ROSE-MOTH. 
78 
and has a height of about 3 feet, and carries 
yellow flowers in July and August; and another, 
Laserpitium libanotis, was introduced about 50 
years ago from Germany, and has a height of 
about 20 inches, and carries purple flowers in 
June and July. 
ROSEMARY (Witp). See AnpRomEpa. 
ROSE-MOTH,—scientifically Argyrotoza Derg- 
manniana or Torirtv Rosana. A very beautiful 
and very destructive moth of the Tortricidee fa- 
mily. It acts a prominent part in the devas- 
tating of rose plants, but is far from being alone 
| in that work. “There is scarcely any plant,” 
says Mr. Westwood, “ which is more liable to the 
attacks of insects than the rose. Not to mention 
the aphides which occasionally swarm to so great 
an extent, at certain seasons, on particular varie- 
ties, as to render the plant too weak to be able 
to accomplish its flowering; the saw-flies, several 
species of which feed upon the leaves, in the lar- 
ve state; the mining 7?nec, whose larve render 
the leaves unsightly by tracing their serpentine 
track within the substance of the leaf; the leaf- 
cutter bees, Megachile, which cut out circular 
patches from the leaves to form the lining of 
their cells; or a species of the curious genus Ly- 
da, belonging to the family Tenthredinide, which 
constructs a large portable case of pieces of the 
leaves, which it ingeniously cuts out, and then 
fastens round its body in a spiral direction, a 
course of proceeding quite unlike anything 
hitherto observed in the family to which it be- 
longs ; there are yet several small species of moths, 
which in the caterpillar state are still more in- 
jurious than all these, by gnawing away the ten- 
der parts of the shoots and buds whilst very 
young, so that, when the bud attains its full size, 
it is found to have half of the petals devoured ; 
besides the ugly appearance given to the plant 
by the leaves being fastened together, prevented 
from assuming their ordinary elegant appearance, 
and partially devoured. Hence, it will be easily 
conceived that these insects are far more ob- 
noxious to the rosarium than any of the others 
mentioned above; and, indeed, they are some- 
times so numerous, especially in the early blowing 
varieties, that it is as common to hear the ordi- 
nary presence of a blight on the rose-trees attri- 
buted to the appearance produced by an attack 
of these insects, as upon any other tree.” 
The principal moths which attack rose-plants 
in this way are Lozotenia rosana, L. oporana, L. 
nebulana, and L. levigana; the Spilonota aquana 
and the Pterophorus rhododactylus are also rose- 
feeders ; the Dictyopteryx Horskaoleana destroys 
centifolious roses ; the Spzlonota cynosbatella either 
feeds on rose-buds, or forms rose-leaves into a 
web in preparation for its pupa state ; and the 
Antithesia salicella feeds so, in its caterpillar 
state, on the leaves of the centifolious rose, as to 
be sometimes called the Provence rose-moth. 
But the Argyrotoza Bergmanniana, as we have 
said, is the most destructive of all. It is one of 
ROSTRARIA. 
the smallest and most splendid of the Tortricide ; 
and is described as follows by Mr. Stephens :— 
“Anterior wings yellow, clouded with fulvous, 
and obscurely reticulated with the same, with 
four slightly curved, nearly equidistant streaks 
of silvery dots,—the first abbreviated and near 
the base, the second before the middle, the next 
rather behind, extending obliquely to the anal 
angle, and the fourth on the hinder margin itself ; 
cilia pale yellow; posterior fuscous, with dirty 
yellow cilia; head and thorax sulphur-yellow. 
Extremely abundant in hedges and gardens, by 
the sides of woods, &c., throughout the metro- 
politan district, and in most parts of England, 
at the end of July and beginning of August.” 
The caterpillar is only about four lines long, and 
has a fleshy consistence, and a dark flesh colour, 
with a black shining head; and the crysalis has 
a pale reddish brown colour, and is of the ordi- 
nary form, without any of the angular projections 
which occur in the crysalides of some butterflies. 
The caterpillar is the depredator, and commences 
its attacks on the leaves as soon as they appear, 
and works two or more of them into a packet or 
pouch for affording itself retreat and subsistence, 
and burrows in the young flower-buds in order 
to feed upon the petals, and finally provides a 
retreat among the foliage for undergoing its 
transmutation into a crysalis. 
“The extirpation of these insects,” remarks 
Mr. Westwood, “is matter of difficulty. They 
are, it is true, very conspicuous in the winged 
state ; and, if care were taken to employ children 
in catching and killing them just at the time 
when they make their appearance as moths, the 
laying of the eggs would be prevented, and the 
trees saved from the next year’s broods. Bouché, | 
however, recommends brushing the twigs of the 
rose in the winter with a stiff brush, which would 
have the effect of destroying the eggs; but as 
these are deposited in the most secure places, at 
the roots of the eyes and under the base of the 
young twigs, there is some danger and much 
difficulty in this method. An inspection of the 
trees in the early spring, before the insects have 
done much damage, will easily show the places 
of lodgement of the larvee, which may then be 
readily destroyed by the hand.” 
ROSE OF HEAVEN. See Lycunis. 
ROSE OF JERICHO. See Anasrarica. 
ROSE ROOT. See Ruopiora. 
ROSE SNOWBALL TREE. 
Rose. 
ROSIL, or Rosimus. Land of medium me- 
chanical condition between light and heavy, or 
between sand and clay. 
ROSIN. See Restv. 
ROSMARINUS. See Rosemary. 
See GUELDER 
ROSTEL. The organ of mechanical attach-: | | 
ment. possessed by rock-inhabiting cryptogams | | 
in lieu of a root. S 
ROSTRARIA. A hardy, annual grass of the 
fescue tribe. It constitutes a genus of itself, and 
if 
ore 
