THE ENTOMOLOGIST’S WEEKLY INTELLIGENCER. 159 
having a large hole near the bottom, 
where the larva has entered after quitting 
the old plant, I have invariably found 
either a larva or pupa, the latter with the 
head downwards. On coming to a knot 
in the stem the larva? always pass trans- 
versely, in an oblique direction, through 
the knot, blackening the side of the stem 
opposite to that of the division below. I 
never observed one to deviate from this 
rule when feeding on T. latifolia, though 
in T. anguslifolia they eat straight up. 
I have found many mines in the latter 
plant, though only one pupa. The for- 
saken stems are the habitat of a small 
species of Staphylinus , an Oxytelus P 
abundant in some, but occurring only 
singly in others. — R. Tyree, jun., Hill 
House, Eye ; August 6. 
Morphology in Sialis lutarius . — Since 
I have been directing attention to the 
Neuroptera of this neighbourhood a cu- 
rious case of morphology has fallen into 
my hands in the above insect. The 
morphology is on the right side. The 
insect, as is well known, iu its normal 
state, has four wings ; now this has five, 
or at least the rudiments of a fifth, the 
rudimental one being placed rather high 
up above the anterior one on the right 
side, the proper wing being bent into 
rather a sharp angle near its base, giving 
the nerves an elbowed appearance. The 
anterior wing, in its normal condition, 
should have twelve transverse ante- 
cubical nervures; now this, on the mor- 
phological side, has but nine, and the 
rudimentary wing has three and a half 
transverse nervures, but placed on the 
opposite side approaching the sectors in 
form and disposition in the Libellulinae, 
thus making up for those wanting in the 
normal condition of the wing. This 
shows that Dame Nature is not lavish in 
her materials, of which she builds up the 
fabrics and structures of the insect world ; 
in fact, it shows the strictest economy 
that can possibly be pursued. Not 
having heard of a similar case of mor- 
phology, I should like to know, through 
the pages of the ‘ Intelligencer,’ if any of 
these deviations from the normal form 
have been observed before in the Neu- 
roptera. — E. Pahfitt, Somerset and 
Taunton Institution ; August 2. 
EXCHANGE. 
Erehia Blandina . — Having several of 
this insect in duplicate, I should be happy 
to exchange them for any of the follow- 
ing, according to ‘ Manual’ numbers: — 
1, 3, 4, 23, 24, 29, 33, 35, 42—44, 48, 54, 
59. — J. K. Fawcett, House of Correction, 
Kendal ; August 7. 
Zeuzera JEsculi . — Having a quantity 
of the eggs of this species, laid by speci- 
mens captured by Mr. R. B. Smith, of 
Blackheath (in July, from the 7th to the 
12th, on a partly-decayed ash), I shall 
be happy to exchange them for fine 
specimens of any of the following: — 
P. Machaon, 
H. Semele, 
G. Blandina, 
S. Carpini, 
P. Statices, 
A. Cratasgi. 
— William A 
Southampton ; 
T. Rubi, 
P. Arion, 
P. Corydon, 
S. Paniscus, 
T. Tipuliforme, 
Lewis, Springliill House, 
August 2. 
Exchange . — Having spare specimens, 
in fine condition, of Epione Advenaria 
(male and female) and Myelois Cribrum, 
I shall be glad to exchange for sets of 
six of E. Vesperlaria and E. Apiciaria . — 
G. Fisher, 21, Neiv Church Street, Edge- 
ware Road, London. 
Ilaggerslone Entomological Society . — 
Among the exhibitions on the 4th inst. 
were the following : — N. Bicolor a (taken 
in Ireland during the present season) and 
S. Palealis, exhibited by Mr. Harding. 
S. Convolvuli, exhibited by Mr. Bryant. 
A. Ophiogramma (taken on the Totten- 
ham Marsh), by Mr. Thomas Huckett. 
