354 
HORISME. By L. B. Prout. 
arenosus. 
gobiata. 
unduligera. 
rivularis. 
fa sc iota. 
anguligera. 
bipartite.. 
chinensis. 
plurilineata. 
nigrovittata. 
cxors. 
impigra 
H. arenosus Howes ( — arenosa Meyr.) (37 k). Unlike the other three members of its group, this seems 
to be very constant. On the whole smaller than gobiata , in any case easily separable from the palest, weakest- 
marked forms of the latter by the straighter postmedian line and by the shape of the hinclwing. Titahi Bay 
(Cook Strait); also near Oamaru. 
H. gobiata Feld. ( — simulans Btlr.) (37 k). Excessively variable. Hindwing, especially in the <$, with 
the distal margin a little more rounded and appreciably more crenulate than in arenosus , intermediate towards 
that of anguligera ; forewing with the streak from behind the apex to the postmedian line generally blacker, 
the cell-dot sometimes minute, sometimes quite large. New Zealand: common and widely distributed in South 
Island, rarer in North Island. Larva on Coprosma areolata; moderately stout, tapering, rugose, with very large 
humps on the 4th and 5th abdominals, general coloration pale brownish green; it is very sluggish and is believed 
to hibernate. Felder's type form (not localized) is shown in our figure; it is pale, with the incomplete blackish 
lines and apical dash well developed. — ab. unduligera Bull, is a little browner, with the lines in part (or at 
least the antemedian) bright brown rather than blackish; Butler's type, from Otago, has moreover a large 
cell-spot and if the name is to be utilized at all it might be made to cover all the forms which show this pecu¬ 
liarity. — ab. rivularis Btlr., also described from Otago, lacks the broken blackish lines and merely presents 
a series of ripplings of almost equal intensity. — ab. fasciata nov., with the median area strongly darkened, is 
more interesting than either of the aberrations which were known to Bittler. Type from Niagara (N. Z.) in my 
collection. A similar form can occur with a browner ground-colour. 
H. anguligera Bull. (37 k). On an average larger than gobiata , but very variable in size; both wings 
with termen more dentate, particularly as regards the 3rd radial of the hindwing. Coloration on the whole 
browner, sometimes with a tinge of chocolate or of reddish; forewing beneath with a strong, or at the least 
a distinct, rosy suffusion anteriorly, its posterior part from fold or even from median vein generally whitish 
and feebly marked (in gobiata only so behind the 2nd submedian). Abdomen and hindwing with a darker sub- 
basal belt than in gobiata ; forewing with the compound subbasal marking nearly always weaker, scarcely so 
oblique, antemedian from hindmargin to middle without sinuosities, cell-dot minute, postmedian with a strong 
central bend outward, an inward curve in front thereof, subterminal generally with a stronger bandlike shade 
proximally than in gobiata , hindwing beneath more banded distally. Few of the distinctions are constant and 
the type (from Otago, described as a $!) is so unrepresentative, as compared with the normal Wellington 
forms, that Ij hesitated about its identity until Mr. A. H. Stringer, of the British Museum, had investigated 
its genitalia. Its enlarged cell-spot is quite exceptional in this species. — ab. bipartita nov. (37 k) is a frequent 
for minever, I think, matched in gobiata) with the entire anterior part of the forewing pale (about as in sharply 
marked vitalbata Schiff.), the rest of the wing almost entirely dark. Type from Wellington, in my collection. 
Auckland, Porirua, Wellington, Otira, Queenstown, Dunedin and Invercargill are known localities for anguli¬ 
gera. It often visits Veronica. Larva pale ochreous brown, similar to the preceding but with a blackish 
swelling on the mesothorax. 
H. tersata Him. chinensis Leech (Suppl.-Vol. 4, pi. 17 d). This eastern race, or very close ally, of the 
widely distributed tersata of the Palaearctic Region (Vol. 4, pi. 13 1) was described from Chang Yang, but seems 
to be distributed from Omei to Japan. On an average rather small, with the lines (including the subterminal 
of the forewing) ill-defined, the cloudings on the postmedian and subterminal rather well developed. 
H. plurilineata Moore (Vol. 4, pi. 7 f $) (38 a $). Wings narrower and more elongate than in tersata, 
particularly in the $; sexual dimorphism strong, the $$ being regularly darker and more clouded. Forewing 
in the <$ with a conspicuous double dark post median spot, on the 3rd radial and 1st median. Khasis and Sikkim, 
the type from Cherrapunji. 
H. nigrovittata Warr. ( = nigripunctata Warr.) (Suppl.-Vol. 4, pi. 17 d). These names, referring respect¬ 
ively to the $ and the o, were formerly sunk as synonyms of plurilineata, but represent a distinct though nearly 
allied species, with several differences in the $ valve, juxta etc. The $$ are variable, both in size, tone, and 
distinctness of markings, but no N. W. Indian species is yet known which could be confused with it. The $ 
is less extremely elongate-winged than that of plurilineata. Both sexes were described from Thundiani, but 
the distribution is wide in the Punjab and Kashmir and extends to Kumaon. — f. exors Prout. Slightly less 
narrow-winged, considerably paler and less brown, with the dark transverse lines much more distinctly expressed, 
the double, dark postmedian spot wanting, the sexes more nearly alike; altogether more resembling a small, 
narrow-winged form of tersata Hbn. (Vol. 4, pi. 13 1). Kashmir, the types from Koksar, some intermediate forms 
from other localities (Narkundah, Nubra Valley, etc.). Perhaps a tenable subspecies. 
H. impigra Prout (? — plurilineata Sterneclc, nee Moore) (Suppl.-Vol. 4, pi. 18 g) is structurally nearer 
to nigrovittata than to plurilineata, and might possibly be treated as a subspecies, but the chitinized arm of 
the sacculus, which in the former is longer and less slender than in the latter, is here longer still and there 
