THE ZooLocist— JULy, 1872. 3153 
Entomologist’s Monthly Magazine’ for June; by the Editors. ‘A Discussion 
of the Law of Priority in Entomological Nomenclature; with Strictures on 
its Modern Application; and a Proposal for the rejection of all disused 
Names,’ by W. Arnold Lewis, F.L.S., M. Entom. Soc. Lond., Barrister-at- 
Law; by the Author. ‘‘ Notes on some Arachnida collected by Cuthbert 
Collingwood, Esq., M.D., during Rambles in the China Sea, &c. ; ‘ Descrip- 
tions of some British Spiders new to Science; with a notice of others, of 
which some are now for the first time recorded as British Species;’ by the 
Author, the Rev. O. P.-Cambridge. ‘Contributions pour servir a l‘histoire- 
naturelle des Ephémérines,’ two pamphlets; by the Author, M.le Dr. Emile 
Joly. 
Exhibitions, dc. 
Mr. Stainton exhibited a twig of cork-oak (Quercus suber) from Cannes, 
placed in his hands by Mr. Moggridge, bearing examples of a large black, 
berry-like Coccus. 
Prof. Westwood exhibited a cotton-like mass enveloping the cocoons of a 
minute parasitic hymenopterous insect of the genus Microgaster, which 
infested the caterpillar of some large species of Bombycidz in Ceylon. The 
mass was the product of the parasites of a single larva. He had extracted 
therefrom 717 of the parasites, and, as many more remained, there could be 
little doubt but that about 1000 of these insects had been nourished within 
this single caterpillar. 
Mr. F. Moore stated that he had observed a similar occurrence in a larva 
of a species of Odonestis from Bombay. 
Prof. Westwood also exhibited an apple-twig, the buds of which were 
destroyed by some small larva, apparently pertaining to the Tortricide. 
The outside of the twig was much blackened, and he thought this had some 
connection with the presence of the larve. 
_ Mr. Stainton observed that the larva of Laverna atra fed within the 
_ shoots of apple, but he could not say that the twig exhibited was infested by 
that species. 
Mr. Stainton exhibited a drawing of a vine-leaf mined by the larva of 
Antispila Rivillei, and a bred specimen of the perfect insect, which had 
appeared on the 23rd of May last. He prefaced the exhibition with the 
following remarks ;— 
“The exhibition I am about to make is in many respects the most 
interesting I shall ever make in the course of my life; it seems to border 
upon the domain of prehistoric Entomology: we must go back, before the 
appearance of the first volume of De Geer’s Memoirs, to a period little later 
than the conclusion of Reaumur’s Memoirs, to find the last previous notice 
of the existence of this insect. ‘That notice, in the form of a letter from 
Godeheu de Riville, a Knight of Malta, to the illustrious Reaumur, was 
printed in eztenso in the first volume of the ‘ Mémoires de Mathématique et 
