ye 












tructures scattered over the legs and at the base of the wings. The 
eect take no part in smell, contrary to the current belief. 
Br account of this work will appear in the American Bee Journal. 
CEREAL AND FORAGE INSECT INVESTIGATIONS. 
1 Sere nae 


F. M. Webster, in charge. 
MAY-BEETLES IN 1914. | 



















Studies made by assistants in the cereal and forage crop 
Ms ie the past few years indicate an unusval abundance 
beetles, the parents of the destructive white grubs, in the northern 
| States from South Dakota to Connecticut, this spring. Owing to 
* that there are many different species of May-beetles it is im- 
a that the predominent species of different localities be deter- 
as well as the years of abundance, to enable us to work out, so 
S possible, the different broods, as has been done in the case of 
eriodical cicada or so-called 17-year locust. With this information 
AY be possible to give advance warnings previous to years of abundance © 
the ravages of the white grub thereby reduced to a minimum. 
Beetles should be most abundant during the month of May but may 
through the month of June. All collections sent should be enclosed 
Beoien box, if possible, or if killed in alcohol, shipments may be 
in Cans or jars. The date of capture, whether collected at lights, | 
the plow, or at trees (the beetles feed on the foliage of various ) 
5, place of collection, and name of collector should accompany 
imens. ‘The larger the number of beetles’ sent the more accurate will 
ta be. Shipments should be made to J. J. Davis, U. S. Entomological |} 
ratory, tafayette, Ind. . 
1 
4 
4 NOTE ON KEROSENE EMULSION. 

A rather zood question came up to-day at the Wellington station 
Btive to the amount of water to be added to a given quantity of kero- 
5- pemulsion stock solution to make a given per centum of kerosene; the 
lsion being the usual 2/3 kerosene content. In view of the importance 
Bris contact spray it seemed to. the writer advisable to submit a sure 
simple formula by which to determine the quantity of water to add. 
x = the amount of stock solution. 
wanted is always given. 
x the amount of water to add. 
| (2/8 of x) f 
mula. (-------- )- x =Q 
CS. ) 

