92 
THE WEEKLY ENTOMOLOGIST. 
the South. Convolvuli was Southern, 
Now it is often taken in the North, 
when the same means of capture are 
used. JEdusa, once Southern, has been 
seen by me on a railway bank near a 
clover field, at Penrith, in profusion. 
Antiopa has been taken in almost 
every county in England, ( though 
always singly ). Argiolus, once Sou- 
thern, tnrned up freely in tho North, 
when looked for in proper places ; — 
and so, of most others, — but the few 
really Northern (i. e. mountain ) spe- 
cies, such as Cas/tiope, Trepidaria and 
Carbonaria, need not be looked for 
except in proper localities, let the 
weather be what it may. Viduaria, 
once exclusively taken in the New 
Forest, turned up in Perthshire, when 
a “ New Forest ” collector, who knew 
its habits, went there. Viridata, once 
exclusively Southern, put in an ap- 
pearance, in hundreds to J. B. Hodg- 
kinson. Vvretata, once a “ Darenth 
plum,” answered the persistent call 
of such men as Greenip and Harrison, 
at Keswick. Carmelita, the pride of 
Birch Wood, presented itself to those 
who looked for it, at Keswick and at 
Itannoch, and the Kentish Glory is 
now known in the Birch Woods of 
Perthshire, in the neighbourhood of 
Dunkcld and elsewhere, the only 
place, between these two habitats, 
where it has been seen, being two 
hundred miles from either. That in- 
sects have a metropolis, from which 
they radiate, wherever suitable food 
and locality obtain, is freely admitted, 
by practical men, but that they mi- 
grate from here to yonder, it will re- 
quire proof to satisfy us, none what- 
ever having yet been offered. 
That insects are conveyed from 
home against their will may be seen 
by those who travel much in railway 
trains. A train is off at full speed, — 
the windows open, and insects near, 
are drawn into the carriage, where 
they are taken to Jericho, or else- 
where. Another occasion of transit 
is when luggage trains, covered with 
tarpauling, stand in stations. Moths 
rest under the tarpauling, and are 
taken with the trains. This trap is 
well known to Collectors who are em- 
ployed on Railways. Suppose an in- 
sect which feeds upon buckthorn, or 
even on hazel, is landed in Manches- 
ter, its days arc numbered, for it has 
no food, on which to deposit its eggs. 
Just so with Continental insects. 
Food, — not climate, — prevents their 
thriving here. Colias JEdusa is in 
profusion in North America, where 
the thermometer falls far below the 
point it reaches here, and remains 
below much longer. The same re- 
marks apply to P. Machaon. I never 
heard of this species in Cornwall, but 
in .North America it is a common 
spocics, — as it is in Asia. 
That foreign insects are imported 
amongst foreign produce, may often 
be seen in Liverpool. I have taken 
here two species of large moths new to 
science, viz . — Orammophora Dipl he - 
roidcs (Cooke)and a Cucullia, besides 
sovcral new species of Tinocs. In this 
group it is climate,— not want of food, 
— whioh seems to check increase, in 
