X.—VHE GEOMETRIDAE. , 133 
genera are of Australian type, the fifth American and 
European. 
1. SAMANA. 
2, THEOXENA., 
3. ADEIXIS. 
4. DICHROMODES. 
5. HEPIRRHANTHIS. 
Genus 1—SAMANA, Walk. 
Face with cone of scales. Palpi very long, rough-scaled. 
Antennae in @ shortly ciliated. Fore-wings: 10 anastomosing 
with 9, 11 anastomosing with 10. Hind-wings 6 or 7 connate 
or stalked, 8 approximated to beyond middle of cell. 
An endemic genus containing two species. 
SAMANA FALCATELLA. 
(Samana falcatella, Walk., Cat. xxvii. 197; Panagra falcatella, 
Meyr., Trans. N.Z. Inst. xvi., 93; Samana falcatella, Meyr., 
Trans. N.Z. Inst. xvii., 65.) 
(Plate XLVIII., fig. 25 ¢@.) 
This very rare species has occurred in the North 
Island on the Poor Knights’ Islands, near Whangarei, on 
the Waitakerei Ranges, at Taihape and, in the South 
Island, at Nelson, Dunedin and Queenstown Lake Waka- 
tipu. 
The expansion of the wings is 1} inches. The fore-wings are 
very pale ochreous, speckled with grey; there is a very fine 
longitudinal black streak from a little beyond the base to con- 
siderably before the middle, slightly clouded above; an elongate 
discal dot; a very oblique slightly curved black streak from 
near the apex to the middle of the dorsum, edged with white 
towards the base, and clouded with brown towards the termen; 
the apex of the wing is very acute. The hind-wings are white, 
with a black discal dot. 
The perfect insect appears in February, and appar- 
ently frequents manuka serub (Leptospermum). 
SAMANA ACUTATA. 
(Samana acutata, Butl., Proce. Zool. Soc. Lond., 1877, 401; Meyr., 
TransaeN. Ze lOSts XViles Ol.) 
(Plate XV., fig. 39 9.) 
This very interesting species was rediscovered by Myr. 
J. W. Campbell at New Brighton, near Christchurch, who 
states that it is by no means rare in that locality at the 
proper season. 
The expansion of the wings is about 14 inches. It very 
closely resembles Samana falcatella from which it differs in the 
slightly shorter and straighter black basal streak; also in the 
oblique transverse streak which has a very acute angulation 
inwards at about one-third of its length before it reaches the 
dorsum. 
The perfect insect appears in September and October, 
occurring amongst gorse and manuka (Leptospermuwm), 
ete. It is also attracted by light. 
Described and figured from a specimen kindly lent to 
me by Mr. C. E. Clarke. 
Genus 2.—THEOXENA, Meyr. 
Face smooth. Palpi moderate, rough-scaled. Antennae in 
4 fasciculate-ciliated. Fore-wings: 10 anastomosing with 9, 11 
anastomosing with 10, sometimes also very shortly with 12. 
Hind-wings: 6 and 7 connate or stalked, 8 approximated to 
beyond middle of cell. 
An endemic genus containing a_ single species 
apparently of great rarity. 
THEOXENA SCISSARIA. 
(Panagra scissariad, Gn., Ent. Mo. Mag. v., 43; Theoxena scis- 
sariad, Meyr., Trans. N.Z. Inst. xvi., 56.) 
(Plate XV., fig. 38 @.) 
Many years ago this very delicate species occurred at 
Christchurch. It has also been found at Mount Grey, 
Ashley Gorge and Ida Valley, Central Otago. 
The expansion of the wings is 1 inch. All the wings are 
white. The fore-wings have a longitudinal, slightly curved black 
line, extending from a little beyond the base, almost as far as 
the termen below the apex; above this line there is a black dot 
at about one-third; the apex of the fore-wing is slightly hooked, 
and there is a row of minute black dots on the termen of both 
fore- and hind-wings. In the female the characteristic longi- 
tudinal black line is absent. 
The perfect insect appeared in January. According 
to Fereday it frequented the plains near Christchurch, 
and towards the foot of Mount Hutt. Mr. J. H. Lewis, 
who first re-discovered the species at Ida Valley, stated 
that it appeared in the late winter, his first specimen 
having been taken at light, whilst the snow was lying on 
the ground. In that locality none were seen after August.* 
Quite recently Mr. 8. Lindsay has taken the insect at 
Mount Grey and Ashley Gorge in December. 
Described and figured from a specimen in the Fereday 
collection. 
Genus 3.—ADEIXIS, Warr. 
Face obliquely prominent, with small cone of scales. Palpi 
moderately long, rough-scaled. Antennae in @ bipectinated. 
Fore-wings: 10 anastomosing with 9 above 7. MHind-wings: 6 
and 7 approximated, 8 approximated to beyond middle of cell. 
(Plate C., figs. 54, 55 neuration of Adcixis griseatda.) 
Represented by one species only. 
ADEIXIS GRISEHATA. 
(Dichromodes griseata, Huds., Trans. N.Z. Inst. xxxv., 244.) 
(Platewav, fe STs) 
This species has occurred at Waimarino, Raetihi, 
Ohakune and Kaitoke in the North Island, and at Seaward 
Moss and other coastal swamps near Invereargill in the 
South Island. It is also found on the Chatham Islands. 
The expansion of the wings is about ~ inch. The fore-wings 
are silvery-grey; there is a black discal dot; an irregular black- 
ish elongate-triangular patch reaching from the basal half of 
the dorsum almost to the apex of the wing; a much smaller, 
somewhat triangular, marking beyond this, followed by a dark 
terminal shading. The hind-wings are greyish-ochreous, darker 
on the base and termen. 
*Trans. N.Z. INSt) xo, 186, 

