THE AMERICAN ENTOMOLOGIST. 



69 



westward into Missouri, for several of the old 

 settlers around Eureka, in St. Louis county, 

 Mo., recollect it being -'locust year'' about the 

 time of its last appearance, while Mr. L. D. 

 Votaw of Kureka, and AVm. Muir of Fox Creek, 

 Mo., both believe it was exactly 9 years ago, or 

 in the year 1850. 



By referring to our Brood XI, it will be seen 

 that in IStG or during tlie first year of the Mexi- 

 can war, this lo-year brood appeared in South 

 Illinois simultaneously witli a 17-ycar brood in 

 "Western Pennsylvania and Ohio. 



BROOU Vl.—Svplcmdccim—iSrtj, lS7i. 



In the year 1872, being the same year as the 

 preceding, and at intervals of 17 years thereaf- 

 ter, they Avlll in all probability appear in the 

 southeastern part of Massachusetts ; across Long 

 Island ; along the Atlantic coast to Cliesapeake 

 Bay, and up the Susquehanna at least as far as 

 to Carlisle in Pennsylvania. Also at Kanawha 

 in Virginia, and Gallipolis, Ohio, on the Ohio 

 river. This is the brood which we i-eferred to in 

 Brood III, and which there is every reason to be- 

 lieve is the one recorded by Morton in his •'Me- 

 morial," as occurring in IGoo. 



Dr. Fitch in the account of his od brood (N. 

 Y. Hep. I, p. :!!)), says: "The third brood ap- 

 pears to have the most extensive geographical 

 range. From the southeastern part of Massa- 

 chusetts, it extends across Long Island, and 

 along the Atlantic coast to Chesapeak Bay, and 

 up the Susquehanna at least as far as to Carlisle 

 in Penusj'lvania. And it pi'obably reaches con- 

 tinuously west to the Ohio, for it occupies the 

 valley of that river at Kanawha in "Virginia, and 

 onwards to its mouth, and down the valley of 

 the Mississippi probably to its mouth, and up 

 its tributaries, west, into the Indian Territory. 

 This brood has appeared the present year, 185.5, 

 and I have received specimens from Long 

 Island, from South Illinois, and the Creek Indi- 

 an country west of Arkansas," etc. 



There is every reason to believe that Dr. 

 Fitch, in this account, has confounded this se^j- 

 temdeciiii Brood VI with our gvea,t .tredecim 

 Brood XIII, for it so happened that they both oc- 

 curred simultaneously in 18oo, but the exact 

 dividing line of these two broods is not so easily 

 ascertained. Certainly, after reaching tlie Ohio 

 river, the septemdecim brood extends as fsir 

 south as Gallipolis, Ohio ; for Prof. Potter, in 

 his " Notes on the Cicada decem scptima,"' re- 

 cords their appearance at that place in 1821. 



But we incline to believe that well nigh the rest 

 of the territory mentioned by Dr. Fitch was oc- 

 cupied by the tredecim brood, and our reasons 

 for this belief are given in the account of our 

 Brood XIII. 



BKOOU VIl.— Seyy/o«irffC///l— 1SJ7, 1S74- 



in the year 1874, and at intervals of 17 year* 

 tliereafter, they will probably occur in southeast 

 Nebraska. 



Mr. Clarke Irvine, of Oregon, Holt county, 

 INIissouri, has communicated to us the fact that 

 they appeared in Nebriiska in 1857. The brood 

 is most probably confined to the eastern, or tim- 

 bered part of the .State. We liave no means of 

 ascertaining whether it be septemdecim or tre- 

 decim:, but, from the fact that the latitude is 

 rather more nortlierly than tredecim is kno^^'n to 

 occur, Ave strongly suspect it to haseptcmdccitn, 

 and liave placed it accordingly. 



BROOD \m.—SeptcmdecU)i-~\mf, 1S77. 



In the year 1877, and at intervals of 17 \ ears 

 thereafter, they will, in all probability, appear 

 in the vicinity of Schuylerville and Fort Miller, 

 in New York. From thence along both sides of 

 the Hudson to its mouth, where they extend, at 

 least, to New Haven in Connecticut, and west 

 across tlie noi'tli part of New Jersey and into 

 Pennsylvania. 



This brood is recorded by Prof. Potter as liav- 

 ing occurred at North Haven, Conu., in 172f , 

 1741, 1758, 17IJ2, 180y; and 182G. It was also 

 recorded by the same writer as having occurred 

 in 1826 in Middlesex county, N. J., and by Dr. 

 Fitch as having occurred in 181o througliout the 

 whole country mentioned above. In 18G0, again, 

 it was spoken of in the old series of the Prairie 

 Farmer (Vol. 22, p. ll'J) as having occurred 

 that year in New Jersey, and our correspondent, 

 Jas. Angus, of West Farms, AVestoliester county, 

 N. Y., has himself witnessed its recurrence in 

 the years 18t;j and 18G0. It probably extends 

 but a short distance into Pennsylvania, as Mr. 

 S. S. Kathvon found but a few straggling speci- 

 mens in Lancaster county in 1860. 



BilOOD iyi.—Scptemdecim—\m\, 1S7S. 



In tlie year 1878, and at intervals of 17 years 

 tliereafter, they will, in all probability, apjiuar 

 along the centre of the State ot Illinois, all along 

 the southern part of Iowa, and around St. 

 .Joseph, in Buchanan county, in north Missouri. 



"We have good records of their appearance in 

 1844 and 1861 all along the southern border ot 

 Iowa, and in Mason, Fulton, McDonough, and 

 Champaign counties, in Central Illinois. In 18G1 

 they also occurred in Chami)aign county, central 

 Ohio, and in Buchanan county, northwest Jlis- 



