136 Mr. J. O. Westwood’s Memoirs 
detailed the habits and structure of the same larva, (without being 
aware of its being that of the genus Cephus); and still more re- 
cently, an excellent memoir on the same insect has been published 
by M. Guérin Meneville, with ample details of the larvee, which 
agree with those of C. abdominalis described above. It is apodal, 
or rather has the three thoracic segments furnished beneath with 
** des espéces de mamelons destinés 4 remplacer les pattes.”* In 
its larva state it lives within the stems of the rye. Unfortunately 
M. Guérin Meneville had not discovered the pupa, but adds, “ elle 
doit se métamorphoser dans la coque transparente que la larve se 
construit, et que nous avons représentée a cété de la figure de cette 
larve.” In the description of the plates, however, he incorrectly 
describes the figure here referred to as the ‘‘ Nymphe du Cephus 
pygmeus renfermée dans son tube,” which has doubtless led Mr. 
Curtis, who has copied this figure, in his memoir recently pub- 
lished in the Transactions of the Royal Agricultural Society, to re- 
figure this cocoon, and describe it as the true pupa of the Cephus. 
2. On the Proceedings of a Colony of Polistes gallica, introduced 
mto my Garden at Hammersmith from the neighbourhood of 
Paris. 
On the 9th July, 1837, Messrs. Audouin, Brullé, and myself, 
being engaged in an Entomological excursion in the woods round 
Sévres, near Paris, discovered in the Parc de Belle Vue, upon a 
wall with a southern aspect, many nests of Polistes gallica, of dif- 
ferent sizes, and generally a foot or two from the ground. They 
were attached to the wall by a small layer of the material of which 
they were composed, and a footstalk about one-sixth or one-fourth 
of an inch long, attached at the middle of the back of the layer of 
cells, which of course had a horizontal position, The day was 
rather overcast, and the wasps had not much activity. On one of 
the largest of the nests were seated about half a dozen wasps, one 
of which was a female, and the others workers. When approached 
they did not fly off, but ran about the surface of the nest with 
their heads up, in a menacing position, seeming to defend it, like 
the great ants when their ant-bill is disturbed. On one nest, con- 
taining seventeen cells (some only just commenced), was one female 
and two workers, which we secured with our forceps. Another 
larger nest I brought away, having removed its attendant wasps. 
* Notice sur quelques Insectes nuisibles. Paris, 1843, p. 39. 
