CHRONOLOGICAL ACCOUNT OF DIFFERENT BROODS. 35 
Entom., II, p. 29), where he says: “Mr. Meredith, a member of the 
senior class of the Agricultural College, and a resident of Taylor County, 
informs me that there were no Cicadas in that count y this year, but that 
they were there in 1863. He says he ‘is certain as to the last date.’ 
Unless there is some mistake in this, we have here a small area of a 
third brood—Professor Riley’s Brood No. XV.” 
Professor Bessey himself classed this report among the doubtful 
ones, and it will be best not to adopt it without further corroborative 
testimony. 
Broop XVI.—Tredecim—1880, 1893. 
In the year 1880, being the same as the preceding, they will, in all probability, ap- 
pear in the northern part of Cherokee County, Georgia, having appeared there, accord- 
ing to Dr. Smith, in 1828, 1841, 1554, and, according to Dr. Morris, in 1867. This brood 
occurred in 1867 simultaneously with the northern seplendecim Brood XXI. 
Like the other broods recorded from northern Georgia, this Brood 
XVI has since remained without confirmation. It seems difficult to 
get information on the appearance of the Cicada in that portion of the 
country, which on account of the interlocking and overlapping of 
several broods there, is of especial interest and importance in a correct 
chronology. I would especially urge correspondents from that region 
to send me data. 
Broop XVII.—Septendecim—1881, 1898. 
In 1881, and at intervals of 17 years thereafter, they will, in all probability, appear 
in Marquette and Green Lake Counties, in Wisconsin, and may also appear in the 
western part of North Carolina and about Wheeling, W. Va., in northeast Ohio, and 
a few in Lancaster County, Pennsylvania, and Westchester County, New York. 
There is abundant evidence that they appeared in the counties named in Wisconsin 
in 1864, and fair evidence that they appeared that year in Summit County, northeastern 
Ohio, while straggling specimens were found in the same year, by Mr. S. S. Rathvon | 
in Lancaster Chante Pennsylvania, and by Mr. James Angus, in Westchester County 
New York. Dr. Fitch also records their appearance in 1847, or 17 years previously, 
in the western part of North Carolina, and Dr. Smith in Wheeling, W. Va., in 1830, 
1847, and 1864. The distance between the localities given is very great, and it is 
doubtful whether all these records belong to one and the same brood. 
1881.—The more southern localities given for this brood, viz., North 
Carolina and West Virginia, remained unconfirmed, and are thus ren- 
dered even more doubtful now than they were when I wrote the above, 
in 1868. I have also no further records from northeastern Ohio, but 
from the remaining States confirmatory reports were recieved in 1881. 
From Wisconsin, Dr. J. A. Renggly, of La Crosse (letter of October 20, 
1881), records the appearance of the Cicada in La Crosse County; and J. 
W. Wood, of Baraboo (letter of June 28, 1881), stated that they were 
abundant in 1881 in Sauk County, and still more abundant in 1864. 
From New York State they were reported by Mr. William T, Davis, of 
Tompkinsville (letters of June 24 and July 6, 1881), who observed the 
Cicadas on Staten Island; and from this locality they seem to extend into 
