THE AMERICAN ENTOMOLOGIST. 



60 



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 Eureka, and Wm. Muir of Fox Creek, 

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

 in the year 18.59. 



By referring to our Brood XI, it will be soon 

 that in 1846 or dui'ing the first year of the Mexi- 

 can war, this 13-year brood appeared in South 

 Illinois simultaneously with a 17-year brood in 

 ' Western Pennsylvania and Ohio. 



BK001> \'I.—Sft>lcmdccini—'iSM, 1872. 



til the year 1872, being the same year as tlie 

 preceding, and at intervals of 17 years thereaf- 

 ter, they will in all probability appear in the 

 soutlicastern part of Massachusetts ; across Long 

 Island ; along the Atlantic coast to Chesapeake 

 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 referred 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 16;W. 



Dr. Fitch in the account of liis ;!d brood (N. 

 Y. Kep. 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 Pennsylvania. 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, 18.5.5, 

 and I have received specimens fi-om 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 sep- 

 temdeciui Brood VI with our great tredecim 

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

 curred simultaneously in 18.5o, but the exact 

 dividing line of these two broods is not so easily 

 ascertained. Certainly, after reaching the Ohio 

 river, the septemdecim brood extends as far 

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

 his " Notes on the Cicada decern septima," re- 

 cords their appearance at that place in 1821. 



ima IJroofl IV ; in which case the Ciciidiia appear for two 

 consecutive years in Union county, lUs . , as they do (.See 

 Brooils IX antl X) in Central Ohio, and portions of North- 



westi-ni Misstmri. 



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. 



BKOOD VU.—Sciitcmdecim~\li7n, lS7i- 



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

 tbereafter, they will probably occur in southeast 

 Nebraska. 



Mr. Clarke Irvine, of Oregon, Holt county, 

 Missouri, has communicated to us the fact tluat 

 they appeared in Nebraska in 1857. The brood 

 is most probably confined to the eastern, or tim- 

 bered part of the State. We have no means of 

 ascertaining whether it be septemdecim or tre- 

 decim; but, from the fact that the latitude is 

 rather more northerly than tredecim is known lo 

 occur, we strongly suspect it to he septemdecim, 

 and have placed it accordingly. 



BROOD \in.—Seplc,nrlnim—laijl, 1S77. 



In the year 1877, and at intervals of 17 years 

 thereafter, they will, in all proljability, appear 

 in the vicinity of Schuylerville and Fort Miller, 

 in Now 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 the north part of New Jersey and into 

 Pennsylvania. 



This brood is recorded by Prof. Potter as hav- 

 ing occurred at North Haven, Conn., in 1724, 

 1741, 1758, 1792, 1809, and 1820. 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 1843 throughout the 

 whole country mentioned above. In 1860, again, 

 it was spokeu of in the old series of the Prairie 

 Farmer (Vol. 22, p. 119) as having occurred 

 that year in New Jersey, and our correspondent, 

 Jas. Angus, of West Farms, AVostchester county, 

 N. Y., has himself witnessed its recurrence in 

 the years 1843 and 1860. 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. 



BROOD IX.— Septemdecim— isai, 187S. 



In the year 1878, and at intervals of 17 years 

 thereafter, they will, in all probability, appear 

 along the centre of the State ot Illinois, all along 

 the southern part of Iowa, and around St. 

 Jo.seph, in Buchanan county, in north Missouri. 



We have good records of their appearance in 

 1844 and 1801 all along the southern border of 

 Iowa, and in Mason, Fulton, McDonough, and 

 Champaign counties, in Central Illinois. In 1861 

 they also occurred in Champaign county, central 

 Ohio, and in Buchanan county, northwest Mis- 



