THE SUBSTITUTE. 
213 
ing there is no necessity for that, 
as the figure before-mentioned is 
a beautiful and exact representa- 
tion of the larvae of Menyantliidis. 
And I shall conclude by saying 
that I am not sorry I made that 
erroneous statement in ‘ The Sub- 
stitute,’ as it has drawn forth this 
information, proving Guenee to be 
right in stating that the figure 
given by Curtis of the larva by the 
side of the imago is sufficient evi- 
dence that this Salicis is only a 
variety of Menyanlhidis. [Read 
before a meeting of the Northern 
Entomological Society on the 10th 
. January, 1857]. — N. Cookk, 6, 
Wentworth Street, JEverton, Liver- 
j pool. 
The Oxfobd Univebsity En- 
tomological Society. 
The second meeting of the So- 
ciety this Term took place on Tues- 
day, the 10th inst. 
After the donations which had 
been received since the last meet- 
i ing had been announced, an ex- 
! hibition was made of a singular 
variety of Aryynnis Papkia. 
The Rev. H. A. Pickard then 
read a paper on the origin aud 
1 meaning of the scientific names 
I given to many of the diurnal Le- 
] pidoptera ; and Mr. Matthews 
iread a similar paper on the names 
I of some of the Heterocera. 
Some discussion then ensued 
'with regard to the derivation of 
' some names which appeared to be 
‘shrouded in mystery. 
Several new members were sub- 
'sequently elected, and the meet- 
ling adjourned to Tuesday, the 
.24 th inst. 
EXTRACTS. 
Notes on Noctcij: from 
Guenee’s Noctuelites. 
[Continued from p. 203. ] 
Agrotis (continued). 
In the perfect state the insects 
of this genus are very recog- 
nizable : they keep their wings 
almost parallel to the surface on 
which they rest, and the inner 
margins of the anterior wings 
oveilap, so that the animal has a 
very elongate form, which it com- 
pletely loses when its wings are 
fully extended ; they fly with 
great vivacity at dusk, and even 
some of them during the day. 
Agrotis segeturn and exclamationis 
are so common in some localities 
that you may take ten of them for 
one of any other sort of Noctua : 
this is a true nuisance for the en- 
tomologist at dusk. This nume- 
rous genus is rather diffieult to 
unravel, for certain species vary 
almost ad injinitum. The females 
only differ from the males by the 
abdomen, the antennae (in the 
species where they are ciliated), 
and by the always darker colour 
of the posterior wings. (Vol. I., 
pp. 257—259). 
Triphcma. 
A very marked family-resem- 
blance prevails in this genus, 
which has been adopted by all 
entomologists; but we must not 
therefore conclude that there are 
no groups to be established in it ; 
on the contrary, they are more 
numerous than in many genera 
which appear less homogeneous at 
the first glance. Thus, pronuba 
has an Agrotiform appearance: its 
