478 
LEPIDOPTERA. 
tlieir long, wide, and flattened feelers, which are held close 
together, and project horizontally from the fore part of the 
head, in the manner of a snout. The antennae in both 
sexes are naked, and bristle-formed. The wings vary in 
color, being sometimes dusky or blackish brown, and some- 
times of a much lighter rusty-brown color. The fore wings 
are marbled with gray beyond the middle, and have a dis- 
tinct oblique gray spot on the tip ; they are crossed by two 
wavy blackish lines, one near the middle, and the other 
near the outer hind margin ; these lines are formed by little 
elevated black tufts, and there are also two similar tufts 
on the middle of the wing. The hind wings are dusky 
brown or light brown, with a paler fringe, and are without 
bands or spots. The wings expand about one inch and a 
quarter. 
The means for destroying the hop-vine caterpillars are 
showering or syringing the plants with strong soapsuds, or 
with a solution of oil-soap in water, in the proportion of two 
pounds of the soap to fourteen or fifteen gallons of water. 
The foregoing is the only kind of Delta-moth that appears 
to be particularly injurious to any of our useful or cultivated 
plants. 
5. Leaf-Rollers. ( Tortrices .) 
There are many caterpillars that curl up the edges of the 
leaves of plants into little cylindrical rolls, open at each 
end, and fastened together with bands or threads of silk. 
These rolls serve at once for the habitations and the food 
of the insects ; and to the latter Linnaeus gave the name 
of Tortrices, derived from a Latin word signifying to curl 
or twist. All the caterpillars now put in this tribe are not 
leaf-rollers. Some of them live in leaf and flower buds, 
and fasten the leaves together so that the bud cannot open, 
while they devour the tender substance within. Some live 
in a kind of tent formed of several leaves, drawn together 
and secured with silken threads. Others ai’e found in the 
