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ERECHTHIAS FULGURITELLA. 
(Cerostoma fulguritella, Walk., Cat. xxvili., 548.) 
(Plate XXXVI., fig. 20 9.) 
This rather obscurely-marked species has occurred at 
Wellington, Christchurch, Dunedin, Lake Wakatipu, and 
Invereargill, but is rarely met with. 
The expansion of the wings varies from about 4 to & inch. 
The fore-wings are pale brownish-ochreous with the costal area 
more or less clouded with darker brown; there are several 
cloudy blackish streaks in the disc, extending from the base to 
the apex, the lowest of these emitting three blunt projections 
towards the dorsum; the dorsal area is very pale brownish- 
ochreous, often almost white; there is a black spot at the apex. 
The hind-wings are very pale greyish-brown, darker towards the 
apex. 
The perfect insect appears from November till Febru- 
ary and frequents forest or serub. 
ERECHTHIAS MACROZYGA. 
(Erechthias macrozyga, Meyr., Trans. N.Z. Inst., xlviii., 419.) 
(Plateexcuv iL, fie. eo) 
This very handsome dark-coloured species was discoy- 
ered by Mr. Philpott near Invercargill. 
The expansion of the wings is 4 inch. The fore-wings are 
blackish-brown with coppery reflections; there is a broad irre- 
gular white streak along the dorswm and termen; several very 
obscure whitish marks on the costa and a round coppery-black 
marx at the apex. The hind-wings are greyish-black with very 
strong purple reflections. 
The perfect inseet appears in February, and is found 
in lowland forests. 
Genus 7—HECTACMA, Meyr. 
Head rough. Basal joint of antennae elongate. Labial 
palpi moderately long, terminal joint enlarged with scales pro- 
jecting at apex, longer than second. Maxillary palpi long, folded. 
Fore-wings with all veins present, 7 separate. Hind-wings ovate- 
lanceolate; 5 and 6 stalked, 6 to apex or costa (chionodira). 
(Plate K., figs. 7, 8, 9. Neuration and head of Hectacma chas- 
matias). 
We have five species belonging to this interesting en- 
demie genus. Three are restricted to the North Island; 
one to the Chatham Islands, and one occurs in both islands. 
HECTACMA CHIONODIRA. 
(Erechthias chionodira, Meyr., Proc. Linn. Soc. N.S.W., 1880, 
268.) 
(Plate XXXVI., fig. 28 9.) 
This very interesting and distinctly-marked species is 
fairly common in the Wellington District, and has also 
oeeurred at Auckland and at Taranaki. 
The expansion of the wings is about 4 inch. The fore- 
wings are snow-white with @ very broad rich brown band along 
the dorsum and termen, being broadest on the termen where its 
inner edge is distinctly angulated; there is sometimes a minute 
brown discal dot above the middle. The hind-wings are white 
with the apical cilia tipped with brown. 
This species varies considerably in size. 
The perfect insect appears from November till Febru- 
ary, and frequents forest. It is usually found resting on 
tree-trunks or fences where, notwithstanding its strongly- 
contrasted colouring, it is very inconspicuous. Whilst 

XVII—THE TINEIDAE. 
thus engaged the wings are tightly closed; the antennae 
placed backwards along the top of the wings and the legs 
held close to the insect and almost entirely covered by the 
wings. 
HECTACMA STILBELLA. 
(Argyresthia stilbella, Dbld., Dieff. New Zeal. ii., 289; Walk., 
Cat. xxx. 849; Hrechthias stilbella, Meyr., Proc. Linn. Soc. 
N.S.W. 1880, 265.) 
(Plate XXXVI., fig. 18 9.) 
This very clearly-marked species is common in the 
neighbourhood of Wellington and has also occurred at 
Auckland and Nelson. 
The expansion of the wings is slightly under # inch. The 
fore-wings are cream-coloured, faintly tinged with ochreous on 
the dorsum; there is a broad deep bronzy-black stripe from the 
base to the apex, running parallel with the dorsum; a very fine 
curved line from the costa et the base, joining the central stripe 
at about #; another very fine line from the costa at about # 
almost reaching the central stripe; a fine line along the costal 
edge from # to the apex and a black spot at the apex. The 
hind-wings are pale grey. 
Although superficially similar to Erechthias chasma- 
teas this species is quite distinet and its markings are very 
differently arranged. 
The perfect insect appears from November till March, 
and frequents forest or scrub. It is usually taken resting 
on fences or tree-trunks and is often found in gardens. 
HECTACMA CHASMATIAS. 
(Hrechthias chasmatias, Meyr., Proc. Linn. Soc. N.S.W., 1880, 
264.) 
(Plate XXXVL., fig. 17 @.) 
This very neatly-marked species is fairly common in 
the neighbourhood of Wellington, and has also occurred, at 
Whangarei, Auckland and Ohakune. 
The expansion of the wings is barely ? inch. The fore- 
wings are rather elongate with the costa very strongly arched 
near the apex and the termen oblique; pale whitish-ochreous 
with dark brown markings; there is a longitudinal band on the 
dorsum from the base to about #, produced as a fine point into 
the disc; a very fine straight line extending from the costa at 
the base to the apex; a very fine apical streak and dot and an 
elongate tornal blotch. The hind-wings are white, very faintly 
tinged with greyish-ochreous. 
The perfect insect appears from January till March, 
and frequents forest, where it may often be dislodged 
from the trunks of small trees by beating. Worn speci- 
mens are sometimes taken as late as the middle of April. 
The appearance of this insect when at rest is very re- 
markable and achieves, in the most perfect manner, the 
effect of ‘‘ reversal.’’ 
HECTACMA CRYPSIMIMA. 
(Hectacma crypsimima, Meyr., Trans, N.Z. Inst., lii., 31.) 
(Plate SxbVil ieee Lae) 
This rather obscurely - marked little species has 
occurred at Days Bay, Wellington Harbour. 
The expansion of the wings is barely % inch. The fore- 
wings are elongate, narrow with the apex rounded and slightly 
produced; dull blackish-brown with black markings and numer- 
ous dull bronzgy-brick-red scales in the disc, especially beyond the 
