THE TORTRICES OF SURREY, KENT, AND SUSSEX. 187 
Besides the district lists from Folkestone, Hastings, and 
Reigate, I have been obliged to depend entirely upon the kindness 
of friends and my own notes for the information contained in the 
following list. I have made it as complete as possible; still it 
presents a somewhat meagre appearance, especially in the number 
of localities in which the various species of insects are known to 
occur. 
In making a collection of “Tortrices—and it will be extremely 
difficult, if not impossible, for anyone to become thoroughly 
acquainted with this group of insects without a collection at hand 
for constant reference—the chief difficulties to be encountered are 
the tendency of some of the species to “spring” after being set, 
and of others to succumb to the gradual production of verdigris. 
To avoid the. former evil the Tortrix collector must, with the 
majority of specimens, entirely dispense with the damping box, 
which almost invariably causes the wings of the specimens left in 
it to close over the back, like those of a butterfly at rest. When 
they have once assumed that position it is scarcely possible to set 
them with any certainty of their permanently retaining the desired 
form. During the first spell of damp weather their wings frequently 
show a tendency for the upward movement just described, until 
in a short time the cabinet series exhibits a complete variety of 
attitudes by no means pleasing to the eye, and as opposed as 
possible to all ideas of symmetry. With very few exceptions, 
such as Phtheocroa rugosana and some of the Hupecilia, 'Tortrices 
-may safely be carried home in pill-boxes, unless the size chosen 
is too small, without danger of their damaging themselves; but 
it is never advisable to put more than one specimen into each 
box. The smaller sizes of the glass-bottomed boxes are most 
handy, for they enable a closer view to be taken of an insect than 
is possible in the net, and also facilitate the rejection of worn and 
damaged examples, two advantages which are not to be despised 
at any time, and are especially useful on fortunate expeditions. I 
need hardly remind my readers that, when captured, all Miecro- 
Lepidoptera should be kept in the dark and as cool as possible 
until they are killed. : 
Some groups of 'Tortrices are more subj ect than others to the 
attacks of verdigris, to which those whose larvee are feeders upon 
pith of plants are particularly liable. I may specially mention as 
instances of this the Dicroramphe and several of the Ephippiphore 
