HKOOI) XVI — SKl'TKNDKCMM— 1!»()H. 
68 
In Bulletin 14 and older ])iil)li('}iti()ns a western ontposl in Boulder 
County, Colo., was r(^j)ort(Ml for tliis brood. 'Phis j-ecord is imdoul)!- 
edlv (MToncons, and arises from the confusion of one oi- oilier of (lie 
mountain sjXM-ies of Cicada which also ha\-c life cvcles of >e\cral 
years and duplicate soniewliat the lial)its of the (^asteiii species. 
Prof. C. V. Ciill(^tt(\ in answcM- to an iiupiirv hy the \\iilei\ stales 
tliat he does not believe that f<( j)t( ndrciin occurs in Colorado, inasmuch 
as lie lias not found a sin^^le exam])le of it in the cours(^ of {]w insect, 
collect imr (h)ne tliere l)y himself and students durintr the last sixteen 
velars, and he sus])ects that the insect reported is Tihiccn nmosd Say, 
\\hicli miirht rea(Hly have been mistaken for septcndcnm. 
li,;. JO.— Map showing distribution of Brood XVII, HiO'.'. 
The distribution, by wStates and counties, is as follows: 
A K K A N s.\s. — l''r;i 1 1 k 1 i n . 
Iowa. — Lee ( Vi. 
Nebraska. — Iiidianlson. 
I'.uooi) Xy\l—SepUndeciw—\m). (Fig. 20.) 
11iis brood is a ])recurs()r of Brood 1, and was indicated \)\ the 
writer in Bulletin 18 (new series) of this Bureau. It comprises 
small or doubtful colonies only. The records (riven in that publica- 
tion are reproduced Ixdow without chan^^e except for the addition of 
two new localities for \'ir(xinia, one in A])ponuittox County and 
the other in the southwestern part of Washington County. 
