LASIOMORPHA; MELANERGON. By Dr. E. Strand. COTANA. By Dr. A. Seitz. 
419 
M. altemans Pag. (= fumosa Swh. <$) (37 d, $ as fumosa). The $ has an expanse of 60 mm; 
forewing black with a narrow white transverse band extending from l / 3 of the costal margin, at the begin¬ 
ning widened, to the distal margin and being once dentate along the veins. Hindwing in the ground black; in 
the white distal margin there are 8 black spots, the marginal band sending rays to the white fringes. 
Beneath as above. Body and extremities black, only the abdomen yellow. Palawan, Borneo. 
M. xanthomelas sp. nov. (37 d) from the Kina-Balu is a species easily recognizable from our figure; 
both wings yellow with a black base, in the forewing besides a row of black longitudinal streaks in the marginal 
area. (Rothschild in Nov. Zool. 24, p. 466 mentions as author Grunberg who, however, has never described 
the species and whose name is neither stated on the table having been published in the meantime). 
2. Genus: Lasiomorpha Jokey & Talbot. 
Allied with Melanothrix, but more robust and somewhat resembling a Lasiocampida. The first subcostal 
vein rises remote from the apex of the cell, opposite the origin of vein 2. The 3rd and 4th subcostals and 
vein 6 are equally distant from each other, 6 and 9 rising together from the upper angle of the cell. The upper 
discocellular only half as long as the lower, 6 and 5 at the base close together. In the hindwing the upper disco- 
cellular is oblique and longer than the middle one, the lower discocellular being twice as long as the upper and 
middle ones; 5 and 6 closer together than 6 and 7. The first palpal joint conical and porrect. 
L. noakesi Joicey & Talbot. <$. Deep purple brown or purple black, beneath lighter. Eorewing 
with a large, subhyaline, very feebly purple-scaled, band-like transverse area extending from vein 6 almost 
to the anal angle which it does not cpiite reach, being posteriorly gradually and feebly narrowed, at both its 
ends somewhat rounded and traversed by a brown line. The body above like the ground-colour of the wings, 
the palpi, anterior tibiae outside and femora lighter, the other legs, the thorax and abdomen beneath yellowish- 
brown. Length of forewing: 38 mm. Dutch New Guinea. 
L. meeki Rothsch. differs from L. noakesi by its chocolate colouring; the costa of the forewing is 
orange instead of black, the whitish, semi-hyaline area is not narrowed towards the anal angle and traversed 
by a strongly curved double band instead of a line, between the veins 1 and 2 a broad reddish streak extends 
from the base almost to the transverse band. Expanse of wings: 86 mm. Length of forewing: 38 mm. British 
New Guinea. 
3. Genus: Melaiiergon B.-Bak. 
differs from Cotana by vein 5 of the forewing being absent, 3 rising much farther from the angle of the cell 
in both wings; the sexes are not dimorphous. 
M. vidua Wkr. $. Wings blackish and subhyaline; body black. The is lighter, with a distinct 
postmedian transverse band, more densely scaled, frons tan-coloured instead of black, and the anal brush yellow 
instead of whitish. Dutch New Guinea. — proserpina B.-Bak. differs from vidua by its more intensely black 
colouring, the postmedian, semi-hyaline transverse band being broader and more distinctly marked. South 
East New Guinea. — fergussonis Rothsch. <$ deviates from that of vidua by the whole head, tegulae and patagia 
being orange, and in the forewing there is both an antemedian and postmedian transverse band; end of abdomen 
orange. Fergusson Island. — louisiadensis Rothsch. $ in the forewing with hardly any trace of a transverse 
band, and the anal brush is dark tan-colourecl. Louisiads. 
4. Genus: Cloiaiia Wkr. 
To this genus 27 forms are reckoned the size and shape of which reminds us somewhat of the palearctic 
Lasiocampa trifolii, being more or less brownish-yellow with rather monotonous hindwings, but showing a 
more intense sexual dimorphism. Quite different of course, compared to the Lasiocampidae, are the very small 
and feeble antennae which rest also in the $ as almost atrophous, thin threads on the broad, woolly head in 
which the eyes are hidden in the dense hair of the face. The wings are very broad with a short costal 
margin and long, mostly somewhat curved distal margin. Most peculiar are the veins. By the fusion of the veins 
forming the anterior and posterior cell-walls in the basal part of the forewing, the discal cell only begins 
several millimetres behind the base of the wing and is very short, but continued by an enormously long, lancet- 
shaped areola which, as it were, replaces the reduced cell of the forewing. A cell-end spot being in the $ invariably, 
in the $ often distinct is thereby very much removed proximad, being situate on the border of the basal thircj 
of the wing, whereby the members of the genus are at once recognized. The forms are very much alike, and 
altemans. 
xanthome¬ 
las 
noakesi. 
meeki. 
vidua. 
proserpina 
fergussonis 
louisiaden¬ 
sis 
