liKOOl) AXIl - rUKDl'X'lM I'.ilO 
(')9 
No records of its npjx^a ranee w liicli liav(> come lo our nol lee wei'e iiiadi 
in ISS.S nor in \S\H\. 
'Vhv (list I'ihiit ion, hv Stales and counties, is ;is follows: 
Alabama. LaiulcnlaU'. Mohih-. 
Flouida. — (iiulsden. .lackson. \\'a.><liiiiL^l(>M. 
Mississippi. — Jackson, 'i'islioinin^d. 
Tkw ks.s k k. — Tlanli n . 
Fig. 24.— Map showing distribution of Brood XXI, I'M). 
Brood XXII— 7^/-e(/eam— 1910. (Fig. 25.) 
This 13-year l)rood, wliicli aj)peared last in 1897, is of small (^xtent. 
but well established by many reliable records, the oldest of whicli da t e> 
back' to 1806. It is Brood iv of Walsh-Riley and VI of Kiley. 
A summary of the distribution of this brood was i^iven by Mr. 
Schwarz in Circular No. 22 of the Division of Entomology, is.sued in 
May, 1897. This incjuiry resulted in the report of but one additional 
locality. Tlie (listrii)uti()n and relationshij) of this brood isLnxcn by 
Mr. Schwarz in tlie cii'cular referred to, as follows: 
It is confined to parl.< of .southern Mis.sissippi and adjacent parts of Louisiana east of 
the Misssissippi, the particular localities Ix-ing given further on. Dr. D. L. Phares, of 
Woodville, Miss., has taken particular pains to iLscertain the extent of this l)rood, and 
his lucid and concise account, already puhlishcd in 1SS5. in P.ullelin S (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, 
