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Wallace in cultivated lands. He states that it is only useful where 
locusts are known to exist in waste lands and where several miles of 
screens are erected to arrest the natural march of the insects. Some 
attempt was made at gathering the locusts by hand, and the Govern- 
ment offered 2 piasters per oke (8.8 cents per 23 pounds), but the peo- 
ple did not seem to realize that they would be paid until most of the 
eges were deposited! 
Prof. Wallace states that small flights of locusts are frequently 
heard of in some parts of Egypt, and that forty years ago they bred in 
the country in great numbers and were exterminated by the people in 
much the same manner as this year. Comparatively little damage was 
done to crops the present year. 
LEPIDOPTERA WHOSE FEMALES ARE WINGLESS. 
M. G. A. Poujade, in La Nature for December 26, 1891, gives an ad- 
mirable summary of the natural history of the European species of 
Lepidoptera without wings, in the course of a series of articles upon 
the influence of artificial light upon insects. He calls attention to a 
most interesting observation by Giraud, made as far back as 1865, 
and which has seldom been repeated, to the effect that the wingless 
females of Hibernia and Cheimatobia were found around the lanterns in 
the Bois de Boulogne where they were supposed to have been either 
attracted by the light or the abundance of male insects which had been 
so attracted, and had climbed up the lamp-posts and had taken their po- 
sition upon the glass sides of the lamp. The more natural explanation 
seems to us that these females had been carried by light-attracted 
males while in the act of copulation and had been deserted on the 
glass side of the lamps. It would be very interesting to know whether 
similar observations have ever been made in this country in districts 
where the Canker Worm is abundant. 
TOBACCO INSECTS IN FLORIDA. 
In Bulletin No. 15 of the Florida Experiment Station, entitled ‘“ To- 
bacco and its Cultivation,” mention is made of the damage done to the 
«rop by Cut Worms, the Bud Worm (probably Heliothis armigera) and the 
Horn Worm (Protoparce carolina). Paris green and flour, in the propor- 
tion of one pound of the poison to four or five pounds of flour, is the 
mixture recommended as a remedy for these pests. It is supposed by 
the author of the bulletin that the poison may injure the texture of the 
leaf and also the flavor of the tobacco. Experiments on this point are 
promised for the coming season. 
INSECT DISEASES OF THE MEDITERRANEAN ORANGE. 
In the Mediterranean Naturalist, a monthly journal of natural science 
published at Malta, we find an article by the editor, John H. Cooke, 
