267 
cherry slug, Erioeampa cerasi, has been doing some little damage in 
parts of South Australia, and the Minister of Agriculture has issued 
a proclamation prohibiting the introduction into the colony of any tree, 
plant, or fruit in any way infested with this insect. Announcement is 
made of a public demonstration of the benefits to be derived from 
spraying fruit trees for protection against fungous diseases and the 
attacks of insects shortly to be held under the auspices of the Agri- 
cultural Bureau. The Phylloxera agitation still continues, and the 
officers of the Bureau are coming to the conclusion that in the use of 
American resistant stocks the salvation of the vine-growing industry 
of the colony is to be found. An application has been made for the 
removal of the restriction against the importation of oranges and 
lemons affected with Mytilaspis citrieola, but in view of the fact that 
this insect is not known in South Australia the application was denied. 
AN IMPORTANT MONOGRAPH. 
M. G. Y. Berthoumieu, iu the first number of the current volume of 
the Annales de la Societe Entomologique de France, has begun the 
publication of what bids fair to be a very complete monograph of the 
Ichneumonida- of Europe. The first installment of 35 pages contains 
only preliminary matter. He divides the family into six tribes, which 
correspond to the five subfamilies given in Cresson's Synopsis, with the 
addition of the Agriotypini, and gives at length the general habits and 
characters of the typical tribe Ichneumonini. Important original obser- 
vations are given upon the larval development of Ichneumon rubens, 
and the statement is made that the insects of this tribe or subfamily 
are exclusively parasitic upon the larvae of Lepidoptera. In this opin- 
ion M. Berthoumieu follows Bridgman and other observers. Upon pages 
151-152, vol. in. Insect Life, in recording the office rearings of para- 
sitic Hymenoptera, we have given three cases in which species of this 
subfamily have been reared from sawfly larva*, and we are inclined to 
think that the general statement must be modified. 
COOPERATIVE WORK AGAINST INJECTS. 
On page 376 of the last volume of Insect Life we mentioned, under 
the above heading, the result of the offering of prizes by the Genesee 
Valley Forestry Association for the collection of cocoons of some insect, 
which we concluded, from the context in the newspaper paragraph in 
which we observed the statement, to be a Clisiocampa. 
Mr. M. V. Slingerland, of Cornell University, seeing this item, has 
put us in possession of the facts in the case, and we quote his interest- 
ing letter in full : 
In 1892, while attending- the Association of Economic Entomologists at Rochester, 
and passing to and from the meetings, along some of the beautifully shaded streets, I 
saw immense numbers of the egg-masses of the white-marked tussock-moth (Xoto- 
lophus orgyla) on the trunks of the trees and in many angles of the dwelling houses 
