LETO. By R. Peitzner f and M. Gaede. 
835 
shorter owing to the absence of the basal end, hindwing darker. In both sexes the two bands of the forewing 
may be connected by a bar or not. 70—110 mm. Victoria. 
A. magnificus Luc. (100 b). The <L resembles leucochiton (75 a) by the broad black margins of the white magnificus. 
bands. Body and forewing greyish-brown. Both the bands broad, spindle-shaped. A white triangular spot 
at the base. Hindwing dull brown, brownish ochreous at the base. body and forewing smoky grey. The 
bands dull grey, less thickly margined with black, somewhat more dentate. Hindwing dark grey, brownish 
ochreous at the base. 125—180 mm. New South Wales, Victoria. 
A. hydrographus Fldr. (77 c). Body pale brown, only the base of the abdomen pink. Forewing brown, hydrogra- 
the distal and inner margins broadly lighter brown, the costal margin only lighter near the apex. Besides phus. 
a few scrolled lines. The two bands distinct, not divided, narrower than in magnificus. Hindwing pale brown, 
lighter at the costal margin, pink in the basal area. ^ similar to the (J. Both wings at the bases and the 
base of the abdomen somewhat white. The latter, however, is not to be seen in Felder’s figure. 140 to 
195 mm. West Australia. 
A. latipermis Tincl. (100 d). The distal margin of the forewing is more oblique in the type than in latipennis. 
the other species. Body and for'ewing uniformly pale brown, in which it differs from hydrographus -<$. The 
bands finely edged with brown, similarly shaped as in hydrographus. Traces of some scrolls at the inner 
margin. Hindwing pale brown, pink hair at the base. The $ has a greyish-brown body. Forewing dark 
brown around the radial band, the rest dull brown with many curled lines. The two bands like those of 
the (J, but more irregular. A thin line connecting the two bands may occur, similar as in leucochiton , but 
narrower. On the whole, one may say that latipennis is a small form of hydrographus. 75—150 mm. Victoria, 
Tasmania. 
A. barcas Pf. sjn n. (75 d, e). forewing fawn-coloured, a broad silvery longitudinal streak bordered barcas. 
with dark divides the wing from the base into the apex, interrupted in the middle, then expanded. Hind¬ 
wing lighter, base with a reddish tint, also the anterior half of the abdomen. Thorax and head dark fawn- 
coloured. $ more uniform, darker dull chocolate brown; silvery stripes relatively more indistinct. This 
form is characterized by the absence of the hieroglyphical marks in the $ and $. 110—170 mm. Sydney. 
A. albofasciatus Swh. (100 c). Abdomen and forewing brown, with a reddish tint, forewing with the albofasda- 
usual scrolled marks, a broad white longitudinal stripe from the base through the centre of the wing to ! / 5 of ius - 
the distal margin where it bends upwards to the apex, the sides of the stripe being more or less torn; right 
below in the <$ 3 small spots, also a thin white submarginal stripe extending around to the apex. Hindwing 
and abdomen grey, covered with white hair at the base. Separated from all the other species by the fine 
marginal line of the fore wing. The $ is similar, the scrolled lines on the forewing more distinct. Legs greyish- 
brown, reddish below. $ and $ 95—155 mm. West Australia (Swan River). 
The two following species deviate a little. 
A. fulvoniarginatus Tind. Thorax blackish-brown, abdomen grey. Forewing dark grey with some- fulvomargi- 
what diaphanous white spots. Costal margin finely ochreous brown. A row of black spots in the centre of the natus. 
wing, and a row before the margin. Hindwing broadly pale ochreous brown at the costal margin, marginal 
area grey. The marking in the $ is paler and very indistinct. Hindwing pale grey. 40—60 mm. West 
Australia. 
A. aphenges Trnr. Thorax chocolate brown, abdomen greyish-brown. Forewing chocolate brown with aphenges. 
numerous white lunae and streaks. Hindwing greyish-brown. $ similar, but the white lunae and streaks 
double. 55—80 mm. New South Wales. 
7. Genus: I^eto Won. 
Antennae of plain. Palpi moderately large, stretched. Part of the surface of the hindwing covered 
with long dense hair. Two species in the Australian region, one in Africa. Cf. Vol. XIV, p. 555. 
L. stacyi Scott (= staceyi Frog.) (78 a). Forewing greenish ochreous, with two whitish transverse stacyi. 
bands from the costa towards the inner margin. Costal areas with red-brown spots and whitish rings. Anal- 
marginal area with red-brown and white lines, especially characterized by an irregular lighter-edged spot, 
resembling the ocelli of the Satyridae, with a dark narrow crescentiform pupil, distinctly projecting above the 
surface of the wing. Hindwing deep brownish reddish orange. — siouosa Oliff is darker, of a more greenish tinge, sinuosa. 
more brightly marked. This largest species of all the Hepialidae attains, according to Meyrick, an expanse of 175 
to 220 mm, both the <$ and $, but the $ in the Berlin Museum (78 b as stacyi -$) belonging to the form sinuosa 
has an expanse of 240 mm. Regarding the expanse, stacyi is one of the largest lepidoptera known; it seems 
as if it were an antediluvian insect. Its patria is New South Wales (New Castle and Mammy River). Frogatt 
writes about its habits: the larva lives in trunks of the “grey green” (Eucalyptus resinifera and tereticornis). 
It never bores upwards and closes the hole with a light silky web covered with pieces of bark; it makes 
a channel in the centre of the trunk, in which it descends to the roots. Metamorphosis in December, after 
