CHRONOLOGICAL ACCOUNT OF DIFFERENTr BROODS. 29 
New York Weekly Tribune, June 24, 1876, and at the same time sent 
me a few specimens. 
In the American Entomologist, vol. IIT, p. 77, the late Mr. V. T. Cham- 
bers stated that he found the Cicada in Cheyenne Canon, Colo., in June. 
1876, and this statement very probably indicates a detached outpost of 
this seventeen-year brood XI, since, as I have already said, it is not 
probable that northern and central Colorado possess a seventeen-year 
brood. 
Broov XII.—Septendecim—1877, 1894. 
In the year 1877, and at intervals of 17 years thereafter, they will, in all prob- 
ability, appear in the vicinity of Schuylerville and Fort Miller, in New York; thence 
along both sides of the Hudson to its mouth, where they extend, at least, to New 
Haven, in Connecticut, and west across the north part of New Jersey and iuto Penn- 
sylvania; also in Dearborn County, Indiana; Kalamazoo, Mich. ; in Pennsylvania, 
North Carolina, Virginia, and Maryland. 
This brood is recorded by Professor Potter as having occurred at North Haven, Conn., 
in 1724, 1741, 1758, 1792, 1809, and 1526. It was also recorded by the same writer as 
having occurred in 1826 in Middlesex County, New Jersey, and by Dr. Fitch as having 
occurred in 1843 throughout the whole country mentioned above. In 1860, again, it 
was spoken of in the old series of the Prairie Farmer (vol. 22, p. 119) as having occurred 
that year in New Jersey, and Dr. Smith records it throughout the whole State in 
1775, 1792, 1809, 1°26, and1-43. Mr. James Angus, of West Farms, Westchester County, 
New York, has himself witnessed its recurrence in the years 1843 and 1860. 
In Pennsylvania, Mr. Rathvon found a few individuals in 1860, and Dr. Smith says 
it extends from the Susquehanna to the Delaware River, bounded by Peter’s Mount- 
ain on the south. In Virginia it occurred from the south part of Loudon County to 
the Roanoke River, and from the Blue Ridge to the Potomac, in 1826, 1843, and 1860; 
in Maryland from Anne Arundel County to the north part of Saint Mary’s, and from the 
Potomac to Chesapeake Bay, in 1-09, 1°26, 1843, and 1860; in Rockingham, Stokes, 
Guilford, Rowan, Surry, and adjacent counties, North Carolina, in 1792, 1309, 1826, and 
1843; in Dearborn County, Indiana, in 1843 and in 1860; and in Kalamazoo, Mich., 
during the same years. 
1877.—This is one of the best recorded broods; and as it appears in 
the immediate vicinity of New York, Brooklyn, Jersey City, and other 
great centers of population, the records for the year 1877 are abun- 
dant in newspaper articles as well as in letters from correspondents. 
The reports from New York State agree that in 1877 the Cicadas were 
extremely abundant on Staten Island, much less so on Long Island, 
while there were none within the city of New York. 
Along both sides of the Hudson River they were observed at many 
points, reaching so far north as in the vicinity of Troy in Rensselaer 
County, thus exactly contirming the extent of the brood as given above. 
In Connecticut they were observed by Mr. William H. Patton, who 
wrote me as follows on July 3, 1877: “‘ May 12th, large numbers of pupe 
were found under stones in woods near Meriden, Conn.; May 27th, I saw 
the first perfect insect here in New Haven, and can find no knowledge 
of its earlier appearance, although I heard rumors of its appearance 
before that date. At the present writing they are still plentiful in the 
limited localities which they frequent.” 
