12 
ARCINA; NEARCHA. By L. B. Prout. 
and at hindmargin, very slightly projecting outwards in middle; subterminal line pale, sinuous, generally with 
some irregular dark shading porximally. New Zealand, distributed, December to February. 
shvulnns- D. simulans Iluds. Distinguished by the yellowish brown tone, conspicuous on the hindwing. Said to 
bear a deceptive resemblance to Notoreas (Dasyuris) fulva Huds. but with the wings somewhat broader, the 
lines more indented, the fringes not barred. New Zealand. 
Ida. D. ida Huds. Forewing very pale greenish blue, speckled with black, the lines which bound the 
paler central area black, the postmedian conspicuous and jagged, followed by a very conspicuous pale och- 
reous line; cell-spot conspicuous; two ill-defined black bands in distal area. Hindwing reddish ochreous. 
speckled with black; a clear yellowish band beyond the postmedian line. — Larva suspected of feeding on 
lichen, very protective. Pupa in a cleft of rock, in a chamber formed of moss-dust and silk. Ida Valley, 
Central Otago. 
cynica. D. cynica Meyr. Dark grey, sprinkled with black and grey-whitish, the veins partly suffused with 
vellow-ochreous; lines formed of black irroration, obscurely edged on their reverse sides with whitish irroration; 
these markings most distinct near costa and hindmargin, the postmedian forming a moderate bidentate promi¬ 
nence in the middle; subterminal obsolescent. Differs from niger in the form of the lines. Lyttelton, New 
Zealand, in November. 
molybdaria. D. niolybdaria Gnen. (= carbonata Walk.). (1 d). This species and the two which follow form a 
separate section of the genus, the having the hindtibia swollen, compressed laterally, the hindtarsus shortened. 
The typical form of niolybdaria is of a smooth leaden-grey tone with a moderate black-grey central band and 
black terminal dots, sometimes also with indistinct pale subterminal lunules, filled-in with slight dark spots on 
estigmaria. their proximal side. — ah. estigmaria Walk, has the band obsolete, its boundary-lines very fine and more or 
less strongly interrupted or obsolescent, thickened antemedian and postmedian spots on the costa and an irre- 
coslinofala. gular postmedian mark in the centre remaining conspicuous. — ab. costinotata Walk. (= schistacearia Walk.) 
is a more extreme aberration with only the costal spots remaining and even these occasionally (as in Walker’s 
type of schistacearia) quite rudimentary, molybdaria is only known to me from New South Wales and Moreton 
Bay. Common, October to December and in February. 
orthogram ■ Do orthograrnma Lower is said to differ from the preceding in having the antennal pectinations only 
ll " 1 ' about half as long, the lines and a cell-spot dark fuscous, the antemedian at one-third, slightly sinuate near 
costa, the postmedian almost straight, somewhat punctiform, from three-fourths of costa to two-thirds hindmargin- 
edged distally by an equal width of whitish; subterminal indistinct, strongly waved throughout, dark-shaded 
proximally. Duaringa, Queensland, taken in November. „Superficially not unlike a large ischnota. u 
ischnota. D. ischnota Meyr. (1 d). Smaller than molybdaria, the central area narrow, not or scarcely darkened, 
bordered on each side by a fine black, then by a white line; antemedian sharply bent near costa; a distinct 
cell-dot present in the central area; a slightly sinuous whitish subterminal line. Described from West Australia 
but also occurs in Queensland. October. 
9. Genus: Arcliia Walk. 
Distinguished by its strong frontal protuberance, whence Turner — unacquainted with Walker’s 
type — described the genus under the name of Prorocrania. Antenna in $ bipectinate. Legs long and slender. 
Both wings elongate anteriorly. Venation not very different from that of Dichromodes, Adeixis etc., but with 
the 1st subcostal vein anastomosing with the second. Only one species. 
fulgorigera. A. fulgorigera Walk. (= argyritis Turn.) (1 e). A very distinct species, brown with irregular light pat¬ 
ches and black lines in proximal part, a strikingly zigzag silvery line from beyond two-thirds of costa to well 
before middle of hindmargin and elongate silvery dashes at distal margin. West Australia, apparently scarce. 
Occurs in August. 
10. Genus: Jfearclia Meyr. 
Face with projecting cone of scales. Palpus often long. Antenna in bipectinate. Forewing with 
the 2nd subcostal anastomosing both with the 1st and with the 3rd—4th. Hindwing with costal closely appro¬ 
ximated to subcostal almost to the end of the cell, cell rather short, 2nd subcostal stalked with 1st radial. 
Sexual dimorphism usually somewhat pronounced; the $ commonly with tufts of hair on the hindwing beneath. 
Another exclusively Australian genus. 
