NATAXA; ANTHELA. By Dr. E. Strand. 
365 
Ch. collesi G. B. Gray (= laplacei Feisth., affabricata Wallgr.) (46 e). W ings black. Forewing near collexi. 
the apex with two hyaline spots and with grey and ochreous undulate transverse bands. Hindwing with a 
whitish median band and an undulate ochreous band near the distal margin, parallel to it. Antennae and palpi of 
d black, its head ochreous; thorax and abdomen black, in some parts brownish and ochreous. (Original diagnose), 
Expanse of wings: 150, $ 185 mm. $ forewing brown with a red-brown median band somewhat undulately 
edged with black and enclosing a round white spot. 3 narrow light postmedian bands, and a black narrow angular 
antemedian band. Hindwing with a darker basal area and 3 light postmedian bands or lines. In the the 
hindwing is darker with a straight narrow median band and an intensely yellow postmedian transverse band. 
Larva and cocoon covered with stiff bristles and fine sharp hairs which, on being touched, stick to the skin 
and cause inflammations; the species is therefore known to cause great destructions, particularly because it 
may occur in masses. — Larva on Eucalyptus corymbosa and perhaps another species of Eucalyptus, as much 
as 147 mm long thick, satiny brown, each segment with 8 yellow tubercular spots, the second and third segments 
besides with 2 more spots, the first and last segments with a yellow cross-band, two yellow longitudinal bands 
between the legs of all the segments, the bristles being brown. The young larva is light reddish with grey spots.-— 
Cocoon elliptical, at both its ends extracted and very tapering, formed of a strong solid web. hairy, in the ) 
brownish, in the J whitish. Pupae 79% mm long, red-brown, at the last segment bristly. It particularly flies 
in July. Near Sydney and Darling Point common. 
Ch. chalepteryx Fldr. (= felderi Trnr.) (46 f). <§ forewing light reddish-brown with two narrow, black, chalepteryx. 
oblique, almost straight transverse bands, one of which borders on the basal area, being at the hind-margin 
6 mm. at the costal margin 8 mm distant from the base of the wing; in the costal area, midway between this 
band and the base of the wing there is a black transverse stripe. The second band terminates into the apex 
of the wing and in the hindmargin not far from the anal angle, being almost straight and in front with a light 
centre. In the middle and at the end of the cell there is one ring-spot each. Hindwing in the basal half red. 
in the other half brown, the two halves separated by a feeble, indistinct black band. In the marginal area there 
is a broad, jet-black transverse band narrowly edged with light and distally defined in a zigzag shape. Expanse 
of wings: 85 mm. At first stated from the Cape of Good Hope, but in fact Australian, and before me from 
Queensland. 
46. Genus: Nataxa Whr. 
Palpi hairy and very short. Antennae long-combed, not longer than the thorax. Abdomen not or but 
little projecting beyond the anal angle. Legs rather thin; hind tibiae with two very small apical spurs. Wings 
with an almost straight costal margin, a rounded apex and very oblique distal margin; the first and second of 
the lower veins at the base close together, the third is much more than twice as distant from the fourth a from 
the second. — In the forewing vein 2 rises in or within the centre of the cell. 3 from 2 and 4 equally far away. 
4 and 5 from the angle of the cell, but unmistakably separated, the discocellular is rather much curved or broken, 
6 from the anterior angle, where also 7 rises, unmistakably separated from 6, 8 from the centre of 7 and 
terminating into the costal margin. 7 into the distal margin, 10 from the anterior edge of the cell. 9 rising from 
the apex of the remarkably long areola, the final vein of which extends quite transversely between 8 and 9 
and very obliquely between 9 and 10. 
N. flavescens Wkr. The d is in the form flavifascia Whr. ferruginous reddish. beneath lighter. Abdomen flavescens. 
blackish-brown with a ferruginous reddish apex. Wings blackish-brown, towards the margin red. with a narrow, ^avifascm. 
oblique, slightly undulate yellow band which is expanded towards the costal margin of the forewing. Hindwing 
beneath uni-coloured red. except the yellow band. Expanse of wings: 24% mm. From Tasmania. — The 
typical form, from Australia, is lighter, more yellowish and lighter brown. ochrocephala Fldr. (57 a). The ochrocepha- 
$ has in the costal area of the forewing two large, whitish spots situate close together and replacing the yellow 
band in the other forms. Abdomen with a transverse line and a longitudinal line. Ground-colour dark as in 
flavifascia. ft may only be the ordinary female form of the species. 
N. rubida Whr. $ deep red. Head and prothorax dark ochreous. Abdomen beneath and legs golden rubida. 
red. Antennae black. Fringes golden yellow, and forewing with a similar spot on the costal margin, but on 
the outside of the centre without the median band of A 7 , flavescens ; its distal margin is almost straight and 
very oblique. Hindwing broad with a projecting anal angle. Expanse of wings; 33 mm. Australia. 
47. Genus: Antliela Wkr. (Darala Whr.). 
Original diagnose: body thick, very hairy. Palpi hairy, porrect, scarcely extending beyond the head 
the third joint small. Antennae almost pectinate. Legs bare, very thin, hind tibiae with two long apical spurs. 
Abdomen not reaching to the anal angle. Wings rather broad. In the forewing the second of the lower veins 
