50 
THE ENTOMOLOGIST’S WEEKLY INTELLIGENCER. 
leaving a sufficient quantity to prevent 
the little colony from becoming extinct, 
and, at the same time, allowing our- 
selves an opportunity of studying the 
habits and transformations of the deni- 
zens of the little marshy fen. 
In Norfolk there are a few Entomolo- 
gists who are mostly collected in one 
spot, for Entomologists have always a 
tendency to multiply where they settle, 
and at present Lynn Regis appears to be 
the focus of Entomology in Norfolk. It 
is the task of the Entomologists of Lynn 
to entomologise the whole of their 
county. May they succeed ! 
The extensive county of Lincolnshire 
is one of the worst populated by Ento- 
mologists in the whole country. And 
why is this ? We know of one Lincoln- 
shire Entomologist from whom we expect 
much ; but certainly the insect-hunters 
in the parts of Lindsey and Kesteven are 
few and far between. There may be 
more in the county than we know of: 
let us hope it is so. 
Essex we have kept to consider last, 
from its propinquity to London, and 
Essex is entomologically notorious from 
containing Epping; but beyond Epping, 
northward and eastward, how many En- 
tomologists does it contain ? Look at 
the country about Colchester teeming 
with Iris; the lane, near Lavenham, 
where Mr. Gaze took Lathonia ; and why 
should this country be unproductive of 
Entomologists P 
Holly Leaves. 
At this season of the year none who 
look at a holly bush can fail to perceive 
that many of the leaves bear on the 
upper surface a large irregular pale 
blotch, the w'ork of a small mining larva. 
Benevolent individuals, aware of our 
partiality for small mining larvae, and 
unaware that those in the holly are not 
Lepidopterous, persecute us about this 
period of the year with these fly-blown 
holly leaves, each post bringing us a do- 
nation of two or three. At Christmas 
time such a contribution might not be 
altogether useless, as the holly would 
serve to deck our studio ; but now 
Christmas, with all its associations, is a 
little passi, and, as the revenue is now so 
flourishing, there is no occasion for our 
kind friends to inflict upon themselves 
unnecessary postage ; hence, that they 
may learn “ what to avoid,” we this week 
give a figure of a holly leaf with the dis- 
coloured track of the larva of Phytomyza 
Aquifolii, a small Dipterous insect, a 
description of which will be found iu the 
second volume of Mr. Walker’s ‘In- 
secta Britannica, Diptera.’ A history 
of the little insect, illustrated by a plate, 
will be found iu the ninth volume of the 
second series of the ‘ Annales de la So- 
ciete Entomologique de France’ (pub- 
lished in 1851), at p. 143, Plate V., No.fi. 
This history is by our very excellent 
friend Colonel Goureau. 
The Entomologist’s Weekly In- 
telligencer may be obtained 
Wholesale of E. Newman, 9, De- 
vonshire Street, Bishopsgate, and of 
W. Kent Co., 51 & 52, Paternos- 
ter Row ; 
Retail of J. Van Voorst, 1, Paternos- 
ter Row; James Gardner, 52, High 
Holborn ; II. J. Harding, 1, York 
Street, Church Street, Shoreditch ; 
A. W. Huckelt, 3, East Road, City 
Road ; at Brighton of John Taylor, 
News-agent, Stationer, <Scc., 8fi, 
North Lane; at Leeds of J. Fox, 
