90 
proved a serious pest to the Pine in New South Wales. He also men- 
tions the fact that one of the walking-stick insects, known as Podacan- 
thus wilkinsoni, has been damaging Eucalyptus trees in the vicinity of 
Walcha, New England, New South Wales. The same number contains 
a description of Dactylopius herbicola, a new scale insect infesting the 
stems of grass near Penrith, New South Wales, by Mr. W. M. Maskell. 
Economic Entomology in Mississippi.*—In Bulletin No. 14, of the Mis- 
sissippi Station, received September 24, Mr. H. E. Weed treats of the 
Screw Worm, the Pea and Bean Weevils, the Striped Cucumber-beetle, 
the Peach-tree Borer, the Ox Warble Fly, the Plum Curculio, the Cod- 
ling Moth, insecticides, and spraying machinery. The Screw Worm 
article is a thorough and careful summary of the habits of the insect, 
drawn up from personal observation. The best remedy is said to de- 
pend upon the condition of the wound. Preference is given to chloro- 
form in a fresh case, and to carbolic acid in older cases. In treating of 
remedies for the Pea and Bean weevils we notice that Mr. Weed adopts 
the plan suggested by Prof. A. J. Cook, of inserting a gas pipe to 
the bottom of the quarantine bin in order to send the carbon bisulphide 
to the bottom of the mass of peas. This, as we have elsewhere stated, 
involves an erroneous principle, and we have recommended that the 
bisulphide be placed in shallow vessels on the top of the weevil-infested 
mass, as the vapor is heavier than air and falls rather than rises. The 
peas, beans, or grain will be more thoroughly permeated in this way. 
The other articles are mainly compiled. 
A Bulletin on Plant-lice, from Wyoming.t—Mr. F. J. Niswander, the 
recently appointed entomologist of the Wyoming Experiment Station, 
has published a short bulletin on the subject of Plant-lice, which we 
notice as the first entomological publication from this State. The bul- 
letin gives the habits of Plant-lice in a general summary, but mentions 
particularly the species occurring upon Cottonwood, Pemphigus popult- 
monilis, and Chaitophorus viminalis. A number of the natural enemies 
are mentioned, and the kerosene emulsion (Cook formula) is recom- 
mended as a remedy, whether or not from the author’s experience does 
not appear. . 
* Mississippi Agricultural Experiment Station, Bulletin No. 14, Injurious Insects. 
Howard Evarts Weed, Entomologist, Agricultural College, Mississippi, March, 1891. 
+ Wyoming- Experiment Station, Bulletin No. 2. Plant-lice. Laramie, August, 
1891. 
