BENEFICIAL VERSUS INJURIOUS INSECTS. 
work consisted briefly of an examination of the leaf hoppers to be fonnd | 
‘on a number of Chenopodiacee, native or introduced, such as Salt 
Bushes (Atriplex), Goosefoot or Fat Hen, Russian Thistle, and various 
other weeds and grasses; a search for the larve that were parasitized; 
the collection of lavyge numbers of hoppers and larve; the packing and 
despatch of the collections by steamer to Oalifornia. It has been of 
reat value to have had these investigations by Mr. Vosler, who visited 
all our State Agricultural Departments, and secured the active co-opera- 
tion of all the entomological branches. The investigations became 
practically Federal in character. Co-operative projects like this should 
form part of the scheme of entomological research to be undertaken 
by the Institute of Science and Industry. The main outlines of Mr. 
Vosler’s work has been published in Science and Industry, Vol. 2, No. 3, 
pp.184-189, so that only brief reference need be made. ‘The Leafhopper 
Cage used for rearing Beet Leafhopper. 
(After Vosler.) 
is a tiny insect of the family Oicadellide (or the Jassids), and not nao 
removed from the Cicadas, and included in the same order, Homoptera 
with the aphids and scale insects. ‘A leafhopper was found on Atriplex 
mulleri near Sunshine, in Victoria, that was parasitized ‘to the extent 
of 85 to 90 per cent. by two egg parasites, Plergogramma acuminata, 
and a Mymarid. The former attacks several species of Jasszds or leaf- 
hoppers, and the chances of its breeding successfully on the beet leaf- 
hopper in California were thought to be good. ‘The leafhoppers have 
their mouth parts well developed for sucking the juice from plants, and 
one species, Hutettia tenella, has become a serious pest of the sugar- 
‘beet in California, being the chief means of distribution of the disease 
‘known as Curly Leaf of the Beet. The previous investigations in 
0.13383.—4 481 : 
