OF THE EARM AND GARDEN". 197 



same year, but "the Locust years" differ in different 

 States. In the Report above referred to, there are given 

 the dates of the appearance of twenty-two different 

 broods. For example. B.rood XX which appeared in 

 1866, may be looked for in 1883 in Western New York, 

 Western Pennsylvania and in Eastern Ohio. The brood 

 XXI, is due in 1884 and at intervals of seventeen years 

 thereafter, in parts of North Carolina and in Central 

 Virginia. In 1885 a brood will appear in parts of New 

 York and New England^ in parts of Pennsylvania, Mary- 

 land, the District of Columbia, in Delaware, Virginia, 



Fig. 122 THE DIGGER WASP (Stizus grandis). 



in parts of Ohio, Michigan, Indiana and Kentucky. This 

 brood has a record extending from 1715, since which 

 date it has appeared at regular intervals of seventeen 

 years, up to its last occurrence in 1868. In some cases 

 two broods may lap over upon one another in the same 

 locality. 



DOES THE CICADA STIKG? There have been various 

 accounts in the papers of injury from the sting of the 

 Periodical Cicada. It has a beak by means of which it 

 draws its nourishment from the branches of trees, and 

 it may be that in careless handling of the insect, it has 



