268 
NYCTEMERA. By Dr. A. Seitz. 
of the forewing being sometimes distally more straightly cut off (= inconstans Voll.), in which case mostly 
also the longitudinal wedge in the median fold of the forewing is narrowed. — This is also very much the case 
in the form from the Philippines, of which there are specimens before me from Camiguin, in which the white 
negritorum. wedge sometimes dies away altogether (= negritorum form, nov.) (29 c). — In Nias the greatest variation takes 
place, since there sometimes occur here also extremely pale specimens, coloured almost like cydippe or pollens, 
but besides also so very dark ones that the white of the forewing is confined to the narrowed oblique band and 
simplidor. is entirely absent in the basal part: = ab. simplicior ab. nov. (29 c). This form then looks quite similar to popiya 
Sivinh. from Java and to assimilis from Java, but there the tooth is absent with which the marginal band of 
the hindwing projects proximad on the lowest median vein. In some islands there fly stunted forms scarcely 
attaining half the size of the figured specimens and the species might be given at least twenty names, if we 
were to denominate all the transitions between the extreme forms mentioned here. 
propria. N. propria Sivinh. (29 d). This species, which is probably nothing else but a tripunctaria-iorm from the 
Philippines, as negritorum is the Philippine form of latistriga, is recognizable by the vast darkening of the body 
and hindwing, which may lead to a completely uniform colour. Such an extreme specimen I figure from Semper’s 
Joligo. collection and denominate it loligo form. nov. (29 c). Typical propria have white spots on all the wings, some¬ 
times more, sometimes less, sometimes brightly white, sometimes also darkened by a sepia-tint. On the Camotes 
from where the figured /o%o-specimen originates, these dark specimens occur more frequently; on the other 
Philippines the differently coloured specimens are found mixed; according to Pagenstecher also in Celebes. 
alternata. N. alternata Wkr. (29 c, d). Forewing in the basal part with 6 fine white lines from the base, of 
which that in the submedian fold is a little stronger. A chain of oblong white spots from the costal margin 
to the lower median vein. Hindwing white, with a broad brown costal margin and border. In some specimens 
the band of the forewing has died away or it is dusted so much that it is scarcely noticeable; I denominate this 
form showing also white fringes of the hindwing and an almost black abdomen with fine, white ringlets 
semibrun- (instead of the contrary), whilst the marginal band of the hindwing is proximally hardly dentate: semibrunnea 
nea. nom nov _ (29 d); I doubt, very much whether it really belongs to alternata, as Semper considered it to be. 
Sibulan, taken in January; the typical alternata is distributed in the Philippines. The species in its colouring 
and marking is very much like sontica Sivinh., but it is at once discernible by the antennal pinnae of the $ 
being more than twice as long and the much broader, obtuser wings. The whole exterior somewhat approxi¬ 
mates that of tripunctaria. 
trita. N. trita Wkr. (29 d, e) has also the long antennal pinnae in the Upper surface very dark, the 
oblique band of the forewing and the discal spot of the hindwing are only moderately lighter; the degree of 
leucostigma. this brightening varies individually. Java. - — leucostigma Snell, is still darker than trita itself, for instead of 
the dull white oblique band, the forewing only exhibits a small whitish costal-marginal spot extending above 
nubecula, only from the costa to the subcostal. — In nubecula Snell, this costal spot is also absent above, and only a 
dull, light cloud in the disc of the wing indicates the position of the discal band otherwise so very common 
in the Nyctemera. The last twx> forms were described as species of their own. They originate, as also the typical 
trita, from Java. 
lombokiana. N. lombokiana Sivinh. (29 d) is almost exactly like trita, but the discal light parts are traversed 
by a net of dark veins. Discovered by Fruhstorfer in Lombok. 
N. assimilis Voll. (= confusum Swinh.) (29 e) approximates the preceding, but it is at once recogni¬ 
zable by the broad white oblique band of the forewing and the white hindwing only broadly sooty-brown at 
the base and border. The width of the bands is most variable; from Java and Sumba. — anthracinum Voll. 
(de Haan i. 1.) is not before me; it likewise comes from Java and has a rather broad, white oblique band 
of the forewing, and white hindwings being brown at the base and border. The distal band of the hindwing 
mostly dying away before the anal angle in assimilis, extends to the anal angle in anthracinum. —- In battakorum 
form. nov. (29 e) from Sumatra, the type of which is in the Coll. Bang-Haas in Blasewitz, the marginal band 
of the hindwing is broader, the oblique band of the forewing, however, is narrower and quite straightly margined, 
and in distincta Wkr. from Java the band of the forewing is so intensely covered with brown that its course 
above can scarcely be noticed. — popiya Sivinh. (29 e) from Java, known to me from the figure, is likewise 
similar, the broad oblique band of the forewing being above quite dusted, beneath, however, distinct, and this 
form which may justly be described as a separate species, is approximated by distincth Wkr. which likewise 
comes from Java, but it differs from popiya by the much broader border of the hindwing. 
regularis. N. regularis Snell. (29 e). Whereas the forewing exhibits the oblique band similar to that of the 
preceding, being regular, smoothly margined, of a moderate width, the species is at once discernible by the 
narrow, uniform marginal band on the hindwing, growing narrower towards the anal angle and disappearing 
before the latter. In the £ this band often terminates in a black streak of individual thickness. From Sumatra 
and Borneo. 
assimilis. 
anthraci¬ 
num. 
battakorum. 
distincta. 
popiya. 
