BROOD XXII—TREDECIM—1910. 69 
No records of its appearance which have come to our notice were made 
in 1883 nor in 1896. 
The distribution, by States and counties, is as follows: 
ALABAMA.—Lauderdale, Mobile. 
FiLoripa.—Gadsden, Jackson, Washington. 
Misstssrepr.—Jackson, Tishomingo. 
TENNESSEE.—Hardin. 
5 
goat 
{ 
! ; 
Fig. 24.—Map showing distribution of Brood X XI, 1909. 
Broop XXII—Tredecim—1910. (Fig. 25.) 
This 13-year brood, which appeared last in 1897, is of small extent, 
but well established by many reliable records, the oldest of which dates 
back to 1806. It is Brood IV of Walsh-Riley and VI of Riley. 
A summary of the distribution of this brood was given by Mr. 
Schwarz in Circular No. 22 of the Division of Entomology, issued in 
May, 1897. This inquiry resulted in the report of but one additional 
locality. The distribution and relationship of this brood is given by 
Mr. Schwarz in the circular referred to, as follows: 
It is confined to parts of southern Mississippi and adjacent parts of Louisiana east of 
the Mississippi, the particular localities being given further on. Dr. D. L. Phares, of 
Woodville, Miss., has taken particular pains to ascertain the extent of this brood, and 
his lucid and concise account, already published in 1885, in Bulletin 8 (old series) of 
this Division, is herewith reproduced: 
“Their western limit is the Mississippi River, the southern about 8 miles north of 
Baton Rouge, the eastern about 4 miles west of Greensburg, the county seat of Helena, 
