot in the cell of the hindwing. Type in the 
Coll. Fruhstorfer. — fulgurata Sm. (140 e) has a being above somewhat lighter red-brown than we observe fulgurata. 
it in didica. Under surface of the forewings lighter red-brown with smaller white and yellowish spots. The 
middle cellular spot of the hindwing again distinctly prominent. The greyish-white covering at the medians 
of the hindwings more extensive, more intense than in didica. $ beneath duller. Type from Milne Bay, 
also from the Aroa River, British New Guinea, from an altitude of 4 to 5000 ft., flying in May, Tring 
Museum. -— semirufa Sm., according to the author’s coloured description, presumably lias the darkest upper semirufa. 
surface. The under surface exhibits more extensive black median areas of the forewings and resembles the 
most fulgurata by the distinct grey stripes along the medians of the hindwings. Humboldt-Bay. We may 
for certain expect another kirschi- race from German New Guinea. 
D. decorata, the best-known and most common species of the genus, is at the same time the most 
widely distributed, from the Aru Islands in the west to the small satellite islands in the east of New Guinea. 
It is at the same time that species which dissolves the most easily into areal forms, and, strictly speaking, 
it would even be possible to separate eight races of the chief island. £ either with a well-defined, light red¬ 
dish-yellow oblique band of the forewing, or, according to the locality, with a graduating, more or less dis¬ 
tinct, red-brown brightening on the forewings being otherwise blackish, towards the apex, however, deep 
black. $ of all the species dealt Avith so far above the lightest yellow, beneath immediately recognizable by 
the subanal band of the hindwings being dissolved into five single spots or small stripes; at the same time 
the yellow median spots of the forewings are the largest and the most strongly developed. — decorata Hew., decorata. 
the lightest race of the collective species, exhibits the broadest dull reddish-yellow band of the foreAving 
and also on the hindwings a yellowish zone from.the costal area to the anterior median. Aru Islands, rare. 
— sangha subsp. nov. occurs in Mysol. The transverse band of the foreAving considerably darkened, also sanyha. 
the under surface of the hindwings more intensely red-brown, the outermost yelloAV anteterminal band nar¬ 
rower. T 3 T pe in the Tring-Museum. — adulatrix Fruhst. exhibits particularly in the £ beneath more pro- aduIatrU-. 
