JOURNAL OF PROCEEDINGS. 
XV 
Thomas Henry Hope, Esq., of Netley, Shropshire, was elected 
an Ordinary Member of the Society, and 
M. Fraehlich, of Eilvagen, an ordinary Foreign Member. 
Exhibitions, Memoirs, &c. 
Mr. Waterhouse exhibited a specimen of Nomada ferrugata , 
which he had detected in the cell of a species of Andrena, (appa- 
rently not described by Mr. Kirby,) having previously observed 
the formation of the cell by the Andrena itself. Also three spe- 
cimens of Nomada Goodcniana, dug out of banks where the nests 
of Andrena n'wro-cenea were found. He also stated that he had 
O 
found a specimen of Halictus minutus, infested by the larva of one 
of the Strepsiptera. 
M. Desvignes exhibited specimens of Hyleccetus dermestoides , 
taken on the first of May, by himself, in Sherwood Forest, and 
found running very quickly upon the trunks of oak trees. 
The following Memoirs were read, 
“ Description of a minute Parasite which infests the Larvae of the 
Stylopidce in very great numbers, and upon the insect produced 
from the eggs of Meloe proscar abceus." By J. O. Westwood. 
“ On the Physiological Peculiarities of several hermaphrodite 
Lucanidce .” By the same. 
“ Additional Notices relative to the Ravages and Natural Plistory 
of Scolytus destructor .” By W. Spence, Esq., in a Letter addressed 
to the Rev. F. W. Hope. 
In this communication, dated from Brussels, May 30th 1836, 
Mr. Spence states that he had found a little parasite vermicle 
on the outer surface of the skin of many of the larvae and of 
all the pupae of Scolytus destructor which he had examined, and 
on some in vast numbers. It is very minute, perhaps about one- 
eighth of a line long, filiform, very slender and attenuated at 
each end ; indeed, of the exact shape, as far as he could recollect, 
of the so-called Vinegar Eels, Vibrio anguilla, and moving in the 
same way, transparent, smooth, and with traces of transverse 
articulations, through M. Wesmael’s microscope of one-fourth of 
a line focus, but without any appearance of mouth or intestine, 
the inside seeming merely filled with granular molecules. On 
first examining the pupa, they lie so closely apprysed to its 
surface as to be seen with great difficulty, but apparently from 
exposure to the air, many of them soon lift up their bodies, and 
move them rapidly about, seeming to remain attached to the pupa 
VOL. II. II 
