lUiOol) will — THKDKCIM n>l!t. 55 
Jh'oods of f/u Th'trtu It- Y((if lidce. 
IJiiooi. Will Tmhriin MM!). (Fii;. 21.) 
This is an iminiportant brood, most of tlic rccoids icpicsfMiiiuM; 
scattorinjj: sj)ecimons ratluM- than dense s\\arm.s. Ii was oriLrinallv 
ostablisluHl by Professor Kih^v as l^i-ood X\I on llic tcstinioiiv 
of Dr. G. B. Smith, who ^j^ivcs in his Jioi^qstcr a rcMoid of its a|)|)('ai- 
anco ni Cherokee County, Ga, in 1S2S, 1S41, and \sr)\. Its a|)j)(>ar- 
ance in the same loeaHty was also recorded by Dr. ,1. (1. >h)iiis 
in 1S()7, and this seems to be the most important swarm of the brood. 
The records obtained since rehite to scatterhiiz: occurr(>ne(\s in three 
other States. 
Fig. 21.— Map showing distribution of Brood XVI IT, 1919. 
This brood immediately ])recedes in time of app(»arance tlie larj^est 
1.3-year brood known, namely, Brood XIX. The latter brood occu- 
])ies the ^lississippi A^alley in the main, but with scattering swarms 
extending? well over the Southern States and into A^'ririnia, and tluis 
overlaps the territory covered by Brood XATII, indicating: wry 
plainly the origin of tlu^ latter as accelerated swarms of Brood XIX. 
The localities for Brood XA'TTT as listed in BulkMin 14 are thosc^ 
given by Professor Riley in lcS94." Xone of them was verified in 
« Annual Report, U. S. Department of Ag^iniltiire, 1893, p. 204. (T\\o. rpmrda on 
which localities for this brood are based are given in an editorial imtc in Vol. V, Insect 
Life, pp. 298. 299.) 
31117— No. 71—07 5 
