35 
sandy portions of the coast on the marrams. The lighthouses 
form most productive traps for these species, and many varieties 
may bo obtained from them. Another method for taking the 
night Hying coast insects during the day, is to kick the ti?fts of 
marram grass, by wliich means the noctum whicli conceal them- 
selves amongst the roots during the day, may be dislodged. 
4th. Forest insects. These, 1 think, will scarcely be found so 
numerous in Norfolk as in the neiglibouring county of Suffolk. 
Apatura iris, Lirnenitis sibylla, and the large fritillary, Argynnis 
paphia, have not, I believe, as yet been recorded as taken in 
Jiorfolk ; but I hope that by diligent search they will be found, 
as I have met with two out of these three lino species within a 
couple of miles of the border of the county. Possibly the rarity of 
any very old woods in Norfolk may account for the absence of these 
and other forest species, as I believe that insects will generally be 
found to be amongst the oldest inhabitants of a district. 
5th and lastly, there is a group of insects which are found 
generally in the neighbourhood of cultivated ground, in hedge- 
rows, fields, &c. 'Ihese, of com-se, are abundant in almost all 
parts of the county. Amongst them are some which deserve to 
bo studied not on account of their rarity or their beauty but 
on account of the injury which they cause to the crops, and for 
the sake of devising, if possible, measures to check their ravages. 
Of these five groups of lepidoptera, the marsh species are 
undoubtedly those which are most characteristic of Norfolk, and 
which possess most interest in the eyes of coUectors. Owing to 
the alterations produced by drainage, these species are fast 
disappearing from every other part of England, and it is incumbent 
on the Norfolk entomologists to work out the life histories of 
many of them, before they become, like most of the fen birds, 
altogether things of the past. There are, I believe, generally one 
or two men who come down during the summer for the special 
puqiose of collecting these marsh insects for sale ; and I know 
from the intercourse which 1 have had with some of these ento- 
mologists, how much practical and interesting knowledge of the 
habits of their prey they possess, and I hope that this Society 
may be the means of inducing these men to come for^vard and 
communicate their knowledge for the benefit of entomologists at 
large. 
D 2 
