lilidOI) XIII - SKl'TKNDKOIM — 1112 
57 
MAR-iTiAND. — Frcdciick CclinlN ;i 
Ohio. — Vinloii County. 
West Vikcini.v. — Calx'U ('<'uni\ 
ul nalliiuot.'. 
l>K<)c>i) XI II S(j)l(ii(/(Tliit 1922. ^Fii,'. 1(5.) 
Thi.s very compact brood, describcHl by Kitcli as Brood Xo. (>, ])y 
Walsh-Kilov as Brood III, and by Kilcy as l^rood \, covers in hir<^c 
part a prairie or s|)arsoly woodcnl rc<^ion cxUMidin*^ over ])()rtioiis of 
several States in the upper Mississipj)i Vall(\y. 
A detached ])r()od was formerly known in Pennsylvania, but seems 
not to Inive IxMMi sec^i in Inter V(Mirs. A f(^w in(li\i(hials were re|)orted 
Fig. Ki.— Map showing distribution of Brood XI 1 1, lU-'i'. 
from two counties in Maryland in 19U.3, and two very doubtful records 
(1888) have been found for Kentucky and Virginia. Mr. Hopkins 
in his Bulletin 68 gives records indicating possible swarms in Putnam 
and Lincoln counties, W. Va. None of these eastern records can have 
otJKM' than chance time relation with the main area covered by this 
brood. 
As the ])eri()(ncal Cicada is limited to forested an^is, the broods 
occurring in })rairie districts of northern Illinois and adjoining States 
are necessarily much broken and scattered, and J^rood XTII occurs, 
therefore, for the most y)art in small colonies in woods bordering 
streams. Xo special effort was nnide to get records in I'lOo, and this 
