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of "carabioid," followed by the form of "scarabeoid," to become, after 

 that, a pupa and finally a perfect insect. As larvae they penetrate into 

 the oothecae or egg-cases of some Orthoptera and prey upon their eggs, 

 as, for instance, upon the eggs of grasshoppers (Caloptenusfemur-rubrum) 

 which sometimes devastate our crops. 



Unfortunately after having done such good w^ork they become injur- 

 ious w^hen in the condition of perfect insects they attack our potatoes, 

 tomatoes, etc., stripping them of their leaves in two or three days, even 

 before those who have no knowledge of them suspect their presence. 

 They come in large swarms and don't stay long, getting through a great 

 deal of work in a short time. 



Gray Blister Beetle 



Best Ways to Fight against the Meloidae. From what 



has been said above about the larvae of the Meloidae, one may come to 

 the conclusion that there is no need to fear them before they assume the 

 condition of perfect insects. This shortens very luckily the time dur- 

 ing which we must take measures for destroying them. 



On the farms where spraying with poisoned Bordeaux mixture is re- 

 sorted to as a means of getting rid of the Doryphora and of the various 

 rots and other diseases of the potato, there is no need to look for some 

 other method against the attacks of the Meloidae than that of using this 

 mixture of which I give here the formula: 



Copper sulphate ( blue stone ) » 4 lbs. 



Ivime (fresh) 4 lbs. 



Paris green 4 oz. 



Water ( i barrel ) 40 gallons. 



As the attack of the Meloidae is quite sudden and as they are highly 

 voracious, one should be very prompt in making the application of that 

 mixture at the moment their presence is pointed out. 



